Product Summary

The AD1835 is a high performance, single-chip codec featuring four 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 AD1835 also contains an on-chip reference with a nominal value of 2.25 V. The AD1835 contains a flexible serial interface that allows for glueless connection to a variety of DSP chips, AES/EBU receiv- f Master S ers, and sample rate converters. The AD1835 can be configured in left-justified, right-justified, I modes. Control of the AD1835 is achieved by means of an SPI compatible serial port. While the AD1835 can be operated from a single 5 V supply, it also features a separate supply pin for its digital interface that allows the device to be interfaced to other devices using 3.3 V power supplies.

Parametrics

Specifications of AD1835ASZ
Single Supply Voltage (typ) 3.3/5V Single Supply Voltage (min) 3/4.5V
Single Supply Voltage (max) 5.5V Package Type MQFP
Lead Free Status / RoHS Status Compliant  

Features

FEATURES5 V Stereo Audio System with 3.3 V TolerantDigital InterfaceSupports up to 96 kHz Sample Rates192 kHz Sample Rate Available on One DACSupports 16-/20-/24-Bit Word LengthsMultibit - Modulators withPerfect Differential Linearity Restoration forReduced Idle Tones and Noise FloorData Directed Scrambling DACs—LeastSensitive to JitterDifferential Output for Optimum PerformanceADCs: –95 dB THD + N, 105 dB SNR andDynamic RangeDACs: –95 dB THD + N, 108 dB SNR andDynamic RangeOn-Chip Volume Controls per Channel with1024-Step Linear ScaleDAC and ADC Software Controllable Clickless MutesDigital De-emphasis ProcessingSupports 256f, 512f, and 768SSMode ClocksPower-Down Mode Plus Soft Power-Down ModeFlexible Serial Data Port with Right-Justified, Left-2Justified, IS Compatible, and DSP Serial Port ModesTDM Interface Mode Supports 8 In/8 Out Using a?Single SHARCSPORT52-Lead MQFP Plastic Package

Diagrams