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MSM7590L-01

Multi-Function ADPCM CODEC

Oki Electric Industry 

E2U0029-28-82

¡ ¡ SemicondSucetormiconductor

MSM7590L-01

Multi-Function ADPCM CODEC

This versioMn:SAMu7g5.9109L9-801

Previous version: Nov. 1996

GENERAL DESCRIPTION

The MSM7590L-01, developed for advanced digital cordless telephone systems, is a single

channel ADPCM CODEC IC which performs mutual transcoding between the analog voice band

signal and 32 kbps ADPCM serial data.

This device includes DTMF Tone and several types of tone generation, transmit/receive data

mute and gain control, side-tone path and gain control, and VOX function.

Using advanced circuit technology, the device operates from a single 3 V power supply and

provide low power consumption.

FEATURES

• Single 3 V Power Supply Operation

• ADPCM Algorithm :

VDD: 2.7 V to ␣ 3.6 V

ITU-T G.726 (32 kbps, 24 kbps, 16 kbps)

• Full-Duplex Transmit/Receive Operation

• Transmit/Receive Synchronous Mode Only

• PCM Data Format :

A-law or µ-law Selectable

• Serial PCM/ADPCM Transmission Data Rate : 64 kbps to 2048 kbps

• Low Power Consumption

Operating Mode :

Power-Down Mode :

21 mW Typ. (VDD = 3.0 V)

0.3 mW Typ. (VDD = 3.0 V)

• Two Analog Input Amplifier Stages :

Externally Adjustable Gain

• Analog Output Stage :

Push-pull Drive (direct drive of 350 W␣ + 120 nF)

• Master Clock Frequency :

10.368 MHz

• Transmit/Receive Mute, Transmit/Receive Programmable Gain Control

• Side Tone Path with Programmable Attenuation (8-step Adjustment Level)

• Built-in DTMF Tone Generator

• Built-in Various Ringing/Function Tones Generator

• Built-in Various Ring Back Tone Generator

• Serial MCU Interface Control

• Built-in Sounder Driving Amplifier

• Built-in VOX Control

Transmit side :

Voice Signal Detect

Receive side :

Background Noise Generation

• Characteristic Evaluation Board.

• Package:

32-pin plastic TSOP (TSOPI32-P-814-0.50-1K)

(Product name: MSM7590L-01TS-K)

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