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Audio Codec

Portable audio applications with a mono codec
CJC8910

CJC8910 is a low-power and high-quality codec, which is specially designed for portable digital audio applications. The chip integrates a complete interface to a monophonic earphone or power amplifier. Because there is no need for a separate earphone amplifier, the requirement for external components is greatly reduced. Advanced on-chip digital signal processing performs automatic level control of audio equalizer, microphone or line input. CJC8910 can operate as a master or a slave, and has various master clock frequencies, including 12MHz or 24MHz for USB devices, or standard 256fs frequencies such as 12.288MHz and 24.576MHz. Different audio sampling rates (such as 96kHz, 48kHz, 44.1kHz ...) can be directly generated by the master clock without an external phase-locked loop.

Product detail

DAC SNR 95dB (‘A’ weighted), THD –85.2dB at 48kHz, 1.8V 

ADC SNR 97.7dB (‘A’ weighted), THD -87dB at 48kHz, 1.8V Programmable ALC / Noise Gate On-chip Headphone Drivers -THD –79.5dB , SNR 96dB, 1.8V 

Low Power 

-7mW stereo playback (1.8V supplies) 

-13mW record and playback (1.8V supplies) 

Low Supply Voltages 

-Analogue 1.8V to 3.3V 

-Digital core: 1.5V to 3.3V 

-Digital I/O: 1.8V to 3.3V 

256fs / 384fs or USB master clock rates: 12MHz, 24MHz 

Audio sample rates: 8kHz, 11.025kHz, 16kHz, 22.05kHz, 24kHz, 32kHz, 44.1kHz, 48kHz, 88.2kHz, 96kHz generated internally from           master clock 

3x3mm COL package