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U4080B Datasheet

  • U4080B

  • Voice-Switched Circuit for Handsfree Operation

  • 15頁(yè)

  • TEMIC

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U4080B
Voice-Switched Circuit for Handsfree Operation
Description
The voice switched speakerphone integrated circuit,
U4080B, incorporates a variety of functions (see below).
The versality of the device is further enhanced by the
provision of a large number of pins giving access to
internal circuit points.
Features
D
Operates on telephone lines, integrated reference
voltage regulation
D
Output power: 100 mW at a 25-鈩?load with peak
limitation
D
Linear volume control
D
Monitoring system for background sound level
D
Wide operating dynamic range through signal
compression
D
Chip select pin for active/standby operation
Block Diagram / Application Circuit
Figure 1. Block diagram and application circuit
TELEFUNKEN Semiconductors
Rev. A1, 20-May-96
1 (15)
Preliminary Information

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