●The PCM2912A is the Texas Instruments single-chip, USB stereo audio codec with a USB, 2.0-compliant, full-speed protocol controller and an analog front-end (AFE) function for headset applications.
●The USB protocol controller works with no software code, but USB descriptors can be modified on request. The PCM2912A employs SpAct™ architecture, TIs unique system that recovers the audio clock from USB packet data. On-chip analog PLLs with SpAct enables independent playback and record sampling rates with low clock jitters.
● On-Chip USB Interface:
● With Full-Speed Transceivers
● Fully Compliant With USB 2.0 Specification
● Certified By USB-IF
● Partially Programmable Descriptors
● Adaptive Isochronous Transfer for Playback
● Asynchronous-Isochronous Transfer for
●Record
● Bus Powered
● 16-Bit Delta-Sigma ADC and DAC
● Sampling Rate:
● 8, 11.025, 16, 22.05, 32, 44.1, or 48 kHz
● On-Chip Clock Generator:
● With Single 6-MHz Clock Source
● Mono ADC with Microphone Input
● Analog Performance at VBUS = 5 V:
● THD+N: 0.01%
● SNR: 92 dB
● Dynamic Range: 90 dB
● Decimation Digital Filter
● Passband Ripple: ±0.05 dB
● Stop-Band Attenuation: 65 dB
● Single-Ended Voltage Input
● Antialiasing Filter Included
● Digital HPF Included
● Microphone Bias, Microphone Amplifier, and
●Input PGA
● Stereo DAC With Headphone Output
● Analog Performance at VBUS = 5.0 V:
● THD+N: 0.01% (RL > 10 kΩ)
● THD+N: 0.02% (RL = 32 Ω)
● SNR: 92 dB
● Dynamic Range: 90 dB
● PO: 13 mW (RL = 32 Ω)
● PO: 25 mW (RL = 16 Ω)
● Oversampling Digital Filter
● Passband Ripple: ±0.1 dB
● Stop-Band Attenuation: 43 dB
● Single-Ended Voltage Output
● Analog LPF Included
● Sidetone PGA, Output PGA, and HP
●Amplifier
● Multifunctions:
● Suspend, Playback, and Record Status Flag
● Microphone Amplifier, Mute, and Gain Control
● Pop/Click Noise-Free
● Single Power-Supply: 5 V Typical (VBUS)
● Package: 32-Pin TQFP
Part 3D Model
