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MSM7570-01 Datasheet

  • MSM7570-01

  • Multi-Function ADPCM CODEC

  • OKI

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E2U0030-28-82
隆 Semiconductor
MSM7570-01
隆 Semiconductor
Multi-Function ADPCM CODEC
This version: Aug. 1998
MSM7570-01
Previous version: Nov. 1996
GENERAL DESCRIPTION
The MSM7570-01, 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 ciruit technology, the device operates using a single 5 V power supply and have
low power consumption.
FEATURES
V
DD
: 4.5 V to 5.5 V
鈥?Single 5 V Power Supply Operation
ITU-T G.726 (32 kbps, 24 kbps, 16 kbps)
鈥?ADPCM Algorithm :
鈥?Transmit/Receive Full-Duplex Single Channel Operation
鈥?Transmit/Receive Synchronous Mode Only
A-law/碌-law Selectable
鈥?PCM Data Format :
鈥?Serial PCM/ADPCM Transmission Data Rate :64 kbps to 2048 kbps
鈥?Low Power Consumption
Operating Mode :
70 mW Typ. (V
DD
= 5.0 V)
Power-Down Mode :
0.5 mW Typ. (V
DD
= 5.0 V)
Externally Adjustable Gain
鈥?Two Analog Input Amplifier Stages :
鈥?Analog Output Stage :
Push-pull Drive (direct drive of 350
W
+ 120 nF)
12.288/19.200 MHz Selectable
鈥?Master Clock Frequency :
鈥?Transmit/Receive Mute, Transmit/Receive Programmable Gain Control
鈥?Side Tone Path with Programmable Attenuation
(8-step Level Adjustment)
鈥?Built-in DTMF Tone Generator
鈥?Built-in Various Ringing/Function Tones Generator
鈥?Built-in Various Ring Back Tone Generator
鈥?Serial MCU Interface Control
鈥?Built-in Sounder Driving Amplifier
鈥?Built-in VOX Control
Transmit side :
Voice Signal Detect
Receive side :
Background Noise Generation
鈥?Characteristic Evaluation Board.
鈥?Package:
32-pin plastic TSOP (TSOPI32-P-814-0.50-1K)
(Product name: MSM7570-01TS-K)
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