A 24-bit sigma-delta audio codec integrates one stereo ADC and four stereo DAC pairs for multichannel audio systems. The device supports sample rates up to 96 kHz, with a 192 kHz mode available on one DAC pair, and accepts 16-bit, 20-bit, or 24-bit audio words. It operates from 5 V analog and digital supplies and provides a separate digital interface supply for 3.3 V-compatible logic. The serial audio interface supports left-justified, right-justified, I2S-compatible, DSP, and TDM operating modes, while control is provided through an SPI-compatible port. The device is specified over the industrial temperature range and is housed in a 52-lead MQFP plastic package.
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| Converter Type | 2 ADC, 8 DAC audio codec |
| ADC Resolution | 24bits |
| DAC Resolution | 24bits |
| Maximum ADC Sample Rate | 96kHz |
| Maximum DAC Sample Rate | 96kHz |
| DAC 192 kHz Mode | Available on one DAC pair |
| Supported Word Lengths | 16, 20, 24bits |
| ADC Dynamic Range, A-Weighted | 105dB |
| DAC Dynamic Range, A-Weighted | 108dB |
| ADC THD+N | -95 typdB |
| DAC THD+N | -95 typdB |
| ADC Differential Input Range | -2.828 to +2.828 full scaleV |
| Reference Voltage | 2.25 typV |
| AVDD and DVDD Supply Voltage | 4.5 to 5.5V |
| ODVDD Interface Supply Voltage | 3.0 to DVDDV |
| Operating Power Dissipation | 740 typ, both suppliesmW |
| Digital Input High Voltage | 2.4 minV |
| Digital Input Low Voltage | 0.8 maxV |
| Serial Audio Modes | Right-justified, left-justified, I2S-compatible, DSP, TDM |
| Operating Temperature Range | -40 to +85°C |
| Package | 52-lead MQFP |
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These are design resources that include the Analog Devices AD1835A
Evaluation system manual for the ADSP-21369 SHARC processor, featuring the AD1835A audio codec, SDRAM, SRAM, and flash memory for audio application development.
