U4089B, U4089B-M, U4089BMFN Selling Leads, Datasheet
MFG:TFK Package Cooled:TFK D/C:02/03+
U4089B, U4089B-M, U4089BMFN Datasheet download
Part Number: U4089B
MFG: TFK
Package Cooled: TFK
D/C: 02/03+
U4089B, U4089B-M, U4089BMFN
- Table of contents:
Info of U4089B
Info of U4089B-M
Info of U4089BMFN
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About U4089B
PDF/DataSheet Download
Datasheet: U4089B
File Size: 678320 KB
Manufacturer: ATMEL [ATMEL Corporation]
Download : Click here to Download
About U4089B-M
PDF/DataSheet Download
Datasheet: U4089B-M
File Size: 678320 KB
Manufacturer: ATMEL [ATMEL Corporation]
Download : Click here to Download
About U401
PDF/DataSheet Download
Datasheet: U401
File Size: 29550 KB
Manufacturer: CALOGIC [Calogic, LLC]
Download : Click here to Download
U4089B-M General Description
The telephone circuit U4089B-M is a linear integrated circuit for use in feature phones, answering machines and fax machines. It contains the speech circuit, side tone equivalent and ear protection rectifiers. The circuit is line-powered and contains all components necessary for the amplification of signals and adaptation to the line. An integrated voice switch with a loudspeaker amplifier enables loud-hearing or hands-free operation. With an anti-feedback function, acoustical feedback during loud- hearing can be reduced significantly. The generated supply voltage is suitable for a wide range of peripheral circuits.
U4089B-M Maximum Ratings
| Parameters |
Symbol |
Value |
Unit |
| Line current |
IL |
140 |
mA |
| DC line voltage |
VL |
12 |
V |
| Junction temperature |
Tj |
125 |
|
| Ambient temperature |
Tamb |
- 25 to + 75 |
|
| Storage temperature |
Tstg |
55 to +150 |
|
| Total power dissipation, Tamb = 60°C, SSO44 |
Ptot |
0.9 |
W |
U4089B-M Features
·Adjustable DC Characteristics
·Adjustable Transmit and Receive Gain
·Symmetrical Input of Microphone Amplifier
·Anti-clipping in Transmit Direction
·Automatic Line-loss Compensation
·Built-in Ear Protection
·DTMF and MUTE Input
·Adjustable Side Tone Suppression Independent of Sending and Receiving Amplification
·Integrated Amplifier for Loud-hearing Operation
·Anti-clipping for Loudspeaker Amplifier
·Improved Acoustical Feedback Suppression
·Selectable Line Impedance
·Voice Switch
·Supply Voltages for All Functional Blocks of a Subscriber Set
·Operation Possible from 10-mA Line Current
U4089B-M Typical Application
·Feature Phones
·Answering Machines
·Fax Machines
·Speaker Phones
U4089B-M Connection Diagram
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