GENERAL DESCRIPTION
The AD1838A is a high performance single-chip codec featuring three stereo DACs and one stereo ADC. Each DAC comprises a high performance digital interpolation filter, a multibit
- modulator featuring Analog Devices’ patented technology, and a continuous-time voltage out analog section. Each DAC has independent volume control and clickless mute functions. The ADC comprises two 24-bit conversion channels with multibit
- modulators and decimation filters.
The AD1838A also contains an on-chip reference with a nominal value of 2.25 V.

FEATURES
    5 V Stereo Audio System with 3.3 V Tolerant Digital Interface
    Supports up to 96 kHz Sample Rates
    192 kHz Sample Rate Available on 1 DAC
    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
      ADCs: –95 dB THD + N, 105 dB SNR and Dynamic Range
      DACs: –95 dB THD + N, 108 dB SNR and Dynamic Range
    On-Chip Volume Controls per Channel with 1024 Step Linear Scale
    DAC and ADC Software Controllable Clickless Mutes
    Digital De-emphasis Processing
    Supports 256 fS, 512 fS, and 768 fS Master Mode Clocks
    Power-Down Mode Plus Soft Power-Down Mode
    Flexible Serial Data Port with Right-Justified, Left Justified, I2S Compatible, and DSP Serial Port Modes
    TDM Interface Mode Supports 8 In/8 Out Using a Single SHARC® SPORT
    52-Lead MQFP Plastic Package

APPLICATIONS
    DVD Video and Audio Players
    Home Theater Systems
    Automotive Audio Systems
    Audio/Visual Receivers
    Digital Audio Effects Processors