Operator
Greetings, and welcome to the MaxLinear first quarter 2026 earnings conference call. At this time, all participants are in a listen-only mode.
A brief question-and-answer session will follow the formal presentation. If anyone should require operator assistance during the conference, please press star zero on your telephone keypad.
As a reminder, this conference is being recorded. It is now my pleasure to introduce your host, Leslie Green, Investor Relations.
Thank you. You may begin.
Leslie Green
Thank you, Maria. Good afternoon, everyone, and thank you for joining us on today's conference call to discuss MaxLinear's first quarter 2026 financial results.
Today's call is being hosted by Dr. Kishore Seendripu, CEO, and Steve Litchfield, Chief Financial Officer and Chief Corporate Strategy Officer.
After our prepared comments, we will take questions. Our comments today include forward-looking statements within the meaning of applicable securities laws, including statements relating to our guidance for the second quarter of 2026, including revenue, GAAP and non-GAAP gross margin, GAAP and non-GAAP operating expenses, GAAP and non-GAAP interest and other expense, GAAP and non-GAAP income taxes, and GAAP and non-GAAP diluted share count.
In addition, we will make forward-looking statements relating to trends, opportunities, execution of our business plan, and potential growth and uncertainties in various product and geographic markets, including, without limitation, statements concerning future financial or operating results, opportunities for revenue and market share across our target markets, new products, including the timing of production and launches of such products, demand for and adoption of certain technologies, and our total addressable market. These forward-looking statements involve risks and uncertainties, including risks outlined in our Risk Factors section of our recent SEC filings, including our 10-Q for the quarter ended March 31, 2026, which we filed today.
Any forward-looking statements are made as of today, and MaxLinear has no obligation to update or revise any forward-looking statements. The first quarter 2026 earnings release is available in the Investor Relations section of our website at maxlinear.com.
In addition, we report certain historical financial metrics, including, but not limited to, gross margin, income or loss from operations, operating expenses, interest and other expense, and income tax on a both GAAP and non-GAAP basis. We encourage investors to review the detailed reconciliation of our GAAP and non-GAAP presentations in the press release available on our website.
We do not provide a reconciliation of non-GAAP guidance for future periods because of the inherent uncertainty associated with our ability to project certain future changes, including stock-based compensation and its related tax effects, as well as potential impairments. Non-GAAP financial measures discussed today are not meant to be considered in isolation or as a substitute for comparable GAAP financial measures.
We are providing this information because management believes it is useful to investors as it reflects how management measures our business. Lastly, this call is also being webcast, and the replay will be available on our website for two weeks.
Now let me turn the call over to Dr. Kishore Seendripu, CEO of MaxLinear.
Kishore?
Kishore Seendripu
Thank you, Leslie, and good afternoon, everyone. Q1 was a strong and important start to the year, and we believe it marks the beginning of a multi-year growth phase for MaxLinear led by our optical data center business.
Revenue grew 43% year-over-year, reflecting strong execution, accelerating adoption of our newest products, improving visibility and bookings, and sustained momentum across our infrastructure programs. Infrastructure is now our largest revenue category, growing 136% year-over-year in Q1, driven by robust production ramps in optical data center-oriented platforms.
We see this momentum continuing to build as hyperscale customers rapidly scale AI-centric architectures. Based on customer orders and rising visibility of program ramps, we are increasing our expectations for 2026 optical data center revenue to $150 million to $170 million range.
We also expect a step-function data center revenue increase beginning in Q2, with expected strong upside as run rates expand into 2027. At the center of this data center momentum is our Keystone PAM4 DSP optical transceiver platform.
Keystone is now ramping at multiple major hyperscale customers across both the US and Asia, supporting 400G and 800G PAM4 deployments for scale-up and scale-out applications. These ramps validate our differentiation in performance, power efficiency, and integration.
At OFC this year, we showcased our 1.6 terabit data center platform featuring Rushmore, our 200 gigabit per lane PAM4 DSP; Washington, our matching 200 gigabit per lane TIA; and Annapurna, which is our 1.6 terabit AEC and 3.2 terabit on-board electrical retimer platform for scale-up applications. Rushmore and Annapurna are foundational to the next wave of data center optical architectures, including LPO, LRO, AECs, XPO, and co-packaged optics.
With Keystone validating our ability to execute at scale, customer engagement around Rushmore has accelerated faster than expected. We anticipate production ramps beginning in late 2026, with revenue growth expected to continue strong growth through 2027 as the next-generation speed and bandwidth cycle unfolds.
We are also expanding our footprint within hyperscale data centers beyond PAM4-based optical and electrical interconnects. We have secured our first XGS-PON design win at a US hyperscale data center through a Tier 1 OEM partner, as cloud operators deploy resilient, dedicated PON-based control plane architectures spanning multiple data centers.
Adjacent to compute, we have also won USB bridge controller designs with two major hyperscalers to support rack-level AI system management, which opens the door to increasing content per rack over time. Our Panther hardware storage accelerator SoC family continues to build momentum with growing design win activity among Tier 1 network appliance and cloud service providers.
Persistent memory constraints are highlighting Panther's advantages in hardware-accelerated compression, high throughput, and ultra-low latency memory access. We are actively sampling next-generation Panther 5 with key customers, and based on current engagement, we expect storage accelerator revenue to at least double in 2026 compared to 2025.
Beyond data centers, wireless infrastructure momentum is improving as carriers increase investments in 5G RAN access and backhaul to support cloud-connected and edge AI functionality. Our Sierra single-chip radio SoCs are now deployed with multiple North American operators, with expanding opportunities as 5G networks continue to evolve.
In broadband and connectivity, we are executing large-scale deployments of our single-chip fiber PON and Wi-Fi 7 gateway platforms with a second major Tier 1 service provider in North America, with additional ramps expected later in the year in Europe. These long-cycle deployments provide a stable foundation, leverage the same strengths in integration and power efficiency that clearly differentiate MaxLinear's data center portfolio.
In summary, we are very pleased with the strong start to '26 and are especially excited by the momentum accelerating in our optical data center business. With multiple customers entering meaningful ramps of our 800-gigabit Keystone family and broader engagement across our 1.6 terabit Rushmore and Annapurna product families across scale-out and scale-up AI architectures, we believe MaxLinear is exceptionally well-positioned for sustained transformative growth.
Our disciplined focus on execution and innovation gives us confidence that 2026 will be a pivotal year as we continue to evolve our strategy and deliver long-term value for our customers and shareholders. With that, let me now turn the call over to Steve Litchfield, our Chief Financial Officer and Chief Corporate Strategy Officer.
Steve Litchfield
Thanks, Kishore. Total revenue for the first quarter was $137.2 million, up from $136.4 million in the previous quarter and up 43% from the $95.5 million in the first quarter of 2025.
Infrastructure revenue for the first quarter of '26 was approximately $63 million, broadband revenue was approximately $44 million, connectivity revenue was approximately $19 million, and industrial multi-market revenue was approximately $12 million. GAAP and non-GAAP gross margins for the first quarter was 57.5% and 59.5% of revenue.
The delta between GAAP and non-GAAP gross margin in the first quarter was primarily driven by $2.6 million of acquisition-related intangible asset amortization. First quarter GAAP operating expenses were $96.1 million, and non-GAAP operating expenses were $59.9 million.
The delta between GAAP and non-GAAP operating expenses was primarily due to stock-based compensation and performance-based equity accruals of $28.5 million combined and acquisition-related cost and other cost of $6.5 million. GAAP loss from operations for Q1 2026 was 13%, and non-GAAP income from operations in Q1 was 16% of net revenue.
GAAP and non-GAAP interest and other expense during the quarter was $1.4 million and $1.3 million, respectively. In Q1, net cash flow used in operating activities was approximately $8.9 million.
We exited Q1 of 2026 with approximately $89.9 million in cash, cash equivalents, and restricted cash. The primary use of cash was due to substantial prepayment for wafers supporting rising demand for our data center low foundry products, for which we have increasing order backlog in the second half of the year.
Our days sales outstanding was down in Q1 to approximately 27 days. Our inventory was up approximately $8 million versus the previous quarter, with days of inventory improving to approximately 128 days.
This concludes the discussion of our Q1 financial results. With that, let's turn to our guidance for Q2.
We currently expect revenue in the second quarter of 2026 to be between $160 million and $170 million. Looking at Q2 by end market, we expect to see growth from all four of our business segments, with particular strength in infrastructure driven by data center optical interconnects.
We expect second quarter GAAP gross margin to be approximately 56% to 59% and non-GAAP gross margin to be in the range of 58% and 61% of revenue. We expect Q2 2026 GAAP operating expenses to be in the range of $91 million to $97 million.
We expect Q2 2026 non-GAAP operating expenses to be in the range of $61 million to $66 million. We expect our Q2 GAAP interest and other expense to be in the range of approximately $1.8 million to $2.2 million.
We expect our Q2 non-GAAP interest and other expense to be in the range of $1.8 million to $2.2 million, with FX volatility being the primary risk. We expect a $2 million tax benefit on a GAAP basis and a non-GAAP tax provision of approximately $1 million.
We expect our GAAP and non-GAAP diluted share count in Q2 to be approximately 95 million each. In summary, with strong growth in our data center optical business and several additional high-value products still early in their market ramps, we have transformed MaxLinear into an infrastructure-focused company.
Our investments over the past several years have brought us to this point where we are well-positioned to deliver sustained growth, operating leverage, and increasing shareholder value. We're excited about the opportunities ahead and confident in our ability to execute.
With that, I'd like to open up the call for questions. Operator?
Operator
Thank you. We will now be conducting a question-and-answer session.
If you would like to ask a question, please press star one on your telephone keypad. A confirmation tone will indicate that your line is in the question queue.
You may press star two if you would like to remove your question from the queue. For participants using speaker equipment, it may be necessary to pick up your handset before pressing the star keys.
We ask that analysts limit themselves to one question and a follow-up so that others may have an opportunity to do so as well. One moment, please, while we poll for questions.
Our first question comes from Tore Svanberg with Stifel. Please proceed with your question.
Tore Svanberg
Yes, thank you, and congrats on the momentum here. Kishore, you mentioned optical DSP revenue are not tracking to $150 million to $170 million.
I think that's about $30 million, $40 million higher than what you had expected before. Just wondering what transpired in the quarter to see such a steep increase?
Is it new customers, or are you basically just seeing steep ramps with existing customers? Any more color you can add on that additional revenue would be great.
Thank you.
Kishore Seendripu
Thank you, Tore. Yes.
At the time when we set the guidance, we, obviously, are looking at a number of ramps at a number of customers, and we were being conservative. At the same time, we were also fairly optimistic internally that we should be seeing strong growth coming in the latter half of this year.
Now with all the visibility and the lead times that are necessary for providing the product, we have very good visibility, and the ramps are setting in very nicely both across 400-gig and 800-gig solutions. I just think it's all about timing of the ramps, and the success of the quals, and our ability to scale up to meet the surging demand we are seeing now.
Tore Svanberg
Very good. As a follow-up for you, Steve, you mentioned that prepayment for wafer capacity.
I'm just wondering are you sort of done with that now, or should we expect more cash outflows in the coming quarters? I also noticed you increased the revolver by $30 million, anything you can say here on the balance sheet and cash position going forward?
Thank you.
Steve Litchfield
Sure, Tore. Not a problem.
Consistent with what we raised back in Q4 of last year, we knew we would have some working capital needs kind of going in Q4 as well as Q1. That certainly played out the way that we expected.
Are we through it entirely? I guess to some degree, depends on how much demand continues to improve, right?
As that demand improves, certainly we may continue to see some prepayments, but you'll start to see this inflect as the revenues increase. Second part of your question on the revolver, yeah, we did have a revolver that was expiring in June.
We renewed the revolver. We did took it up slightly, a pretty minor move for the size of the company and the direction of the company.
Tore Svanberg
Great. Thank you.
Operator
Our next question comes from Joe Quatrochi with Wells Fargo & Co. Please proceed with your question.
Oh
Joe Quatrochi
yeah, thanks for taking the question. Maybe just a follow-up on that.
I guess, can you talk about just your supply chain and capacity to support the growth that you're seeing? Clearly the mix of your growth be a bit different than maybe previously when you were at kind of similar revenue levels.
Steve Litchfield
Joe, I'll take this. Look, I don't think it's any surprise to anyone there's supply constraints out there.
I think we planned well for this and worked really closely with the partners on this front. I think we've seen really good success, and we expect to continue to see that going forward.
Joe Quatrochi
Okay. Then as a follow-up, can you talk maybe a little bit on the gross margin guidance?
Why wouldn't we see maybe a little bit more leverage on the sequential revenue step-up that's pretty significant here?
Steve Litchfield
No. Obvious question.
I think this is consistent with what we've been seeing. You've heard my caution on this, Joe, and it's a little bit of the input cost.
Certainly there's some concerns out there, wafer cost, packaging, etc., are moving up. A lot of cases, the industry, ourselves included, have been able to pass along these costs, and so we expect that to be the case.
Just kind of given the uncertainty out there, I think we just want to remain cautious. You're absolutely right from the understanding that the infrastructure business typically does drive a higher gross margin, we're very optimistic as we look out the rest of this year and even into next year in that being a positive influence on our gross margins.
Operator
Our next question comes from Tim Savageaux with Northland Capital Markets. Please proceed with your question.
Tim Savageaux
Hi, and congrats on the results and especially guidance. Question on the infrastructure side, and I know that's mostly data center-driven, but looks like you grew something mid-30s sequentially in Q1.
I imagine data center was a big driver there. Given what you're guiding to, do you expect some sequential growth of a similar magnitude in Q2 in infrastructure?
Steve Litchfield
I think, Tim, from my standpoint, we don't typically guide in markets in that level of detail. We did say that it was going up.
We did emphasize in our prepared remarks that, as we look at this year, now clearly the infrastructure business has much bigger growth drivers. We have a lot of new products that are ramping with some new customers, we would certainly expect infrastructure to be a much bigger driver of growth in the coming year.
Tim Savageaux
Okay. To follow up once again, given the step-up we're seeing in Q2, do you have any comments about overall revenue growth expectations for '26?
Looks like we could be tracking, I don't know, 35%, 40%, but any comments from the company?
Steve Litchfield
Look, we only guide one quarter, and we're not going to change that here today. We are very excited about the growth potential that we have and these new customers and the new product ramps.
I think and frankly, with the visibility that we have, we start to roll into '27 as well. I think we're excited to see the growth in 2026 and even backlog starting to build into 2027.
Tim Savageaux
Great. Thanks very much.
Steve Litchfield
Thanks, Tim.
Operator
Our next question comes from Ananda Baruah with Loop Capital Markets. Please proceed with your question.
Ananda Baruah
Good afternoon, guys. Really appreciate the question.
Congrats on doing all the work to get to this place with DSP. It's cool to see it play out.
Kishore, you mentioned, just this first question is a DSP question. You mentioned to one of the prior questions that around magnitude of step-up and guide that you guys have baked in some conservatism, sort of a program start ramp here, and that contributed to sort of a magnitude of step-up and guide.
Can you guys tell, though? I guess what I'm wanting to ask is, can you tell if the market ramp feels bigger than what you guys had originally anticipated, as distinct of conservatism?
Let me just ask that question. Do you have any sense of if the market ramp feels bigger, if the market TAM feels bigger?
Then I have a quick follow-up as well. Thanks.
Kishore Seendripu
Let me answer the first question. Obviously, the TAM expansion is real or the SAM expansion, even more so.
The PAM4 DSP expansion is very real as both US and China hyperscalers are deploying very, very rapidly. Depending on the architecture implementation, the amount of PAM4 DSPs used can vary completely based on the GPU configurations.
Scale-up and scale-out are both equally growing pretty strongly. To the extent that we are conservative, it's in the balance of thing.
That's our general positioning as a company, right? I don't think that's behavioral any different from us.
Do we expect more upsides? Absolutely.
We do expect more upsides, that is commensurate with all the programs reaching full run rates. I hope that answers the first question.
Your second question, please?
Ananda Baruah
Oh yeah. On Panther, can you just You had mentioned Panther is benefiting from some of the memory dynamics in the marketplace.
Can can you just walk us through Is that is that walk us through the ways in which Panther is is is holistically benefiting? Is it as simple as, memory is short, Panther provides performance, and you've been waiting here with Panther as well, you're benefiting?
Or is there are there more sophisticated, nuanced reasons as well that Panther is benefiting?
Kishore Seendripu
Yeah. There has always obviously been sophisticated nuanced to Panther, right?
Now, of course, memory is fashionable, right? Not 3 years ago when we got punished for some of our actions.
It's 60% of the data center spend is in memory. All memory is not equal.
As the AI engine accelerates, low latency, high capacity memory access is super important. The big benefit of Panther is it's an accelerator, it reduces latency dramatically and the power efficiency that brings to it, enables much more capability than just a memory compression, right?
I really feel that the performance part related to low latency, high bandwidth access enablement that Panther provides is the key differentiator. Thus far, our use of Panther has been really at the enterprise appliance level, if you will.
Now these enterprise storage appliance are getting increasingly deployed into mainstream cloud centers. I really feel there's much more to come with Panther 5 and Panther 6 in the future, and this is just the beginning of our Panther roadmap product family.
We expect this year the revenues to double. We've said that before, and hopefully next year as well, we got very strong growth based on the visibility we have.
Ananda Baruah
With all that said, do you feel bigger about the ultimate TAM potential for Panther, big picture?
Kishore Seendripu
In the big picture, absolutely, Panther has a lot of potential. Panther, as it is today, would not be sufficient, right?
The world and the deployment models evolve, there'll be more investment required. The TAM is pretty huge, and we just have to keep on converting more of the TAM into our SAM, and that will drive our roadmap.
Ananda Baruah
Thank you. Appreciate it.
Operator
Our next question comes from Christopher Rolland with Susquehanna International Group. Please proceed with your question.
Christopher Rolland
Hey guys, thanks for the question. Congrats on the strong results.
I apologize if this was asked, but in your prepared remarks or actually in the press release, you talked about for optical, multiple hyperscalers. Previously, I think your messaging around optical was it was very broad-based.
I think at OFC, we see all the design wins across so many different optical vendors. This seems like it's a big change, and might be changing customer concentration.
Perhaps if you could talk a little bit about that, are you now diversifying around these key hyperscaler opportunities? Is it one or two or all of them?
If you could elaborate a little bit as to what seems like is a pretty meaningful change here, that would be great.
Kishore Seendripu
Yes. Thank you, Chris.
It is pretty broad-based, our design wins across all the module vendors in the world. We have always maintained that we have designs across all the module vendors.
It's taken a while to map the module vendors' victories with the various end data centers, while we ourselves had to sort of do the business development work that creates the pull for various module vendors. Even at the end customers, it's pretty broad-based.
Obviously, we'll be concentrated on a few during the ramps, and as the ramp expands into 2027, we'll have other data centers that come online. Even as we speak now, it's a pretty broad-based success.
Is there more work to do to expand further to? Yes, I think we are only halfway there to our end data center diversification across all the hyperscalers.
There's more work to be done. What Keystone provides is an affirmative statement of MaxLinear's ability to successfully get through the interops, supply product at scale—remember we were worried about our ability to supply—and provide it at scale where it's very confidence-boosting in terms of our credibility as a world-class chip supplier.
Christopher Rolland
Thank you for that, Kishore. Maybe a quick follow-up.
I guess, if you could perhaps talk about 1.6T, how you think design wins and the ramp will go there. Is 800 just kind of the beginning, that they're qualifying on 800 and then they have plans to use you guys at 1.6, and they've communicated these plans?
Then, you also mentioned optical for scale-up in your press release as well. I don't think there's a huge transceiver usage for scale-up right now, mostly scale-out.
If you could talk about that, and what that means for you guys, that would be great as well.
Kishore Seendripu
You've hit many number of topics here, right? There are going to be different deployment models for scale-up to start with, right?
Having said that, the optical transceivers, 30% of the market is for scale-up, right? That's a pretty substantial part of the TAM, and 70% is for scale-out today.
Our participation in scale-up derives from the optical transceivers as well as now the new offering in 1.6 terabit for electrical retimers, which is on-board retimers, and for the active electrical cables as well. Those are all scale-up based applications.
I hope that answers your question of where our scale-up opportunities are coming from. They're really that 30% of the TAM I talked about.
Moving forward to 1.6T, the critical thing to keep in mind is that there is enormous confidence out there. We're shipping Keystone to major data centers today, and they're ramping very strongly in 2026.
We are now rolled out our 1.6 terabit Annapurna family for electrical applications. I think that this level of execution apart, and the success with the cloud relationships, module partnerships, and the qual and interop completion is creating a far more pull for our 1.6T participation than I would have guessed at this point in time.
In a sense, we hope that by the end of the year, we'll have qual-ed on 1.6T. I just want to keep this point that 800-gig and 1.6 terabit will probably one of the most long-lasting interconnect applications in the data center world.
Having 1.6T really actually expand our ability to garner more revenues and more market share.
Christopher Rolland
Excellent. Thank you, guys, and congrats again.
Kishore Seendripu
Thank you.
Steve Litchfield
Thanks, Chris.
Operator
Our next question comes from Richard Shannon with Craig-Hallum Capital Markets. Please proceed with your question.
Richard Shannon
Thanks, guys, for taking my question. Maybe I'll follow up on the topic of DSP here and ask a question slightly different way here, which is obviously your 400, 800-gig with Keystone are going very well and heard some relatively positive comments about Rushmore so far here.
I'd love to get a sense here since it seems like you're gaining some very nice share in Keystone, to what degree is this conveying directly or could it convey directly to success in Rushmore? How do you view the potential revenue trajectory over a period of time relative to what you've seen so far with Keystone?
Kishore Seendripu
Thank God for Keystone, right? Everything valuable takes a long time.
It has taken us a long journey through two, three generations of investment. Now we're into Rushmore.
The success of Keystone makes us an incumbent, right? The power of incumbency is the ability to have the relationships with the cloud customers, the module makers, the confidence in your ability to supply, and the quality of your product.
On the 1.6 terabit solution, I dare say we are at the top tier on the performance category. Our customers acknowledge that.
They're readily going to develop solutions that would be quickly move to the next phase with quals, etc., with the data center folks. As we are not the first ones with 1.6 terabit relative to our incumbent competitors, two of them.
I really feel it bodes very, very well. With 1.6 terabit, you expect the ASPs to increase, right?
Clearly for the same units or even expanding units that are happening, the TAM dollars substantially increase. As the mix becomes more and more 1.6 terabit, I really believe that it'll have an uplifting effect on our revenues and gross margins even as our market share expands.
Richard Shannon
Okay. Kishore, thanks for that detail.
My follow-on question is on the cable and broadband space here. Just generally, love to get a sense of your expectations for the trajectory of this year.
Last call, you talked about a soft first half. Certainly your starting point it shows that here.
Then talking about calendar '26 still being down, which I think who completely believe here. Want to get a sense if any update on that, and whether you have any visibility into when DOCSIS 4.0 starts to have an impact.
Kishore Seendripu
Thank you for the question. Right.
We had a spectacular growth year in '25 for broadband, grew about 75%. We had a pull back in Q1, which is also some seasonality built into it.
Happy to say that looking forward, all our businesses are growing actually, which is sort of a tailwind as our data center-centric and infrastructure revenues grow, we also have other segments of a diversified portfolio really generating some positive momentum as well. I'm happy to share that we expect our broadband business to start growing from Q2 and into 2027.
I think cable DOCSIS 4.0 certifications have happened, but some of the operators are still delayed on their network readiness. However, a big growth is coming with ultra DOCSIS 3.1 and 4.0 into 2027.
The one thing that's happened post-COVID is that during the down period, right, we have been winning market share in broadband, which bodes very well for our fiber play. In fact, fiber PON business continues to grow through Q1, Q2, and we started major deployments with a major Tier 1 operator in North America.
That's happening in the second half of the year, for which we've already done pre-shipments. Then later, we have European deployments.
I think it's all good. It's all growing, and we waited for a time to recover through the COVID slowdown.
I think we feel very good about that.
Richard Shannon
Okay. Great.
Thank you, guys.
Kishore Seendripu
Yep.
Operator
Our next question comes from Karl Ackerman with BNP Paribas Asset Management. Please proceed with your question.
Karl Ackerman
Yes, thank you. I have two clarifications, if I may.
Kishore, you spoke briefly about cable and broadband just now, but could you be more specific with respect to the June quarter guide? It seems like most of the growth is coming from infrastructure.
Could you talk about what your outlook is for broadband, connectivity, and multimarket, whether they can all grow on a sequential basis in the June quarter, too? Then I have a follow-up, please.
Steve Litchfield
Hey Karl, it's Steve. Thanks for the question.
I think we mentioned earlier, all four end markets will be up. I do expect a lot of that growth to be from infrastructure just seeing the inflection that we're seeing from particularly some of the data center products.
That is our expectations.
Karl Ackerman
Got it. Okay.
Then, just to follow up on Chris' earlier question, is much of your optical DSP growth coming from hyperscaler-owned designs, and therefore, you are qualifying with them directly? Or is your hyperscaler exposure predominantly through module vendors providing a merchant solution?
It's
Kishore Seendripu
both.
Karl Ackerman
Got it. Thank you very much.
Kishore Seendripu
Thank you, Karl.
Operator
Our next question comes from Quinn Bolton with Needham & Company. Please proceed with your question.
Quinn Bolton
Hey guys, let me offer my congratulations on the nice results and outlook. Kishore, I guess I wanted to follow up on Tim's question earlier about just the breadth of the growth in the infrastructure business in Q1.
Was it predominantly from the optical DSPs, or did you see good contribution from Panther, the wireless access products as well?
Steve Litchfield
Quinn, I'll jump in here on this one. Look, really across the board, we saw some really good growth from all of the products within the infrastructure segment.
I would say from here, you start to see kind of data center really break out. The other product lines absolutely contribute.
Kishore mentioned earlier about Panther. Panther is going extremely well.
Wireless infrastructure, which was pretty soft last year, talked about the improvements, we expect to see more of that this year. Those are probably the top three or four products there.
Quinn Bolton
Got it. Then I know sometimes gross margin takes a couple of quarters to reflect your product mix because you've got to flow products sitting in inventory.
You had a, I think 30-ish percent increase in infrastructure in the quarter, maybe a 25% decrease in broadband quarter-on-quarter. I would have thought that would have been a nice tailwind for you, gross margin for relatively flat.
Just wondering, was there anything that sort of held back gross margin given the mix shift, or do you think it's just sort of a timing issue? Obviously, the go-forward look and the mix to infrastructure sounds like it's a nice tailwind to gross margin, just trying to think when we might start to see it show up in the income statement.
Thanks, Steve.
Steve Litchfield
Yep, certainly. No problem, Quinn.
Look, we came in right at our guidance what we talked about. The mix is definitely continuing to improve.
I mentioned a little earlier in a separate question about just input cost. I think we're just trying to be cautious as we look forward.
I do just as you stated, yes, I do believe it's a tailwind. Especially as you move into 800-gig, 1.6T, all of those have higher gross margin, we will certainly continue to see nice benefits on the gross margin side as infrastructure gets to be a larger percentage of our business.
Quinn Bolton
Great. Thank you.
Congrats again.
Steve Litchfield
Thanks, Quinn.
Operator
Our next question comes from Suji Desilva with ROTH Capital Partners. Please proceed with your question.
Suji Desilva
Hi, Kishore. Hi, Steve.
Congratulations on the progress here. You talked about 2Q some of the optical stepping up here.
Are the programs all commencing ramp, or are the other programs phasing in and starting in 3Q, 4Q just to give us a set of layers across the year, or really are we all in ramp for all of the key programs already? Oh,
Kishore Seendripu
hi, Suji. There are different product cycles with different ramps, and they're all kicking in now, and there'll be some more that'll catch up later in the end of the year.
It really took a while for them all to start deploying with interop quals, everything complete. Now we're seeing strength each of these layerings based on the bookings we have.
Suji Desilva
Okay. That's helpful color.
Thank you, Kishore. Then Kishore, you mentioned in the prepared remarks, I believe I heard wireless infrastructure playing a part in data center connectivity, maybe data center interconnect or someone along those lines.
Can you help us understand that opportunity, and how big that is, and a niche or can that become a mainstream opportunity?
Kishore Seendripu
Could you repeat that question, Suji?
Suji Desilva
Oh, the wireless infrastructure, the connectivity helping backhaul for data center and so forth. Is that a niche application, or is that a growing application?
Yep.
Kishore Seendripu
If you look at the prepared remarks, I talked about 5G access and transport. You've seen a number of investments where there's a lot of AI at the edge and AI-enabled network infrastructure.
We see a lot of the telecom infrastructure people on the wireless now gathering some momentum about deployment increases, and especially that means that it changes the transport backhaul stuff, as well as certain elements of the access will change as well. This should all provide us a tailwind on the wireless infrastructure.
Now the growth mechanisms in wireless infrastructure, the rates of ramps will never match those of the data centers. However, you saw the announcement between Nvidia and Marvell, and you're seeing now genuine interest to move towards AI in the DU side of the network on the edge, in the wireless side as well.
We should definitely benefit as being one of the top two players in the wireless infrastructure space.
Suji Desilva
Okay. Very helpful, Kishore.
Thanks.
Kishore Seendripu
Operator, do we have one more question?
Operator
Yes. Our next question comes from Tore Svanberg with Stifel.
Please proceed with your question.
Tore Svanberg
Thank you. Just two quick follow-ups, especially on your new products.
Kishore, first on Annapurna, obviously, this starts with 1.6T. I'm just wondering if you could talk a little bit about MaxLinear's positioning there.
Are you going to go after all the standards? Obviously, there's Ethernet standards.
There's UALink. Are you going to participate perhaps also with some NVLink Fusion protocols?
Just trying to understand exactly where you're trying to intersect the market with Annapurna, especially on the retimer.
Kishore Seendripu
I know there's a lot of hoopla about AECs because of success of one very successful company on AECs, but if you look at the market size opportunity for a silicon player, the retimer market electrical for AI scale-up inside the compute server is humongous. As the speeds increase, you're going to see a lot of retimers.
Currently, our retimer offering is Ethernet-based naturally. However, the fundamental physics and the challenges of doing a very, very demanding PHY for electrical retimer application is done now.
With regard to adding the various standards, that's just an interface game. Now you can imagine this also lends itself to other chiplets sort of stories and things like that.
We've laid the framework and the groundwork of building a platform from which we'll have the optionality to go where the SAM and the TAM goes. At this point, we are in electrical retimer market for Ethernet-based application.
Tore Svanberg
That's very helpful. On Washington, I assume that obviously gets sold with either Keystone or Rushmore, but are you seeing design wins as well where your TIAs are perhaps participating on other people's DSP platforms?
Kishore Seendripu
Right now, our Rushmore and Washington are sampling, right? Customers are using them, but they're very, very excited about the performance.
Honestly, the TIA is beyond the TIA for Rushmore, right? If you think of an LPO strategy, the TIA is a fundamental block.
If you think about LRO strategy, the TIA is a fundamental block. MaxLinear is very well known for his great RF analog skills.
The CPO markets, if they're going to be bare-bones, then the TIA and driver is a natural fit. If they go more sophisticated on the DSP-based one, we already have the platform offering.
The real question comes as you go towards XPO, CPOs, and the various manifestations of it, the full offering is super super important. Washington is the first step in the direction of a fundamental platform that will have multiple derivatives and incarnations.
Tore Svanberg
Makes a lot of sense. Thank you.
Kishore Seendripu
Yep.
Operator
Our next question comes from Tim Savageaux with Northland Capital Markets. Please proceed with your question.
Tim Savageaux
Thanks. Quick follow-up for me as well, and that's on the hyperscale win for PON, which sounds like the data center out-of-band management stuff is.
I guess, can you talk a little bit more about the timing there and how significant this opportunity? When would you expect this design win to ramp, and could it be a needle-mover of some sort?
Thanks.
Kishore Seendripu
Absolutely, we just secured the win. There's a lot of qualification that goes through it, sometime in '27 it starts ramping.
How big that can be today I think this is one of the first of its kind sort of what I call a very, very interesting development where the data centers are seeing the value of a dedicated reliable link to control the entire data center network, right? We expect this TAM to expand to over hundreds of millions of dollars, but currently our expectation that at our revenues, it's going to be quite a bit of needle-mover even in the next year itself in the second half on a run rate basis.
Tim Savageaux
Thanks.
Operator
Our next question comes from Richard Shannon with Craig-Hallum Capital Markets. Please proceed with your question.
Richard Shannon
Hi guys, just have one follow-up for me here, and that's to dig in a little bit on the DSP side here. Want to get a sense of how big the other applications outside of what most people assume, and I certainly do, the duplex optical DSP being a big part of it, but how could the rest of that business, that LRO, LPO, CPO, AEC, retimer, etc., how big can that be in a year or two?
Can that be 10% or even 20% of that total portfolio? Any sense of that would be great.
Thank you.
Kishore Seendripu
We're still in the early innings of how this all market is going to play out, whether it's CPOs or whether it is I know people get excited, but still I think we are 3 years or out away from determining that. At this point, it's a very small share of the market from a units point of view, okay, from a silicon units point of view.
I don't expect it to be a huge part of our revenues, but from a TAM-wise, I would I would rate the optical transceiver DSPs to be the number one TAM substantially overwhelming the rest. Second would be electrical retimers when that happens, and the third would be AECs.
AECs AEC is as you go story because there is a certain level of point-in-time application nature to the AEC, and that itself will evolve. I would rank them in that order, but at this point, it's it's going to be massively overwhelmed by this by revenues in the optical transceiver PAM4 DSP.
Richard Shannon
Okay. That's kind of what I thought.
Just wanted to hear that. That's all for me.
Thanks, Kishore.
Kishore Seendripu
Yep. Thank you.
Steve Litchfield
Thanks, Richard.
Operator
We have reached the end of our question-and-answer session, which there are no further questions at this time. I would now like to turn the floor back over to Leslie Green for closing comments.
Leslie Green
Thank you all. This quarter, we will be presenting at several financial conferences, and the details will be posted on our Investor Relations page.
Thank you all for joining us today, and we look forward to speaking with you again soon.
Operator
This concludes today's teleconference. You may disconnect your lines at this time.
Thank you for your participation.