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106-dB SNR stereo audio digital-to-analog converter (DAC) (hardware control)


Features for the PCM1754


  • 24-bit resolution
  • Analog performance (VCC = 5 V)
    • Dynamic range: 106 dB
    • SNR: 106 dB, typical
    • THD+N: 0.002%,typical
    • Full-scale output: 4 VPP,typical
  • 4× or 8× oversampling digital filter
    • Stop-band attenuation: –50 dB
    • Pass-band ripple:±0.04 dB
  • Sampling frequency: 5 kHz to 200 kHz
  • System clock: 128 fS, 192 fS, 256 fS, 384 fS, 512 fS, 768 fS, 1152 fS with auto detect
  • Hardware control (PCM1754)
    • I2S and 16-bit word,right-justified
    • 44.1 kHz digital de-emphasis
    • Softmute
    • Zero flag for L-, R-channel commonoutput
  • Power supply: 5-V single supply
  • Small 16-lead SSOP package, lead-free


Description for the PCM1754


The PCM1753, PCM1754, and PCM1755 (PCM175x) devices are stereo digital-to-analogconverters (DACs) based on TI’s enhanced delta-sigma architecture. This enhanced architectureemploys 4th-order noise shaping and 8-level amplitude quantization to achieve excellent dynamicperformance and improved clock jitter tolerance. The PCM175x devices easily interface with audioDSP and decoder chips because of the devices support of industry-standard audio data formats with16-bit and 24-bit data. The PCM175x devices can be controlled in a hardware mode, or through a fullset of user-programmable functions that are accessible through a three-wire serial control portthat supports register-write functions.

The PCM1753 is pin compatible with the PCM1748, PCM1742, and PCM1741, except for pin5.