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MSM7584C

Features: (/4 Shift QPSK Modem)• Built-in root Nyquist filter (a (rolloff rate) = 0.5) for the baseband limiter• Differential I and Q analog outputs• The DC offset and gain can be adjusted with respect to the differential I and Q analog outputs• Completely digitized /4 shi...

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SeekIC No. : 004429114 Detail

MSM7584C: Features: (/4 Shift QPSK Modem)• Built-in root Nyquist filter (a (rolloff rate) = 0.5) for the baseband limiter• Differential I and Q analog outputs• The DC offset and gain can be...

MSM7584C Data Sheet

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Part Number:
MSM7584C
Supply Ability:
5000

Price Break

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

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Upload time: 2024/11/26

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Product Details

Description



Features:

   (/4 Shift QPSK Modem)
• Built-in root Nyquist filter (a (rolloff rate) = 0.5) for the baseband limiter
• Differential I and Q analog outputs
• The DC offset and gain can be adjusted with respect to the differential I and Q analog outputs
• Completely digitized /4 shift QPSK demodulator system
• Input IF signal frequency of 1.2 MHz or 10.8 MHz is available.
• Built-in A/D converter for RSSI detection (ADPCM CODEC)
• ADPCM : ITU-T Recommendations G.721 (32 kbps)
• Transmit/receive full duplex capability
• PCM interface code format: selectable between m-law and A-law
• Built-in transmit/receive mute function and transmit/receive programmable gain setting function
• Side tone path formation and level adjustment capabilities
• Built-in DTMF tone and other tones
• Built-in VOX function
• Built-in speech recording/playing interface
• Built-in 150 driving OP AMP
• Built-in various analog switches (Common)
• Single 3V power supply (VDD: 2.7 V to 3.6 V)
• Mode setting through serial interface
• Low power consumption
   When the modem unit is operating : 13 mA Typ. (VDD = 3.0 V)
   When the ADPCM CODEC unit is operating : 7 mA Typ. (VDD = 3.0 V)
   When in the power down mode : 0.03 mA Typ. (VDD = 3.0 V)
• Package:80-pin plastic TQFP (TQFP80-P-1212-0.50-K) (Product name : MSM7584CTS-K)


Pinout

Connection Diagram


Specifications

Symbol
Parameter
Conditions
Limits
Unit
VDD
 Power Supply Voltage
-
0.3 to +5
V
VAIN
 Analog Input Voltage
0.3 to VDD + 0.3
V
VDIN
 Digital Input Voltage
0.3 to VDD + 0.3
V
TOP
 Operating Temperature
25 to +70
°C
TSTG
 Storage Temperature
55 to +150
°C



Description

The MSM7584C is a CMOS IC developed for use with digital cordless telephones. The device provides a /4 shift QPSK modem function and a CODEC function which performs transcoding between the voice band analog signal and 32 kbps ADPCM data.

The MSM7584C is ideal for use in a handset of the PHS (Personal Handyphone System).




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