PRODUCT OVERVIEW

The AD1836A is a high performance, single-chip codec that provides three stereo DACs and two stereo ADCs using ADI’s patented multibit Σ-∆ architecture. An SPI® port is included, allowing a microcontroller to adjust volume and many other parameters. The AD1836A operates from a 5 V supply, with provision for a separate output supply to interface with low voltage external circuitry. The AD1836A is available in a 52-lead MQFP (PQFP) package.

FEATURES

5 V multichannel audio system

Accepts 16-/18-/20-/24-bit data

Supports 24-bit and 96 kHz sample rate

Multibit Σ-∆ modulators with data directed

scrambling

Differential output for optimum performance

ADCs: –92 dB THD + N, 105 dB SNR and dynamic range

DACs: –95 dB THD + N, 108 dB SNR and dynamic range

On-chip volume control with auto-ramp function

Programmable gain amplifier for ADC input

Hardware and software controllable clickless mute

Digital de-emphasis processing

Supports 256 × fS, 512 × fS, or 768 × fS master clock

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 (PQFP) plastic package

APPLICATIONS

Home theater systems

Automotive audio systems

DVD recorders

Set-top boxes

Digital audio effects processors