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PCM1740

LAST TIME BUY

94dB SNR Stereo DAC with Programmable PLL&VCXO

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Data sheet
PCM1740 is in the process of being discontinued
This product is in the process of being discontinued. New designs should consider an alternate product.
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Same functionality with different pin-out to the compared device
PCM5100A ACTIVE 2VRMS DirectPath™, 100dB Audio Stereo DAC with 32-bit, 384kHz PCM Interface Newer version for cost-sensitive designs

PCM1740

LAST TIME BUY
Data sheet Order now

Product details

Number of DAC channels 2 Sampling rate (min) (kHz) 16 Sampling rate (max) (kHz) 96 THD+N (dB) -89 Control interface I2C Resolution (Bits) 24 DAC SNR (typ) (dB) 94 Analog outputs 2 Architecture Delta-Sigma Operating temperature range (°C) to Rating Catalog
Number of DAC channels 2 Sampling rate (min) (kHz) 16 Sampling rate (max) (kHz) 96 THD+N (dB) -89 Control interface I2C Resolution (Bits) 24 DAC SNR (typ) (dB) 94 Analog outputs 2 Architecture Delta-Sigma Operating temperature range (°C) to Rating Catalog
SSOP (DB) 24 63.96 mm² 8.2 x 7.8
  • 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.
  • 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.

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.

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.
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* Data sheet SoundPlus™ Stereo Audio Digital-to-Analog Converter with VCXO and PLL datasheet (Rev. B) 18 May 2007

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