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PCM2912APJT

Audio CODEC with USB Interface, Mono Microphone Input and Stereo Headphone Output

Packaging

Package | PIN: PJT | 32
Temp: S (-25 to 85)
Carrier: Partial Tray
Qty Price
1-9 $10.43
10-24 $9.70
25-99 $9.36
100-249 $8.18
250-499 $7.78
500-749 $7.16
750-999 $6.43
1000+ $6.41

Features

  • 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

Texas Instruments  PCM2912APJT

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, TI’s 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.