Datasheet Details
- Part number
- U4030B
- Manufacturer
- TEMIC Semiconductors
- File Size
- 142.94 KB
- Datasheet
- U4030B_TEMICSemiconductors.pdf
- Description
- Telephone Speech Circuit
U4030B Description
www.DataSheet4U.com U4030B Telephone Speech Circuit .
The U4030B is an electronic speech circuit for standard and feature telephones.
U4030B Features
* D Microphone amplifier with
* Symmetrical input
* Privacy function
* Anticlipping D Built in ear protection D Power down input D Mute input D DTMF interface D Low line impedance during pulse dialing
Benefits
D Independent adjustment of
* Transmission gain
* R
U4030B Applications
* D Standard telephone D Fax machine D Answering machine D Cordless telephone
Block Diagram
GT 11 DTMF PRIV MIC1 MIC2 10
* + MICO 9 ST 5 +
* GR 6
* + Ear protection RECO 7
16 12 13
4 TXA REC. ATT. CK
15 Limiter Mute 3 CLIM 8 MUTE 17 PD Power supply U 4030 B 14 GND 18 SWAMP
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