The PCM2704/5/6/7 is TI's single-chip USB stereo audio DAC with USB-compliant full-speed protocol controller and S/PDIF. The USB-protocolcontroller works with no software code, but USB descriptors can be modified in some parts (for example, vendor ID/product ID) through the use of an external ROM (PCM2704/6), SPI (PCM2705/7), or on request. The modification of the USB descriptor through external ROM or SPI must comply with USB-IF guidelines, and the vendor ID must be your own ID as assigned by the USB-IF. The descriptor also can be modified by changing a mask; contact your representative for details. The PCM2704/5/6/7 employs SpAct architecture, TI's unique system that recovers the audio clock from USB packet data. On-chip analog PLLs with SpAct enable playback with low clock jitter.
|Part number||Order||DAC channels||Analog inputs||Analog outputs||DAC SNR (Typ) (dB)||Sampling rate (Max) (kHz)||Control interface||Resolution (Bits)||Package size: mm2:W x L (PKG)||Approx. price (US$)|
|16||32TQFP: 81 mm2: 9 x 9 (TQFP | 32)||3.60 | 1ku|
|PCM2704||Samples not available||0||0||2||0||48||HID||16||28SSOP: 54 mm2: 5.3 x 10.2 (SSOP | 28)||3.01 | 1ku|
|PCM2705||Samples not available||0||0||2||0||48||
|16||28SSOP: 54 mm2: 5.3 x 10.2 (SSOP | 28)||3.10 | 1ku|