TEMIC Semiconductors U4092B
U4092B is a linear integrated circuit for use in feature phones, answering machines and fax machines. It contains the speech circuit, tone ringer interface with dc/dc converter, sidetone equivalent and ear protection rectifiers. The circuit is line powered and contains all components necessary for amplification of signals and adaptation to the line.| Part No. | U4092B |
|---|---|
| Datasheet | U4092B Download |
| Manufacturer |  TEMIC Semiconductors |
| Description | Monolithic Integrated Feature Phone Circuit |
| Buy | Stock & Price |
DESCRIPTION
The µc controlled telephone circuit An integrated voice switch with loudspeaker amplifier allows loudhearing or handsfree operation. With an anti-feedback function, acoustical feedback during loudhearing can be reduced significantly. The generated supply voltage is suitable for a wide range of peripheral circuits.FEATURES
D DC characteristic adjustable D Transmit and receive gain adjustable D Symmetrical input of microphone amplifier D Anti-clipping in transmit direction D Automatic line loss compensation D Built-in ear protection D DTMF and MUTE input D Adjustable sidetone suppression independent of sending and receiving amplification D Integrated amplifier for loudhearing operation D Anti-clipping for loudspeaker amplifier D Improved acoustical feedback suppression D Power down D Voice switch D Tone ringer interface with dc/dc converter D Zero crossing detection D Common speaker for loudhearing and tone ringer D Supply voltages for all functional blocks of a subscriber s...
