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FEDL7540-03

FEDL7540-03

This version: Nov. 1999

MSM7540/7560

Previous version: Aug. 1998

隆 Semiconductor

MSM7540/7560

隆 Semiconductor

Single Rail ADPCM CODEC

GENERAL DESCRIPTION

The MSM7540/7560 are single channel ADPCM CODEC ICs which perform mutual transcoding

between an analog voice band signal 300 to 3400 Hz and 32 kbps ADPCM serial data.

Using advanced circuit technology, these devices operate using a single 5 V power supply and

have low power consumption.

The MSM7540/7560 are optimized for advanced digital cordless telephone system applications.

FEATURES

鈥?Single 5 V Power Supply Operation

鈥?ADPCM Algorithm :

Complies completely with 1988's version ITU-T

G.721 (32 kbps)

鈥?Transmit/Receive Full-Duplex Operation

鈥?Transmit/Receive Synchronous Mode Only

鈥?Serial ADPCM Transmission Data Rate :

32 kbps to 2048 kbps

64 kbps to 2048 kbps

鈥?Serial PCM Transmission Data Rate :

鈥?PCM Interface Coding Format

MSM7540 :

A-law or Linear (14-bit, 2's compliment) Selectable

MSM7560 :

m-law

or Linear (14-bit, 2's compliment) Selectable

鈥?Low Power Consumption

Operating Mode :

60 mW Typ.

Power-Down Mode :

1.0 mW Typ.

Externally Adjustable Gain

鈥?Two Analog Input Amplifier Stages :

Push-pull Drive (direct drive of 350

W

+ 120 nF)

鈥?Analog Output Stage :

鈥?Built-in Crystal Oscillator (10.368 MHz)

鈥?Built-in Reference Voltage Supply

鈥?Option Reset Specified by ITU-T G. 721/ADPCM

鈥?Package:

28-pin plastic SOP

(SOP28-P-430-1.27-K) (Product name: MSM7540GS-K)

(Product name: MSM7560GS-K)

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MSM7540 PDF文件相關(guān)型號(hào)

MSM7540相關(guān)型號(hào)PDF文件下載

• 型號(hào)
  版本
  描述
  廠商
  下載
• MSM7502
  英文版
  Multi-Function PCM CODEC
  OKI
  MSM7502
• MSM7503
  英文版
  Multi-Function PCM CODEC
  OKI
  MSM7503
• MSM7508
  英文版
  OKI electronic componets [Single Rail CODEC]
  OKI
  MSM7508
• MSM7510
  英文版
  300 bps Full Duplex FSK Modem – ITU-T V.21
  OKI
  MSM7510
• MSM7512
  英文版
  OKI electronic componets [1200 bps Half Duplex FSK Modem - ...
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  MSM7512
• MSM7524
  英文版
  OKI electronic componets [DTMF Transceiver]
  OKI
  MSM7524
• MSM7532
  英文版
  Single Chip MSK Modem with Compandor for Cordless Telephone
  OKI
  MSM7532
• MSM7534
  英文版
  2ch Single Rail CODEC
  OKI
  MSM7534
• MSM7540
  英文版
  Single Rail ADPCM CODEC
  OKI
  MSM7540
• MSM7541
  英文版
  Single Rail CODEC
  OKI
  MSM7541
• MSM7542
  英文版
  Single Rail CODEC
  OKI
  MSM7542
• MSM7543
  英文版
  Single Rail CODEC
  OKI
  MSM7543
• MSM7544
  英文版
  Single Rail CODEC
  OKI
  MSM7544
• MSM7545
  英文版
  OKI electronic componets [LSI]
  OKI
  MSM7545
• MSM7547
  英文版
  Voice Signal Level Control LSI
  OKI
  MSM7547
• MSM7557
  英文版
  Single Chip MSK Modem with Compandor for Cordless Telephone
  OKI
  MSM7557
• MSM7560
  英文版
  Single Rail ADPCM CODEC
  OKI
  MSM7560
• MSM7566
  英文版
  Single Rail CODEC
  OKI
  MSM7566
• MSM7567
  英文版
  Single Rail CODEC
  OKI
  MSM7567
• MSM7570
  英文版
  5V Sinlge-Rail ADPCM CODECs
  OKI
  MSM7570

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