GENERAL DESCRIPTION

The AD1833A is a complete, high performance, single-chip, multichannel, digital audio playback system. It features six audio playback channels, each comprising a high performance digital interpolation filter, a multibit S-D modulator featuring Analog Devices’ patented technology, and a continuous-time voltage-out analog DAC section. Other features include an on-chip clickless attenuator and mute capability for each channel, programmed through an SPI compatible serial control port.

FEATURES

5 V Stereo Audio System with 3.3 V Tolerant Digital Interface

Supports 96 kHz Sample Rates on 6 Channels and 192 kHz on 2 Channels

Supports 16-/20-/24-Bit Word Lengths

Multibit
- Modulators with Perfect Differential Linearity Restoration for Reduced Idle Tones and Noise Floor

Data Directed Scrambling DACs—Least Sensitive to Jitter

Differential Output for Optimum Performance

DACs Signal-to-Noise and Dynamic Range: 110 dB

   –94 dB THD + N—6-Channel Mode

   –95 dB THD + N—2-Channel Mode

On-Chip Volume Control per Channel with 1024-Step Linear Scale

Software Controllable Clickless Mute

Digital De-emphasis Processing

Supports 256  fS, 512  fS, and 768  fS Master Clock Modes

Power-Down Mode Plus Soft Power-Down Mode

Flexible Serial Data Port with Right-Justified, Left-Justified, I2S Compatible, and DSP Serial Port Modes

Supports Packed Data Mode and TDM Mode

48-Lead LQFP Plastic Package

APPLICATIONS

DVD Video and Audio Players

Home Theater Systems

Automotive Audio Systems

Set-Top Boxes

Digital Audio Effects Processors