(China (Mainland))
Product Summary
The CS6422-CSZ is an enhanced full-duplex speakerphone IC. It uses half-duplex operation, which alternates transmission between the far-end talker and the speakerphone user. This is done to ensure stability because the acoustic coupling between the speaker and microphone is much higher in speakerphones than in handsets where the coupling is mechanically suppressed. The CS6422-CSZ consists of telephone & audio interfaces, two codecs and an echo-cancelling DSP.
Parametrics
CS6422-CSZ absolute maximum ratings: (1)DC Supply (AVDD, DVDD): min=-0.3 V, max=6.0 V; (2)Input Current (Except supply pins) Iin: min=-10 mA, max=+10 mA; (3)Input Voltage Analog Vina: min=-0.3 V, max=AVDD+0.3 V; Digital Vind: min=-0.3 V, max=DVDD+0.3 V; (4)Ambient Operating Temperature TA: min=-40 ℃, max=85 ℃; (5)Storage Temperature Tstg: min=-65 ℃, max=150 ℃.
Features
CS6422-CSZ features: (1)Single-chip, full-duplex, hands-free operation; (2)Optional Tx Noise Guard; (3)Programmable attenuation during double-talk; (4)Optional 34 dB microphone preamplifier; (5)Dual channel AGC ed volume controls with mute; (6)Dual integrated 80 dB IDR codecs; (7)Speech-trained Network and Acoustic Echo Cancellers; (8)Rx and Tx supplementary echo suppression; (9)Configurable half-duplex training mode; (10)Powerdown mode; (11)Microcontroller Interface.
Diagrams
| Image | Part No | Mfg | Description |  |
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 CS6422-CSZ |
Cirrus Logic |
Audio Amplifiers Enhanced Full-Duplex Speakerphone IC |
Data Sheet |
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CS6422-CSZR |
Cirrus Logic |
Digital Signal Processors & Controllers (DSP, DSC) IC Enhanced Full-Duplx Spkrphone |
Data Sheet |
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