Cjc8988 Low Power Stereo codec with 2 stereo headphone drivers

Codec chip - CJC8988 It is a low power , High quality stereo codec , Can directly Pin to Pin replace WM8988, Designed for portable digital audio applications . The device integrates a complete interface to 2 Stereo headphones or line out ports . The requirements for external components are greatly reduced , Because you don't need a separate Headphone Amplifier . Advanced on-chip digital signal processing implements graphic equalizers , Microphone or line input for 3D sound enhancement and automatic level control .

CJC8988 It can operate as a master or a slave , It has various master clock frequencies , Include 12 or 24MHz, Or standard 256fs frequency , Such as 12.288MHz and 24.576MHz. Different audio sampling rates , Such as 96 kHz,48 kHz,44.1 kHz, Directly from the master clock , Without an external PLL.
CJC8988 When the supply voltage drops to 1.8V Work at the same time , Although the digital core can be reduced to 1.5V To save electricity , And the maximum voltage of all power supplies is 3.3 v . Different parts of the chip can also be powered off under software control .CJC8988 Provides a very small and thin 4x4mmCOL package , Ideal for handheld and portable systems .

Codec chip - CJC8988 Characteristics of ：
DAC Signal-to-noise ratio 93 dB(“A” weighting ),T hd -87dB stay 48 kHz,1.8V
ADC Signal-to-noise ratio 91 dB(“A” weighting ),THD-81dB stay 48 kHz,1.8V
2 Headphone driver on a chip
-THD-78dB, Signal-to-noise ratio 93 dB,16Ω load Hz,1.8V
Digital graphic equalizer
Low power （ Microscope ）
-7.8mW Stereo player （1.8V Power Supply ）
-16.8mW Record and playback （1.8V Power Supply ）
Low supply voltage
- simulation 1.8V to 3.3V
- Digital movement ：1.5V To 3.3V
- Digital input I/O：1.8V to 3.3V
256fs/384fs or USB Master clock rate ：12MHz,24MHz
Audio sampling rate ：8、11.025、16、22.05、24、32、44.1、48
88.2,96 individual kHz Generated internally from the master clock
4x4mmCOL packing