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.

FEATURES

• Single 3 V Power Supply Operation VDD: 2.7 V to ␣ 3.6 V

• ADPCM Algorithm : 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 : 21 mW Typ. (VDD = 3.0 V)

Power-Down Mode : 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)