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MX118

Features: ·Full-Duplex Audio Processing·On-Chip Brick-wall Fllters (300-3000Hz)·Low Voltage CMOS·High Baseband and Carriel Rejection·Excellent Audlo Quallty·ECPA*Quallfied Volce ProtectionApplication·Cordless Telephones Wireless PBXs·Battery Powered PortabllltySpecificationsExceeding the maximum ...

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SeekIC No. : 004431519 Detail

MX118: Features: ·Full-Duplex Audio Processing·On-Chip Brick-wall Fllters (300-3000Hz)·Low Voltage CMOS·High Baseband and Carriel Rejection·Excellent Audlo Quallty·ECPA*Quallfied Volce ProtectionApplicati...

MX118 Data Sheet

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Part Number:
MX118
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:

· Full-Duplex Audio Processing
· On-Chip "Brick-wall"Fllters (300-3000Hz)
· Low Voltage CMOS
· High Baseband and Carriel Rejection
· Excellent Audlo Quallty
· ECPA*Quallfied Volce Protection


Application

· Cordless Telephones Wireless PBXs
· Battery Powered Portablllty


Specifications

Exceeding the maximum rating can result in device damage. Operation of the device outside the operating limits is not suggested.
Supply Voltage                                  -0.3 to 7.0 V
Input Voltage at any pin
(Ref. VSS = 0V)                    -0.3V to (VDD + 0.3V)
Output sink/source current
supply pins                                                 ±30m
other pins                                                   ±20m
Total Device Dissipation
       @ 25                                       800mW max
Derating10mW/
Operating Temperature                 -10 to +70
Storage Temperature                    -40 to +85


Description

The MX118 is a full-duplex frequency inversion scram bler that secures cordless telephone conversations.  The two audio paths, C1 and C2, are identical and independ ent.  Each consists of the following:

1) A 10th  order lowpass filter cut off at 3.1 kHz.

2) A balanced modulator with high baseband and carrie rejection.

3) A 3.3 kHz inversion carrier (injection tone).

4) A 14th order bandpass filter (300-3000 Hz).

5) Input op-amps with externally adjustable gain.

The MX118 uses CMOS switched-capacitor filter technology and operates from a single supply in the range of 3.0 V to 5.5 V.  The inversion carrier's frequency and filter switching clock are generated on-chip using an external 4.433619 MHz crystal or clock input.




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