1 Features

• 24-Bit Delta-Sigma DAC
• 8-Channel DAC:
  • High Performance: Differential, f_S = 48 kHz
  • THD+N: –94 dB
  • SNR: 113 dB
  • Dynamic Range: 113 dB
  • Sampling Rate: 8 kHz to 192 kHz
  • System Clock: 128 f_S, 192 f_S, 256 f_S, 384 f_S, 512 f_S, 768 f_S, 1152 f_S
  • Differential Voltage Output: 8 V_PP
  • Analog Lowpass Filter Included
  • 4x/8x Oversampling Digital Filter:
    • Passband Ripple: ±0.0018 dB
    • Stop Band Attenuation: –75 dB
  • Zero Flag
• Flexible Audio Interface:
  • I/F Format: I2S™, Left-/Right-Justified, DSP, TDM
  • Data Length: 16, 20, 24, 32 Bits
• Flexible Mode Control:
  • 3-Wire SPI, 2-Wire I²C-Compatible Serial Control Interface, or
    Hardware Control
• Multiple Functions Through SPI or I²C I/F:
  • Audio I/F Format Select: I²S, Left-Justified, Right-Justified, DSP, TDM
  • Digital Attenuation and Soft Mute
  • Digital De-Emphasis: 32 kHz, 44.1 kHz, 48 kHz
  • Data Polarity Control
  • Power Down
• Multiple Functions Through H/W Control:
  • Audio I/F Format Select: I²S, TDM
  • Digital De-Emphasis Filter: 44.1 kHz
• Analog Mute by Clock Halt Detection
• External RESET Pin
• Power Supplies:
  • 5 V for Analog and 3.3 V for Digital
• Package: HTSSOP-48
• Operating Temperature Range:
  • –40°C to +85°C

2 Applications

• Blu-ray™ DVD Players
• HD DVD Players
• AV Receivers
• Home Theaters
• Car Audio External Amplifiers
• Car Audio AVN Applications

3 Description

The PCM1690 device is a high-performance, single-chip, 24-bit, eight-channel, audio digital-to-analog converter (DAC) with differential outputs. The eight-channel, 24-bit DAC employs an enhanced, multi-level delta-sigma (ΔΣ) modulator and supports 8-kHz to 192-kHz sampling rates and a 16-/20-/24-/32-bit width digital audio input word on the audio interface. The audio interface of the PCM1690 supports the time-division-multiplexed (TDM) format in addition to the standard I²S, left-justified, right-justified, and DSP formats.

The PCM1690 can be controlled through a three-wire, SPI-compatible interface, or two-wire, I²C-compatible serial interface in software, which provides access to all functions including digital attenuation, soft mute, de-emphasis, and so forth. Also, hardware control mode provides a subset of user-programmable functions through two control pins. The PCM1690 is available in a 12-mm × 8-mm (12-mm × 6-mm body) HTSSOP-48 package.

1. For all available packages, see the orderable addendum at the end of the data sheet.

Simplified Application Diagram

4 Revision History

Changes from A Revision (January 2009) to B Revision

• Added Pin Configuration and Functions section, ESD Ratings table, Feature Description section, Device Functional Modes, Application and Implementation section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and Mechanical, Packaging, and Orderable Information section Go

Changes from * Revision (October 2008) to A Revision

• Changed Figure 41Go