MSM7507-01/02/03
Single Rail CODEC
 

Documents

Applications

Description

The MSM7507 is a single-channel CODEC CMOS IC for voice signals ranging from 300 to 3400 Hz with filters for A/D and D/A conversion.

Designed especially for a single-power supply and low-power applications, the device is optimized for ISDN terminals, digital wireless systems, and digital PBX systems.

The device uses the same transmission clocks as those used in the MSM7508B and MSM7509B. The analog output signal, which is of a differential type and can drive a 600V load, can directly drive a handset receiver.

Block Diagram

Features

»	Single-power supply: +5 V ±5%
»	Low Power consumption »  Operating mode: 20 mW Typ. 40 mW Max. VDD =5 V »  Power-down mode: 0.03 mW Typ. 0.3 mW Max. VDD =5 V
»	ITU-T Companding law »  MSM7507-01: µ/A-law pin selectable »  MSM7507-02: µ-law »  MSM7507-03: A-law
»	Transmission characteristics conforms to ITU-T G.714
»	Built-in PLL eliminates a master clock
»	Serial data rate: 64/128/256/512/1024/2048 kHz 96/192/384/768/1536/1544/206 kHz
»	Adjustable transmit gain
»	Adjustable receive gain
»	Built-in reference voltage supply
»	Analog output can directly drive a 600 line transformer
»	The 24-Pin SOP package products provide pin compatibility with the MSM7543/7544
»	The 20-Pin SSOP package products have 1/3 the foot print of conventional products
»	Package options: »  24-pin plastic SOP (SOP24-P-430-1.27-K) (Product name : MSM7507-01GS-K) (Product name : MSM7507-02GS-K) (Product name : MSM7507-03GS-K) »  20-pin plastic SSOP (SSOP20-P-250-0.95-K) (Product name : MSM7507-01MS-K) (Product name : MSM7507-02MS-K) (Product name : MSM7507-03MS-K)