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PCM1740E

94dB SNR Stereo DAC with Programmable PLL&VCXO

Packaging

Package | PIN: DB | 24
Temp:
Carrier: Partial Tube
Qty Price
1-9 $9.57
10-24 $8.61
25-99 $8.04
100-249 $7.21
250-499 $6.73
500-749 $5.85
750-999 $5.07
1000+ $4.97

Features

  • COMPLETE DELTA-SIGMA STEREO DAC
  • VOLTAGE-CONTROLLED CRYSTAL OSCILLATOR:
    • 27MHz ±150ppm Output with 0V to 3V Input
  • PROGRAMMABLE PLL
    • 256fS or 384fS Audio System Clock Output
  • DYNAMIC PERFORMANCE:
    • Dynamic Range: 94dB
    • SNR: 94dB
    • THD+N: 89dB
  • SAMPLING FREQUENCIES:
    • 16kHz, 22.05kHz, 24kHz
    • 32kHz, 44.1kHz, 48kHz
    • 64kHz, 88.2kHz, 96kHz
  • SERIAL AUDIO INTERFACE:
    • Standard or I2S™ Data Formats
    • 16-, 20-, or 24-Bit Data
  • I2C-BUS™ INTERFACE FOR CONTROL REGISTERS:
    • Slave Receiver Operation
    • 7-Bit Addressing
    • Standard Transfer Rate (up to 100kbps)
  • PROGRAMMABLE CONTROLS:
    • Digital Attenuation (256 steps)
    • Soft Mute
    • Infinite Zero Detect Mute
    • De-Emphasis (32kHz, 44.1kHz, 48kHz)
    • DAC Output Mode
  • SINGLE +5V SUPPLY
  • SMALL SSOP-24 PACKAGE
  • APPLICATIONS
    • SET-TOP BOXES
    • DIGITAL BROADCAST RECEIVERS

SoundPLUS is a trademark of Texas Instruments.
I2C-Bus, I2C, and I2S are trademarks of NXP B.V.
All other trademarks are the property of their respective owners.

Texas Instruments  PCM1740E

The PCM1740 is a complete stereo audio digital-to-analog converter with on-chip PLL and VCXO. The PCM1740 is designed specifically for set-top box applications requiring high-quality audio playback, a precision tuned 27MHz master clock source, and support for multiple audio-sampling frequencies.

The stereo digital-to-analog converter (DAC) uses multibit, delta-sigma architecture, which includes an 8x interpolation filter, 3rd-order noise shaping, 5-level amplitude quantization, and an analog low-pass filter. The PCM1740 includes a number of user-programmable functions, which are accessed via a standard I2C-Bus interface.