AD1835A Series

2 ADC, 8 DAC, 96kHz, 24-Bit Sigma Delta Codec

Catalog

2 ADC, 8 DAC, 96kHz, 24-Bit Sigma Delta Codec

Part	Type	Mounting Type	Package / Case	Voltage - Supply, Digital [Max]	Voltage - Supply, Digital [Min]	Operating Temperature [Max]	Operating Temperature [Min]	Number of ADCs / DACs [custom]	Number of ADCs / DACs [custom]	Resolution (Bits)	Sigma Delta	S/N Ratio, ADCs / DACs (db) Typ [custom]	S/N Ratio, ADCs / DACs (db) Typ [custom]	Dynamic Range, ADCs / DACs (db) Typ [custom]	Dynamic Range, ADCs / DACs (db) Typ [custom]	Voltage - Supply, Analog [Max]	Voltage - Supply, Analog [Min]	Data Interface	Supplier Device Package
Analog Devices AD1835AAS-REEL	Stereo Audio	Surface Mount	52-QFP	5.5 V	4.5 V	85 °C	-40 °C	2	8	24 b		105 db	108 db	108 dB	105 dB	5.5 V	4.5 V	Serial	52-MQFP (10x10)
Analog Devices AD1835AASZ-REEL	Stereo Audio	Surface Mount	52-QFP	5.5 V	4.5 V	85 °C	-40 °C	2	8	24 b		105 db	108 db	108 dB	105 dB	5.5 V	4.5 V	Serial	52-MQFP (10x10)

Catalog

2 ADC, 8 DAC, 96kHz, 24-Bit Sigma Delta Codec

Key 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 one DAC

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

• Multibit Sigma-Delta Modulators with "Perfect Differential Linearity Restoration"

• 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 x fS, 512 x fS, and 768 x fSMaster Mode Clocks

• Power-Down Mode Plus Soft Power-Down Mode

Description

The AD1835A 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 multi-bit sigma-delta 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 multi-bit sigma-delta modulators and decimation filters.The AD1835A also contains an on-chip reference with a nominal value of 2.25 V.The AD1835A contains a flexible serial interface that allows for glueless connection to a variety of DSP chips, AES/EBU receivers and sample rate converters. The AD1835A can be configured in Left-Justified, Right-Justified, I2S or DSP compatible serial modes. Control of the AD1835 is achieved by means of an SPI compatible serial port. While the AD1835A can be operated from a single 5 V supply, it also features a separate supply pin for its digital interface, which allows the device to be interfaced to other devices using 3.3 V power supplies.The AD1835A is available in a 52 Lead MQFP package and is specified for the industrial temperature range of -40ºC to +85ºC.APPLICATIONSDVD Video and Audio PlayersHome Theater SystemsAutomotive Audio SystemsAudio/Visual ReceiversDigital Audio Effects Processors