AD1838A is an audio codec with a 5V stereo audio system and a 3.3V tolerant digital interface. It supports up to 96kHz sample rates with 16-bit, 20-bit, and 24-bit word lengths. The codec features multibit modulators for reduced idle tones and noise floor. It has high-performance ADCs and DACs with volume control and digital de-emphasis processing. The codec supports multiple clock modes and power-down modes. It also has a flexible serial data port.
The AD1838A is a single-chip audio codec designed for applications such as DVD players, home theater systems, and automotive audio. It integrates three stereo digital-to-analog converters (DACs) and one stereo analog-to-digital converter (ADC), each featuring multibit sigma-delta modulators with Analog Devices' patented technology to reduce idle tones.
The device supports sample rates up to 96 kHz for all channels, with an additional 192 kHz rate available on the DAC. It includes flexible serial interfaces compatible with various DSP chips and AES/EBU receivers, operating from a single 5 V supply or separate digital supplies.
| DAC Resolution | 24 Bits |
|---|---|
| Dynamic Range (ADC) | 105 dB |
| Total Harmonic Distortion + Noise (THD+N) | -95 dB |
| Supply Voltage | 5 V |
| Operating Temperature Range | -40°C to +85°C |
The device supports up to 96 kHz sample rates, with a 192 kHz rate available on one DAC.
The ADC offers a dynamic range of 105 dB with an A-Weighted Filter.