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T7500PC, T7501PC, T7503

Table of contents:
Info of T7500PC
Info of T7501PC
Info of T7503

T7500PC, T7501PC, T7503 Selling Leads, Datasheet

MFG:LUCENT Package Cooled:DIP D/C:DIP18

T7500PC, T7501PC, T7503 Datasheet download

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Part Number: T7500PC

MFG: LUCENT

Package Cooled: DIP

D/C: DIP18

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T7503 General Description

The T7503 device is a single-chip, two-channel m-law PCM codec with filters. This integrated circuit provides analog-to-digital and digital-to-analog conversion. It provides the transmit and receive filtering necessary to interface a voice telephone circuit to a time-division multiplexed (TDM) system. The device features a differential transmit amplifier, and the power receive amplifier is capable of driving 600W differentially. PCM timing is defined by a single frame sync pulse. This device operates in a delayed timing mode (digital data is valid one clock cycle after frame sync goes high). The T7503 is packaged in a 20-pin SOJ.

T7503 Maximum Ratings

Parameter	Symbol	Min	Max	Unit
Storage Temperature Range	T_stg	55	150	°C
Power Supply Voltage	V_DD		6.5	V
Voltage on Any Pin with Respect to Ground		0.5	0.5 + V_DD	V
Maximum Power Dissipation (package limit)	P_D		600	mW

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 sections of this data sheet. Exposure to absolute maximum ratings for extended periods can adversely affect device reliability.

T7503 Features

` +5 V only
` Automatic powerdown mode
` Low-power, latch-up-free CMOS technology
` On-chip sample and hold, autozero, and precisionvoltage reference
` Differential architecture for high noise immunity and power supply rejection
` Automatic master clock frequency selection
` 2.048 MHz or 4.096 MHz fixed data rate
` Frame sync controlled channel swapping
` Differential analog I/O
` 300W output drivers
` Operating temperature range: 40°C to +85°C
` m-law companding

T7503 Typical Application

· Speakerphone

· Telephone answering device (TAD)

· POTS for ISDN

T7503 Connection Diagram

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