AD1838A Datasheet | Analog Devices

FEATURES 5 V Stereo Audio System with 3.3 V Tolerant Digital Interface Supports up to 96 k Hz Sample Rates 192 k Hz 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 d B THD + N, 105 d B SNR and Dynamic Range DACs: - 95 d B THD + N, 108 d B 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 ؋ f S, 512 ؋ f S, and 768 ؋ f S Master Mode Clocks Power-Down Mode Plus Soft Power-Down Mode Flexible Serial Data Port with Right-Justified, Left Justified, I2S patible, and DSP Serial Port Modes TDM Interface Mode Supports 8 In/8 Out Using a Single SHARC ® SPORT 52-Lead MQFP Plastic Package 2 ADC, 6 DAC, 96 k Hz, 24-Bit ⌺-⌬ Codec AD1838A APPLICATIONS DVD Video and Audio Players Home Theater Systems Automotive Audio Systems Audio/Visual Receivers Digital Audio Effects Processors GENERAL DESCRIPTION The AD1838A is a high performance single-chip codec featuring three stereo DACs and one stereo ADC. Each DAC prises 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 prises 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. The AD1838A contains a flexible serial interface that allows glueless connection to a variety of DSP chips, AES/EBU receivers, and sample rate converters. The AD1838A can be configured in left-justified, right-justified, I2S, or DSP patible serial modes. Control of the AD1838A is achieved by means of an...