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Part Number: MSM01
Description: The MSM7731 is an LSI device developed for portable, handsfree communication with built-in line echo c...
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MSM01
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General Description
MSM01 General Description
The MSM7731 is an LSI device developed for portable, handsfree communication with built-in line echo canceler, acoustic echo canceler, and transmission signal noise canceler. Built-in to the voice signal interface is a linear CODEC for the analog interface on the acoustic-side, and a linear CODEC for the analog interface on the line-side. On the line-side, in addition to the analog interface, there is also a -law PCM/16-bit linear digital interface.
Equipped with gain and mute controls for data transmission and reception, a m-law PCM/16- bit linear digital interface for memo recording and message output, and transfer clock and sync clock generators for digital communication, this device is ideally suited for a handsfree system.
MSM01 Maximum Ratings
|
Parameter |
Symbol |
Condition |
Rating |
Unit |
|
Power Supply Voltage |
VDD |
0.3 to +5.0 |
V | |
|
Digital Input Voltage |
VDIN |
0.3 to VDD+0.3 |
V | |
|
Digital Output Voltage |
VOUT |
0.3 to VDD+0.3 |
V | |
|
Storage Temperature |
TSTG |
55 to +150 |
°C |
MSM01 Features
• Single 3 V power supply operation (2.7 V to 3.6 V)
• Built-in 2-channel (line and acoustic) echo canceler Echo attenuation : 35 dB (typ.) Cancelable echo delay time : Line echo canceler + acoustic echo canceler : Tlined = 27 ms (max.), Tacoud = 59 ms Tlined (max.) Acoustic echo canceler only : Tacoud = 59 ms (max.)
• Built-in transmission signal noise canceler Noise attenuation: 13 dB (typ.) for white noise 40 dB (typ.) for single tone
• Built-in 2-channel CODEC Synchronous transmission and reception enables full duplex operation
• Built-in analog input gain amp stage (max. gain = 30 dB)
• Analog output configuration: Push-pull drive (can drive a 1.2 k load)
• Built-in transmit slope filter
• Digital interface coding formats: m-law PCM, 16-bit linear (2's complement)
• Digital interface sync formats: Normal-sync, short-frame-sync
• Built-in digital transmission clock generators Sync clock (SYNC): 8 kHz output Transmission clock (BCLK): 64 kHz output (m-law PCM)/128 kHz output (16-bit linear)
• Digital transmission rate External input: 64 kbps to 2048 kbps Internal generation: 64 kbps (-law PCM)/128 kbps (16-bit linear)
• Fixed digital interface sync clock (SYNC) enables automatic power-down
• Master clock frequency: 19.2 MHz Compatible with crystal oscillator and crystal
• Low power consumption Operating mode: typ. 105mW (when VDD = 3.0 V) Power-down mode: typ. 0.3mW (when VDD = 3.0 V)
• Control by both the serial microcomputer interface and parallel port is possible
• Transmit/receive mute function, transmit/receive programmable gain setting
• Package: 64-pin plastic QFP (QFP64-P-1414-0.80-BK) (Product name: MSM7731-01GA)
MSM01 Connection Diagram
MSM10S0000
PDF/DataSheet Download
- Datasheet: MSM10S0000
- File Size: 48604 KB
- Manufacturer: OKI [OKI electronic componets]
- Click here to Download
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