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Segment Information
 3 Months Ended
Apr. 28, 2024
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 Company's major product lines, which represent its operating segments. The Company currently has three operating segments—Signal Integrity, Analog Mixed Signal and Wireless, and IoT Systems and Connectivity—that represent three separate reportable segments.
Prior to the fourth quarter of fiscal year 2024, the Company had four operating segments—Signal Integrity, Advanced Protection and Sensing, IoT Systems and IoT Connected Services. In the fourth quarter of fiscal year 2024, as a result of organizational restructuring, the wireless business, which was previously included in the former IoT Systems operating segment, and the software defined video over ethernet business, which was previously included in the Signal Integrity operating segment, were moved into the Analog Mixed Signal and Wireless operating segment, formerly the Advanced Protection and Sensing operating segment, which also includes the proximity sensing, power and protection businesses. 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:
Three Months Ended
(in thousands)April 28, 2024April 30, 2023
Net sales:
Signal Integrity $58,299 28 %$40,891 17 %
Analog Mixed Signal and Wireless 75,344 37 %59,619 25 %
IoT Systems and Connectivity72,462 35 %136,029 58 %
Total net sales$206,105 100 %$236,539 100 %
Gross profit:
Signal Integrity$34,761 $24,487 
Analog Mixed Signal and Wireless40,704 36,474 
IoT Systems and Connectivity27,094 53,808 
Unallocated costs, including share-based compensation and amortization of acquired technology(2,967)(11,823)
Total gross profit$99,592 $102,946 
Geographic Information
Net sales activity by geographic region was as follows:
 Three Months Ended
(percentage of total net sales)April 28, 2024April 30, 2023
Asia-Pacific64 %54 %
North America22 %31 %
Europe14 %15 %
100 %100 %
The Company attributes sales to a country 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:
 Three Months Ended
(percentage of total net sales)April 28, 2024April 30, 2023
China (including Hong Kong)43 %24 %
United States21 %28 %
Although a large percentage of the Company's products is shipped into the Asia-Pacific region, a significant number of products produced by these customers and incorporating the Company's semiconductor products are then sold outside this region.
Sales by Revenue Type
Net sales by revenue type were as follows:
Three Months Ended
(in thousands)April 28, 2024April 30, 2023
Net sales:
Product sales$177,488 86 %$207,381 88 %
Service revenue28,617 14 %29,158 12 %
Total net sales$206,105 100 %$236,539 100 %