The PCM2902EG4 is a stereo USB1.1 CODEC with line-out and S/PDIF I/O, bus-powered. The USB protocol controller works with no software code, but the USB descriptors can be modified in some areas. The PCM2902 employs SpAct? architecture, its unique system that recovers the audio clock from USB packet data. On-chip analogue PLLs with SpAct architecture enable playback and record with low clock jitter and with independent playback and record sampling rates.
On-chip USB interface
Partially programmable descriptors
USB Adaptive mode for playback
On-chip clock generator with single 12MHz clock source
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