MX375

Features: ` PRIVATE/CLEAR CAPABILITY` ON-CHIP TX AUDIO PRE/DEEMPHASIS`ALTERNATIVE TO STANDARD CTCSS PARTY LINE `POWERSAVE OPTIONApplication· MOBILE RADIOS· COMMUNITY REPEATERS· TELEPHONE/RADIO INTERCONNECT SYSTEMSSpecifications General Min. Typ. Max. Units Supply Voltage -0.3 7.0 ...

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SeekIC No. : 004431795 Detail

MX375: Features: ` PRIVATE/CLEAR CAPABILITY` ON-CHIP TX AUDIO PRE/DEEMPHASIS`ALTERNATIVE TO STANDARD CTCSS PARTY LINE `POWERSAVE OPTIONApplication· MOBILE RADIOS· COMMUNITY REPEATERS· TELEPHONE/RADIO INTE...

floor Price/Ceiling Price

Part Number:
MX375
Supply Ability:
5000

Price Break

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

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268 Transactions

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Upload time: 2024/12/24

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Product Details

Description



Features:

` PRIVATE/CLEAR CAPABILITY
` ON-CHIP TX AUDIO PRE/DEEMPHASIS
ALTERNATIVE TO STANDARD CTCSS "PARTY LINE"
POWERSAVE OPTION



Application

·   MOBILE RADIOS
·   COMMUNITY REPEATERS
·  TELEPHONE/RADIO INTERCONNECT SYSTEMS



Specifications

General Min. Typ. Max. Units
Supply Voltage -0.3 7.0 V
Input Voltage at any pin -0.3 VDD + 0.3 V
Current  
VDD -30 30 mA
VSS -30 30 mA
Any other pin -20 20 mA
J / P / LH / LH8 Packages
Total allowable Power dissipation
at TAMB = 25
800 mW
Derating above 25   10 mW/ above 25
Operating Temperature -40° 85°
Storage Temperature -55° 125°



Description

The MX375 is a CMOS LSI microcircuit which combines CTCSS Encode/Decode operation with voice band frequency inversion.  Frequency inversion is achieved by modulating the input audio with a 3333 Hz carrier frequency.  Higher voice band frequencies are translated downward, and lower frequencies upward, resulting in a "mirror image" voice transmission.  PvtSQUELCH(TM)combines CTCSS with inverted speech to prevent users from understanding each other's communications unless the transmissions are accompanied by the group's assigned tone.  Its net effect is to eliminate casual eavesdropping and give mobile radio users a certain degree of privacy at a minimal price.  Up to 38 PvtSQUELCH user groups (one per CTCSS tone) can share a single radio channel.  With PvtSQUELCH, competing businesses can share a radio channel without compromising  communications security.

Device features: 1) serial or parallel tone programming capability (serial or parallel offered on MX375J, P & LH8), 2) the ability to operate under NOTONE conditions, 3) on-chip Tx and Rx audio filtering, 4) pin-selectable Private/Clear operation, and 5) pre/deemphasis filters in the Tx path, for optimal recovered audio quality. A low-cost 4 MHz crystal/clock and a  single 5V supply are required for operation.  The MX375 is available in the following package styles:  28-pin PDIP (MX375P), 28-pin CDIP (MX375J) 28-pin PLCC (MX375LH8), and 24-pin PLCC (MX375LH).




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