MSM7590L-01

E2U0029-28-82 ¡ Semiconductor MSM7590L-01 ¡ Semiconductor Multi-Function ADPCM CODEC This version: Aug. 1998 MSM7590L-01 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 VDD: 2.7 V to ␣ 3.6 V ITU-T G.726 (32 kbps, 24 kbps, 16 kbps) ADPCM Algorithm : 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 Generat...