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Description

General part information

AD1835A Series

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

Technical Specifications

Parameters and characteristics for this part

SpecificationAD1835AASZ
Data InterfaceSerial
Dynamic Range (ADC) Typical (dB)105 dB
Dynamic Range (DAC) Typical (dB)108 dB
Mounting TypeSurface Mount
Number of ADCs2 count
Number of DACs8
Operating Temperature (Max)85 °C
Operating Temperature (Min)-40 °C
Package / Case52-QFP
Package Length10 mm
Package Name52-MQFP
Package Width10 mm
Resolution (Bits)24 b
S/N Ratio (ADCs) (Typical)105 dB
S/N Ratio (DACs) (Typical)108 dB
Sigma DeltaYes
TypeStereo Audio
Voltage - Supply, Analog (Max)5.5 V
Voltage - Supply, Analog (Min)4.5 V
Voltage - Supply, Digital (Max)5.5 V
Voltage - Supply, Digital (Min)4.5 V

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CAD

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