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Segment Information | 12 Months Ended
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Jan. 26, 2025
Segment Reporting [Abstract] |
Segment Information | Segment Information The Company’s Chief Executive Officer functions as the chief operating decision maker ("CODM"). The CODM makes operating decisions and assesses performance based on the net sales and gross profit of the Company's major product lines, which represent its operating segments, to allocate resources (including employees, property, and financial or capital resources) for each segment predominantly in the annual budget and forecasting process. As discussed in Note 8, Goodwill and Intangible Assets, the Company currently has three operating segments—SIP, AMW, and ISC—that represent three separate reportable segments. The SIP reportable segment consists of a portfolio of optical and copper data communications and video transport products used in a wide variety of infrastructure and industrial applications. The AMW reportable segment provides infrastructure, industrial and high-end customers with high-performance protection devices and a portfolio of specialized radio frequency products. The ISC reportable segment provides industrial customers with an IoT solutions portfolio that includes a wide range of modules, gateways, routers, and connected services. Prior to the first quarter of fiscal year 2025, the Company had four operating segments—Signal Integrity, Analog Mixed Signal and Wireless, IoT Systems and IoT Connected Services. In the first quarter of fiscal year 2025, as a result of organizational restructuring, the Company combined the IoT Systems operating segment and the IoT Connected Services operating segment into the newly formed IoT Systems and Connectivity operating segment. As a result of the reorganization, the Company has three reportable segments. All prior year information in the tables below has been revised retrospectively to reflect the change to the Company's reportable segments. The Company’s assets are commingled among the various operating segments and the CODM does not use asset information in making operating decisions or assessing performance. Therefore, the Company has not included asset information by reportable segment in the segment disclosures below. Net sales and gross profit by reportable segment were as follows:
| Fiscal Year Ended January 26, 2025
(in thousands) | Signal Integrity |  | Analog Mixed Signal and Wireless |  | IoT Systems and Connectivity |  | Total
Net sales | $ | 261,747 |  |  | $ | 322,899 |  |  | $ | 324,641 |  |  | $ | 909,287 |
Segment cost of sales | 99,091 |  |  | 143,527 |  |  | 197,080 |  |  | 439,698 |
Segment gross profit | $ | 162,656 |  |  | $ | 179,372 |  |  | $ | 127,561 |  |  | $ | 469,589 |
Unallocated costs, including share-based compensation, amortization of acquired technology and acquired technology impairments |  |  |  |  |  |  | (13,061) |
Gross profit |  |  |  |  |  |  | $ | 456,528 |
| Fiscal Year Ended January 28, 2024
(in thousands) | Signal Integrity |  | Analog Mixed Signal and Wireless |  | IoT Systems and Connectivity |  | Total
Net sales | $ | 177,033 |  |  | $ | 260,264 |  |  | $ | 431,461 |  |  | $ | 868,758 |
Segment cost of sales | 75,788 |  |  | 113,666 |  |  | 249,956 |  |  | 439,410 |
Segment gross profit | $ | 101,245 |  |  | $ | 146,598 |  |  | $ | 181,505 |  |  | $ | 429,348 |
Unallocated costs, including share-based compensation, amortization of acquired technology and acquired technology impairments |  |  |  |  |  |  | (133,098) |
Gross profit |  |  |  |  |  |  | $ | 296,250 |
| Fiscal Year Ended January 29, 2023
(in thousands) | Signal Integrity |  | Analog Mixed Signal and Wireless |  | IoT Systems and Connectivity |  | Total
Net sales | $ | 298,290 |  |  | $ | 443,239 |  |  | $ | 15,004 |  |  | $ | 756,533 |
Segment cost of sales | 89,780 |  |  | 168,724 |  |  | 9,270 |  |  | 267,774 |
Segment gross profit | $ | 208,510 |  |  | $ | 274,515 |  |  | $ | 5,734 |  |  | $ | 488,759 |
Unallocated costs, including share-based compensation, amortization of acquired technology and acquired technology impairments |  |  |  |  |  |  | (10,201) |
Gross profit |  |  |  |  |  |  | $ | 478,558 |
Geographic Information Net sales activity by geographic region was as follows:
| Fiscal Year Ended
(in thousands, except percentages) | January 26, 2025 |  | January 28, 2024 |  | January 29, 2023
Asia-Pacific | $ | 574,710 |  |  | 64 | % |  | $ | 505,603 |  |  | 58 | % |  | $ | 543,795 |  |  | 72 | %
North America | 204,479 |  |  | 22 | % |  | 237,132 |  |  | 27 | % |  | 109,444 |  |  | 14 | %
Europe | 130,098 |  |  | 14 | % |  | 126,023 |  |  | 15 | % |  | 103,294 |  |  | 14 | %
Total net sales | $ | 909,287 |  |  | 100 | % |  | $ | 868,758 |  |  | 100 | % |  | $ | 756,533 |  |  | 100 | %
The Company attributes sales to a geography based on the ship-to address. The table below summarizes sales activity to geographies that represented greater than 10% of total sales for at least one of the periods presented:
| Fiscal Year Ended
(percentage of total net sales) | January 26, 2025 |  | January 28, 2024 |  | January 29, 2023
China (including Hong Kong) | 43 | % |  | 32 | % |  | 53 | %
United States | 21 | % |  | 24 | % |  | 13 | %
Total net sales | 64 | % |  | 56 | % |  | 66 | %
Although a large percentage of the Company's products is shipped into the Asia-Pacific region, a significant number of the products produced by these customers and incorporating the Company's semiconductor products are then sold outside this region. Long-lived Assets The following table summarizes the Company's long-lived assets, which consist of property, plant and equipment, net of accumulated depreciation, classified by location:
| Balance as of
(in thousands) | January 26, 2025 |  | January 28, 2024
United States | $ | 58,395 |  |  | $ | 67,773 |
Rest of North America | 41,445 |  |  | 52,284 |
Europe | 14,604 |  |  | 18,883 |
Asia and all others | 11,746 |  |  | 14,678 |
Total | $ | 126,190 |  |  | $ | 153,618 |
Some of these assets are at locations owned or operated by the Company’s suppliers. The Company has consigned certain equipment to a foundry based in China to support its specialized processes run at the foundry. The Company has also installed its own equipment at some of its packaging and testing subcontractors in order to ensure a certain level of capacity, assuming the subcontractor has ample employees to operate the equipment. The net book value of equipment and machinery that were consigned to multiple foundries in China was $3.6 million and $5.8 million as of January 26, 2025 and January 28, 2024, respectively. The net book value of equipment and machinery that were consigned to a foundry in Malaysia was $1.8 million and $2.9 million as of January 26, 2025 and January 28, 2024, respectively.

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- Definition The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 48 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482785/280-10-55-48 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards 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