Datasheet Summary
FULL-DUPLEX SCRAMBLER FOR CORDLESS TELEPHONES
Features
Full-Duplex Audio Processing On-Chip “Brick-wall” Filters (300-3000 Hz) Low Voltage CMOS High Baseband and Carrier Rejection Excellent Audio Quality ECPA- Qualified Voice Protection
Applications
Cordless Telephones & Wireless PBXs Battery Powered Portability
MX118P (16 pin PDIP)
MX118DW (SOIC-16)
Description
The MX118 is a full-duplex frequency inversion scrambler that secures cordless telephone conversations. The two audio paths, C1 and C2, are identical and independent. 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 carrier rejection.
3) A...