Details, datasheet, quote on part number: FX128
PartFX128
CategoryCommunication => Telephony
DescriptionCordless Telephone Scrambler
CompanyConsumer Microcircuits Limited
DatasheetDownload FX128 datasheet
Quote
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Features, Applications

Features

Full-Duplex Audio Processing On-Chip Filters Carrier Rejection >55dB Uses IF (10.24 MHz) Clock Excellent Audio Quality Low Power Operation (3.0V) Battery Powered Portability

Applications
Cordless Telephones Wireless PBX Two-Way Radio Leisure Radio (FRS, GMRS, MURS, PMR446)

1.1 Brief Description The is a full-duplex frequency inversion scrambler designed to provide secure conversations. The Rx and Tx audio paths consist of the following: 1. A switched-capacitor balanced modulator with high baseband and carrier rejection. A 3.3 kHz inversion carrier (injection tone). 3100 Hz lowpass filter. 4. Input op-amps with externally adjustable gain. The FX/MX128 uses mixed signal CMOS switched-capacitor filter technology and operates from a single supply in the range to 5.5 volts. The inversion carrier's frequency and filter switching clock are generated on-chip using an external 10.24 MHz or 3.58/3.6864 MHz crystal or clock input (selectable). This device is available in the following package styles: 16-pin SOIC,TSSOP and PDIP.

Block Diagram.......................................................................................................... 3 Signal List................................................................................................................. 4 External Components.............................................................................................. 5 Application............................................................................................................... 6 Application Notes.................................................................................................... 6 Performance Specification...................................................................................... 7


 

Related products with the same datasheet
MX128
MX128DW
MX128P
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