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MSM7532

Features: • Built-in ceramic receiver drive amplifiers• The compander input reference level, limiter level, and modem transmit level are easy to be externally adjusted.• Built-in 2-bit electronic volume• A microphone amplifier and an amplifier available for users are built ...

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SeekIC No. : 004429085 Detail

MSM7532: Features: • Built-in ceramic receiver drive amplifiers• The compander input reference level, limiter level, and modem transmit level are easy to be externally adjusted.• Built-in 2...

MSM7532 Data Sheet

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Part Number:
MSM7532
Supply Ability:
5000

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  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

• Built-in ceramic receiver drive amplifiers
• The compander input reference level, limiter level, and modem transmit level are easy to be externally adjusted.
• Built-in 2-bit electronic volume
• A microphone amplifier and an amplifier available for users are built in.
• Mode settings using parallel interfaces
• Built-in compander dynamic range: 70 dB
• Built-in maximum gain limit circuit for expander
• The bit rate of MSK modem is switchable between 2400 bps and 1200 bps.
• Scrambler and emphasis can be used by serially connecting them or can be used separately with each other.
• Three kinds of the reverse frequency of the scrambler are selectable.
• The modem receiver functions detect bit synchronous signals and frame synchronous signals.
• Four-step power down modes
• Built-in crystal oscillation circuit
• Wide range of power supply (1.8 V to 5.5 V)
• Package:56-pin plastic QFP (QFP56-P-910-0.65-2K) (Product name : MSM7532GS-2K)


Pinout

Connection Diagram


Specifications

Parameter
Symbol
Condition
Rating
Unit
Power Supply Voltage
VDD

Ta = 25°C
Referred to GND
0.3 to 7
V
Analog Input Voltage *1
VIN
0.3 to VDD + 0.3
Digital Input Voltage *2
VID
0.3 to VDD + 0.3
Operating Temperature
TOP
-
30 to 70
°C
Storage Temperature
TSTG
-
55 to 150
*1: TVI, MICN, MICP, CMPI, UAI, MODL, LIML, CPDL, RAI, RVBU
*2: TVE, RVE, PDN, FDE, BYP, BR, EMP, VOL1, VOL2, PDRC, X2, SD, BIT, FPS, RCK1, RCK2, SEC,ME


Description

The MSM7532 is a baseband device with a modem function and a baseband voice signal processing function for analog cordless telephone. The voice signal transmitter in this IC consists of a high-pass filter, compressor, scrambler, pre-emphasis, limiter, and splatter filter.

The voice signal receiver MSM7532 consists of a bandpass filter, a de-scrambler , a de-emphasis, an expander,an electronic volume, and a ceramic receiver driving circuit.

The MODEM in this IC MSM7532 transmits and receives MSK (Minimum Shift Keying) modem signals.




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