TEA7092 ST Microelectronics, Inc., TEA7092 Datasheet

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TEA7092

Manufacturer Part Number

TEA7092

Description

Telephone Analog Front End

Manufacturer

ST Microelectronics, Inc.

Datasheet

1.TEA7092.pdf (24 pages)

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

BOSTOCK HK LIMITED

BOSTOCK HK LIMITED

Part Number:

TEA7092

Manufacturer:

ST

0

Company:

BOSTOCK HK LIMITED

BOSTOCK HK LIMITED

Part Number:

TEA7092A

Manufacturer:

ST

0

Company:

BOSTOCK HK LIMITED

BOSTOCK HK LIMITED

Part Number:

TEA7092T

Manufacturer:

ST

0

Company:

Meier Automation Equipment Co., Limited

Meier Automation Equipment Co., Limited

Part Number:

TEA7092TQT

Manufacturer:

ST

Quantity:

20 000

Company:

Bonase Electronics (HK) Co., Limited

Bonase Electronics (HK) Co., Limited

Part Number:

TEA7092TQT-8A

Manufacturer:

INFINEON

Quantity:

950

Current page: 1 of 24
Download datasheet (410Kb)

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SPEECH

GROUP LISTENING / ON HOOK DIALING

HANDFREE INTERFACE

RING ON LOUDSPEAKER

July 1996

DC LINE CURRENT RANGE FROM 6 TO 120mA

EXTERNALLY ADJUSTABLE :

SOFTCLIPPING ON Tx CHANNEL

SQUELCH ON Tx CHANNEL TO REDUCE NOISE

ENVIRONMENT AND TO IMPROVE HOWLING

IMMUNITY IN LOUDHEARING MODE

RECEIVING AMPLIFIER FOR PIEZO AND

ELECTRODYNAMIC TRANSDUCERS

FREQUENCY GENERATOR FOR WAITING

MELODY

ERROR BEEP GENERATOR

HOLD LINE CURRENT DETECTOR FOR

TRANSFER/AUTO RELEASE FEATURE

PROGRAMMABLE BY MICROCONTROLLER

SERIAL BUS :

ANTI-HOWLING WITH ACOUSTIC FEED-

BACK SYSTEM COUPLED TO SQUELCH

RING MELODY CONTROL AND ERROR

BEEP GENERATORS

PROGRAMMABLE BY MICROCONTROLLER

SERIAL BUS :

PINS AND SOFTWARE FACILITY FOR EASY

INTERCONNECTION

CONTROLLER I.C. LIKE TEA7540

EMBEDDED SWITCH MODE POWER SUP-

PLY DRIVER TO FEED THE LOUDSPEAKER

AMPLIFIER DURING RING MODE

- Tx AND Rx GAIN

- MAXIMUM TRANSMIT LEVEL

- RETURN LOSS

- SIDETONE NETWORKS

- Tx AND Rx AGC (LINE CURRENT START UP

- -6dB ON Tx CHANNEL

- +6dB ON Rx CHANNEL

- AGC INHIBITION ON Tx AND Rx CHANNELS

- SQUELCH INHIBITION

- DIGITAL VOLUME CONTROL (7 STEPS OF

VALUE AND SLOPE)

FOR PABX USE

4dB EACH) AND OFF MODE

WITH

HANDSFREE

TELEPHONE ANALOG FRONT END

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DIALING

MICROCONTROLLER INTERFACE

CORDLESS AND ANSWERING MACHINE

INTERFACE

PROGRAMMABLE BY MICROCONTROLLER

SERIAL BUS :

PROGRAMMABLE BY MICROCONTROLLER

SERIAL BUS :

3.5V STABILIZED SUPPLY

TWO WIRES SERIAL BUS INTERFACE

RING INDICATOR

PON LINE CURRENT INDICATOR

RESET SIGNAL

LINE

(FOR TRANSFER FEATURE)

OSCILLATOR WITH STAND BY MODE

SELF BIASED LOUDSPEAKER AMPLIFIER

AND MICROCONTROLLER INTERFACE FOR

ANSWERING MACHINE

SIGNAL INPUT AND OUTPUT INTERFACE

FOR CORDLESS

V

TO 5V FOR EASY INTERFACE WITH A MAIN

POWERED MICROCONTROLLER

- DIGITAL VOLUME CONTROL (15 STEPS OF

- RING FREQUENCY GENERATOR (MORE

- DTMF GENERATOR

- 2V DC LINE VOLTAGE DURING THE MAKE

RMC

4dB EACH) AND OFF MODE

THAN 200 FREQUENCIES AVAILABLE)

PERIOD IN PULSE MODE

ORDER CODES : TEA7092TQ - TEA7092TQT

SUPPLY CAN BE EXTERNALLY FORCED

CURRENT

(Plastic Quad Flat Package)

TQFP44

VARIATION

TEA7092

INDICATOR

1/24

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