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Goodwill and Intangible Assets
 3 Months Ended
Apr. 28, 2024
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill and Intangible Assets Goodwill and Intangible Assets
Goodwill
The carrying amounts of goodwill by applicable operating segment were as follows:
(in thousands)Signal Integrity
Analog Mixed Signal and Wireless
IoT Systems and ConnectivityTotal
Balance at January 28, 2024$267,205 $83,101 $190,921 $541,227 
Cumulative translation adjustment— — (304)(304)
Balance at April 28, 2024$267,205 $83,101 $190,617 $540,923 
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. There was no change to the reporting units. See Note 15, Segment Information, for further discussion of the Company's operating segments.
Goodwill is not amortized, but is tested for impairment at the reporting unit level using either a qualitative or quantitative assessment on an annual basis during the fourth quarter of each fiscal year, and whenever events or changes in circumstances indicate that the carrying value may not be recoverable. Impairment of goodwill is measured at the reporting unit level by comparing the reporting unit’s carrying amount, including goodwill, to the fair market value of the reporting unit. As of April 28, 2024, there was no indication of impairment of the Company's goodwill balances.
Purchased and Other Intangibles
The following table sets forth the Company’s finite-lived intangible assets resulting from business acquisitions, which are amortized over their estimated useful lives:
 April 28, 2024
(in thousands, except estimated useful life)Estimated
Useful Life		Gross
Carrying
Amount		Accumulated
Amortization		Accumulated ImpairmentNet Carrying
Amount
Core technologies
1-8 years
$154,683 $(37,186)$(91,792)$25,705 
Customer relationships
1-10 years
52,061 (13,310)(34,777)3,974 
Trade name
2-10 years
9,000 (2,893)(4,816)1,291 
Total finite-lived intangible assets$215,744 $(53,389)$(131,385)$30,970 
January 28, 2024
(in thousands, except estimated useful life)Estimated
Useful Life		Gross
Carrying
Amount		Accumulated
Amortization		Accumulated ImpairmentNet Carrying
Amount
Core technologies
1-8 years
$154,985 $(35,130)$(91,792)$28,063 
Customer relationships
1-10 years
52,272 (13,391)(34,777)4,104 
Trade name
2-10 years
9,000 (2,700)(4,816)1,484 
Total finite-lived intangible assets$216,257 $(51,221)$(131,385)$33,651 
Amortization expense of finite-lived intangible assets was as follows:
Three Months Ended
(in thousands)April 28, 2024April 30, 2023
Core technologies$2,281 $10,855 
Customer relationships114 4,090 
Trade name193 792 
Total amortization expense$2,588 $15,737 
Amortization expense of finite-lived intangible assets related to core technologies was recorded in "Amortization of acquired technology" within "Total cost of sales" in the Statements of Operations and amortization expense of finite-lived intangible assets related to customer relationships and trade name was recorded in "Intangible amortization" within "Total operating expenses, net" in the Statements of Operations.
Future amortization expense of finite-lived intangible assets is expected as follows:
(in thousands)Core TechnologiesCustomer RelationshipsTrade NameTotal
2025 (remaining nine months)$6,817 $342 $233 $7,392 
20268,594 456 133 9,183 
20273,703 456 133 4,292 
20283,546 456 133 4,135 
20293,045 382 133 3,560 
Thereafter— 1,882 526 2,408 
Total expected amortization expense$25,705 $3,974 $1,291 $30,970 
Also in "Other intangible assets, net" in the Balance Sheets, are finite-lived intangible assets to be amortized upon placement in service. The following table sets forth the Company’s finite-lived intangible assets not yet placed in service:
(in thousands)Capitalized Development CostsSoftware LicensesTotal
Value at January 28, 2024$1,000 $915 $1,915 
Additions451 1,750 2,201 
Value at April 28, 2024$1,451 $2,665 $4,116