TEA7090FPIC, TEA7090TP, TEA7091 Selling Leads, Datasheet
MFG:PHILPS Package Cooled:SOP D/C:35360
TEA7090FPIC, TEA7090TP, TEA7091 Datasheet download
Part Number: TEA7090FPIC
MFG: PHILPS
Package Cooled: SOP
D/C: 35360
TEA7090FPIC, TEA7090TP, TEA7091
- Table of contents:
Info of TEA7090FPIC
Info of TEA7090TP
Info of TEA7091
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About TEA0652
PDF/DataSheet Download
Datasheet: TEA0652
File Size: 156756 KB
Manufacturer: ETC [ETC]
Download : Click here to Download
About TEA0652
PDF/DataSheet Download
Datasheet: TEA0652
File Size: 156756 KB
Manufacturer: ETC [ETC]
Download : Click here to Download
About TEA7091
PDF/DataSheet Download
Datasheet: TEA7091
File Size: 142897 KB
Manufacturer: STMICROELECTRONICS [STMicroelectronics]
Download : Click here to Download
TEA7091 General Description
The TEA7091 is a Telephone set Analog Front End (TAFE) interface intended for use in conjunction with a microcontroller.
In this configuration the TEA7091 provides a worldwide mid-range telephone set with loudhearing on board and melody ringer on loudspeaker.
Repertory dialer (memory on MCU) and various features (HOLD, Tone/Pulse, Flash, MUTE, adjustable Ringer and Loudhearing levels..) are programmable by MCU.
Also high-range telephone set can be built around TEA7091 by adding Handsfree controller (TEA7540), Electronic Hook Switch and upgraded MCU (ST family) with LCD driver.
The concept using TAFE + Microcontroller is called BICHIP approach.
The benefits of this concept are:
Saving of external components.
Easy upgrade of the features (extra memories, LCD driver, Answering machine or Cordless interface..) through microcontroller.
Replacement of configuration switches (PABX /Public, Tone/Pulse...) by EEPROM settings.
This also induces reliability and cost improvement.
In this configuration the TEA7091 provides a worldwide mid-range telephone set with loudhearing on board and melody ringer on loudspeaker.
Repertory dialer (memory on MCU) and various features (HOLD, Tone/Pulse, Flash, MUTE, adjustable Ringer and Loudhearing levels..) are programmable by MCU.
Also high-range telephone set can be built around TEA7091 by adding Handsfree controller (TEA7540), Electronic Hook Switch and upgraded MCU (ST family) with LCD driver.
The concept using TAFE + Microcontroller is called BICHIP approach.
The benefits of this concept are:
Saving of external components.
Easy upgrade of the features (extra memories, LCD driver, Answering machine or Cordless interface..) through microcontroller.
Replacement of configuration switches (PABX /Public, Tone/Pulse...) by EEPROM settings.
This also induces reliability and cost improvement.
TEA7091 Maximum Ratings
| Symbol | Parameter | Value | Unit |
| Top | Operating Temperature | 25 to +70 | |
| Tstg | Storage Temperature | 55 to +150 | |
| VLM | Supply Voltage (pin 3) | 12 | V |
| ILM | Supply Current | 150 | mA |
| VREGM | CMOS part supply (Pin 8) | 6 | V |
| Tj | Junction Temperature | 25 to +150 |
TEA7091 Features
SPEECH
`DC LINE CURRENT RANGE FROM 6 TO 110mA
`Tx AND Rx GAIN EXTERNALLY ADJUSTABLE
`AGC IN Tx AND Rx EXTERNALLY PROGRAMMABLE
`AGC DISABLEABLE THROUGH MICROCONTROLLER BUS
`SINGLE/DOUBLE SIDETONE NETWORK SOFTWARE PROGRAMMABLE
`SOFTCLIPPING ON Tx CHANNEL
`SQUELCH TO REDUCE Tx NOISE ENVIROMENT AND TO IMPROVE HOWLING IMMUNITY IN LOUDHEARING MODE
`RECEIVING AMPLIFIER FOR PIEZO OR ELECTRODYNAMIC TRANSDUCERS
`+6dB MODE ON Rx CHANNEL (SELECTABLE THROUGH MICROCONTROLLER BUS)
`6dB MODE ON Tx CHANNEL (SELECTABLE THROUGH MICROCONTROLLER BUS)
`FREQUENCY GENERATOR FOR WAITING MELODY
`ERROR BEEP GENERATOR HOLD LINE CURRENT DETECTOR FOR TRANSFER/ AUTO RELEASE
`DC LINE CURRENT RANGE FROM 6 TO 110mA
`Tx AND Rx GAIN EXTERNALLY ADJUSTABLE
`AGC IN Tx AND Rx EXTERNALLY PROGRAMMABLE
`AGC DISABLEABLE THROUGH MICROCONTROLLER BUS
`SINGLE/DOUBLE SIDETONE NETWORK SOFTWARE PROGRAMMABLE
`SOFTCLIPPING ON Tx CHANNEL
`SQUELCH TO REDUCE Tx NOISE ENVIROMENT AND TO IMPROVE HOWLING IMMUNITY IN LOUDHEARING MODE
`RECEIVING AMPLIFIER FOR PIEZO OR ELECTRODYNAMIC TRANSDUCERS
`+6dB MODE ON Rx CHANNEL (SELECTABLE THROUGH MICROCONTROLLER BUS)
`6dB MODE ON Tx CHANNEL (SELECTABLE THROUGH MICROCONTROLLER BUS)
`FREQUENCY GENERATOR FOR WAITING MELODY
`ERROR BEEP GENERATOR HOLD LINE CURRENT DETECTOR FOR TRANSFER/ AUTO RELEASE
TEA7091 Connection Diagram
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