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)