Product Summary

The CS6420-CS is a full duplex speakerphone chip.The CS6420-CS enables full-duplex conversation with a single- chip solution. The CS6420-CS can easily replace existing half-duplex speakerphone ICs with a huge increase in conversation quality. The CS6420-CS consists of telephone & audio interfaces, two codecs and an echo-cancelling DSP.

Parametrics

CS6420-CS absolute maximum ratings: (1)DC Supply (AVDD, DVDD): -0.3 to 6.0 V; (2)Input Current (Except supply pins): -10 to +10 mA; (3)Input Voltage Analog: -0.3 to AVDD+0.3 V; (4)Input Voltage Digital: -0.3 to DVDD+0.3; (5)Ambient Operating Temperature: -40 to 85 °C; (6)Storage Temperature: -65 to 150 °C.

Features

CS6420-CS features: (1)Singe-chip fu-dupex hands-free operation; (2)Automatic gain contro; (3)Optiona 34 dB microphone preampifier; (4)Integrated mute and voume contro; (5)Integrated 80 dB IDR dua codec; (6)Speech-trained Network and Acoustic Echo Canceers; (7)Powerdown mode; (8)Microcontroer Interface.

Diagrams

CS6420-CS pin connection