PCM1754 106-dB SNR stereo audio digital-to-analog converter (DAC) (hardware control) | TI.com

PCM1754 (ACTIVE) 106-dB SNR stereo audio digital-to-analog converter (DAC) (hardware control)

 

Description

The PCM1753, PCM1754, and PCM1755 (PCM175x) devices are stereo digital-to-analog converters (DACs) based on TI’s enhanced delta-sigma architecture. This enhanced architecture employs 4th-order noise shaping and 8-level amplitude quantization to achieve excellent dynamic performance and improved clock jitter tolerance. The PCM175x devices easily interface with audio DSP and decoder chips because of the devices support of industry-standard audio data formats with 16-bit and 24-bit data. The PCM175x devices can be controlled in a hardware mode, or through a full set of user-programmable functions that are accessible through a three-wire serial control port that supports register-write functions.

The PCM1753 is pin compatible with the PCM1748, PCM1742, and PCM1741, except for pin 5.

Features

  • 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
    • Soft mute
    • Zero flag for L-, R-channel common output
  • Power supply: 5-V single supply
  • Small 16-lead SSOP package, lead-free

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Parametrics

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Part number Order DAC channels Analog inputs Analog outputs DAC SNR (Typ) (dB) Sampling rate (Max) (kHz) Control interface Resolution (Bits) Architecture Package size: mm2:W x L (PKG) Approx. price (US$)
PCM1754 Order now 2     0     2     106     192     H/W     24     Delta-Sigma     16SSOP: 29 mm2: 6 x 4.9 (SSOP | 16)     0.89 | 1ku