AD1837A is a 2-channel ADC and 8-channel DAC audio codec, supporting 5V power supply, supporting 16-, 20-, 24-bit data, maximum sampling rate up to 96kHz, supporting 192kHz sampling rate of a single DAC, using multi-bit differential linearity restoration technology, reducing idle tone and noise floor, data-directed scrambling DAC makes it least sensitive to jitter, single-ended output, ADC's THD+N is -95dB, SNR and dynamic range is 105dB, DAC's THD+N is -92dB, SNR and dynamic range is 108dB, each channel has 1024 steps of linear scale volume control, DAC and ADC can be controlled by software to mute, support digital de-emphasis processing, support 256� fS, 512� fS, 768� fS master mode clock, support standby mode and soft standby mode, flexible serial data port, support right alignment, left alignment, I2S compatible and DSP serial port mode, support TDM interface.
The AD1837A is a high-performance single-chip codec designed for use in DVD players, home theater systems, and automotive audio applications. It features four stereo digital-to-analog converters (DACs) and one stereo analog-to-digital converter (ADC). Each DAC includes independent volume control and clickless mute functions, while the ADC comprises two 24-bit conversion channels.
| DAC Resolution | 24 Bits |
|---|---|
| Dynamic Range (ADC) | 105 dB |
| Total Harmonic Distortion + Noise (ADC) | -95 dB |
| Dynamic Range (DAC) | 108 dB |
| Total Harmonic Distortion + Noise (DAC) | -92 dB |
| Operating Temperature Range | -40°C to +85°C |
| Package Description | 52-Lead MQFP |
The device supports up to 96 kHz sample rates, with a 192 kHz sample rate available on one DAC.
The full-scale output voltage ranges from 1.0 Vrms (2.8 V p-p) in single-ended mode.
Yes, it features a separate supply pin for its digital interface to allow interfacing with devices using 3.3 V power supplies.