The SSM2603 is a low power audio codec that features a 24-bit stereo analog-to-digital and digital-to-analog converter, a high efficiency headphone amplifier, stereo line input and mono microphone input, low power consumption, and low supply voltage.
The SSM2603 audio codec from Analog Devices combines a 24‑bit stereo ADC and DAC, a programmable gain amplifier, and low‑power operation suitable for portable devices. It supports a wide range of audio sampling rates from 8 kHz up to 96 kHz and can operate from 1.8 V to 3.6 V supply voltages.
The datasheet provides detailed electrical characteristics, pin‑out information, timing diagrams, and package dimensions for the 28‑lead 5 mm × 5 mm LFCSP package. It also includes ESD sensitivity guidelines and revision history. This manual is written in Chinese.
| ADC SNR (A‑weighted) | 90 dB |
|---|---|
| DAC SNR (A‑weighted) | 100 dB |
| Stereo playback power consumption (1.8 V/1.5 V) | 7 mW |
| Stereo playback power consumption (3.3 V) | 22 mW |
| AVDD supply voltage range | 1.8 V – 3.6 V |
| Digital core supply voltage range | 1.5 V – 3.6 V |
| Digital I/O supply voltage range | 1.8 V – 3.6 V |
| Package type | 28‑lead 5 mm × 5 mm LFCSP (QFN) |
| Supported audio sample rates | 8 kHz, 11.025 kHz, 12 kHz, 16 kHz, 22.05 kHz, 24 kHz, 32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz |
The device operates from 1.8 V up to 3.6 V on AVDD, digital core, and digital I/O supplies.
Stereo playback at 1.8 V (or 1.5 V) consumes about 7 mW.
The SSM2603 is offered in a 28‑pin LFCSP package.
It supports 8 kHz, 11.025 kHz, 12 kHz, 16 kHz, 22.05 kHz, 24 kHz, 32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz and 96 kHz.