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T7531CML, T7531ML, T7536

Table of contents:
Info of T7531CML
Info of T7531ML
Info of T7536

T7531CML, T7531ML, T7536 Selling Leads, Datasheet

MFG:AGERE Package Cooled:PLCC-68 D/C:PLCC84

T7531CML, T7531ML, T7536 Datasheet download

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Part Number: T7531CML

MFG: AGERE

Package Cooled: PLCC-68

D/C: PLCC84

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T7536 General Description

The T7531A is a custom, 16-channel line card signal processor which, together with a pair of custom T7536 octal A/D and D/A converters, comprises a low-cost, highly programmable voice codec that is compatible with all worldwide POTS lines.

Transmit and receive gains and hybrid balance coefficients are programmable per channel. Termination impedance is programmable per chip set. These functions, as well as time-slot assignment, calibration,and board test, are controlled via a microcontroller interface.

The DSP engine in the T7531A can be used to test the line card. When voice processing is not required, the spare processing time can be allocated on a perline basis to a suite of user-controlled board-test routines. Providing intelligent board-test functionality at the line-card level frees the switch from having to perform test and error diagnosis tasks.

T7536 Maximum Ratings

Parameter	Symbol	Min	Max	Unit
Ambient Operating Temperature	T_A	-40	85
Operating Junction Temperature	T_J	-40	125
Thermal Resistance, Junction to Case	R_JC	-	35	/W
Storage Temperature Range	T_stg	-55	150	V
Power Supply Voltage	V_DD	4.75	5.25
Voltage on Any Pin with Respect to Ground	V_SS	-0.25	5.25	V
Package Power Dissipation	P_D	-	1	W

Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are absolute stress ratings only. Functional operation of the device is not implied at these or any other conditions in excess of those given in the operational section of the data sheet. Exposure to absolute maximum ratings for extended periods can adversely affect device reliability.

T7536 Features

` Single 5 V power supply operation
` Per-channel programmable transmit gain
- 19.4 dB range, better than 0.01 dB steps
` Per-channel programmable receive gain
- 25.4 dB range, better than 0.01 dB steps
` Per-channel programmable internal balance networks
` Programmable termination impedances
` Per-channel programmable m-law, A-law, or linear PCM output
` Automatic gain calibration
` Advanced board- and self-test capability
` Programmable time-slot assignment
` Data rate of 2.048 MHz or 4.096 MHz
` Differential transmit amplifiers
` Single-ended or differential receive amplifiers
` Analog and digital loopbacks
` Sigma-delta converters with dither noise reductio
` Serial microcontroller control interface
` JTAG test port

T7536 Connection Diagram

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