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MSM7575 Datasheet

  • MSM7575

  • Multi-Function PCM CODEC

  • OKI

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E2U0025-29-82
隆 Semiconductor
MSM7575
隆 Semiconductor
Multi-Function PCM CODEC
This version: Aug. 1999
MSM7575
Previous version: Jan. 1998
GENERAL DESCRIPTION
The MSM7575, developed for advanced digital cordless telephone systems, is a single channel
full duplex CODEC which performs mutual transcoding between the analog voice band signal
and the 64 kbps PCM serial data.
This device performs DTMF tone and several kinds of tone generation, transmit/receive data
mute and gain control, side-tone pass and its gain control, and VOX function.
Using advanced circuit technology, this device operates from a single 3 V power supply and
provides low power consumption.
FEATURES
V
DD
: 2.7 V to 3.6 V
鈥?Single 3 V Power Supply Operation
鈥?Transmit/Receive Full-Duplex Single Channel Operation
鈥?Transmit/Receive Synchronous Mode Only
A-law/碌-law/linear (2's complement) Selectable
鈥?PCM Interface Data Format :
64 kbps to 2048 kbps
鈥?Serial PCM Transmission Data Rate :
鈥?Low Power Consumption
Operating Mode :
24 mW Typ. (V
DD
= 3.0 V)
Power-Down Mode :
0.03 mW Typ. (V
DD
= 3.0 V)
鈥?Two Analog Input Amplifier Stages:
Externally Gain Adjustable
鈥?Analog Output Stage
Push-pull Drive (direct drive of 350
W
+ 120 nF)
9.600/19.200 MHz Selectable
鈥?Master Clock Frequency :
鈥?Transmit/Receive Mute, Transmit/Receive Programmable Gain Control
(8-step Level Adjustment)
鈥?Side Tone Path with Programmable Attenuation
鈥?Built-in DTMF Tone Generator
鈥?Built-in Various Ringing Tones Generator
鈥?Built-in Various Ring Back Tone Generator
鈥?Control by Serial MCU Interface
鈥?Built-in VOX Control
Transmit side
:
Voice/Silence Signal Detect
Receive side
:
Background Noise Generation
鈥?Built-in Op-amps and Analog Switches for Various Analog Interfaces.
鈥?Package:
64-pin plastic QFP
(QFP64-P-1414-0.80-BK)(Product name : 7575GS-BK)
1/25

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