ADI SSM2603音频CODEC解决方案

ADI 公司的SSM2603是低功耗高质量立体声音频CODEC,具有两个24位ADC和两个DAC通路,可工作在主或从模式,模拟工作电压1.8V-3.6V,数字核电压1.5V-3.6V,数字I/O电压1.8V-3.6V,3.3V和48kHz的DAC SNR为100dB(A加权),THD为-80dB而ADC的SNR为100dB(A加权),THD为-80dB,主要用在手机,MP3播放器,,手提游戏机,手持电子设备和教育玩具.本文介绍了SSM2603主要特性, 方框图, 典型应用电路图以及音频CODEC评估板EVAL-SSM2603主要特性,电路图,材料清单和PCB布局图.
The SSM2603 is a low power, high quality stereo audio codec for portable digital audio applications with one set of stereo programmable gain amplifier (PGA) line inputs and one monaural microphone input. It features two 24-bit analog-to- digital converter (ADC) channels and two 24-bit digital-to- analog (DAC) converter channels. The SSM2603 can operate as a master or a slave. It supports various master clock frequencies, including 12 MHz or 24 MHz for USB devices; standard 256 fS or 384 fS based rates, such as 12.288 MHz and 24.576 MHz; and many common audio sampling rates, such as 96 kHz, 88.2 kHz, 48 kHz, 44.1 kHz, 32 kHz, 24 kHz, 22.05 kHz, 16 kHz, 12 kHz, 11.025 kHz, and 8 kHz. The SSM2603 can operate at power supplies as low as 1.8 V for the analog circuitry and as low as 1.5 V for the digital circuitry. The maximum voltage supply is 3.6 V for all supplies. The SSM2603 software-programmable stereo output options provide the user with many application possibilities. Its volume control functions provide a large range of gain control of the audio signal. The SSM2603 is specified over the industrial temperature range of −40℃ to +85℃. It is available in a 28-lead, 5 mm × 5 mm lead frame chip scale package (LFCSP).
SSM2603主要特性:
Stereo, 24-bit analog-to-digital and digital-to-analog converters
DAC SNR: 100 dB (A-weighted), THD: −80 dB at 48 kHz, 3.3 V
ADC SNR: 90 dB (A-weighted), THD: −80 dB at 48 kHz, 3.3 V
Highly efficient headphone amplifier
Stereo line input and monaural microphone input
Low power
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