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零件编号 | MX118P | ||
描述 | Full-Duplex Scrambler | ||
制造商 | MX-COM | ||
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1 Page
MX118
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 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 carrier
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.
www.DataSheet4Figure 1 - Simplified Signal Paths
U.com* Electronics Communications Privacy Act (Title 18 US Code 2510 et seq.).
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页数 | 7 页 | ||
下载 | [ MX118P.PDF 数据手册 ] |
零件编号 | 描述 | 制造商 |
MX118P | Full-Duplex Scrambler | MX-COM |
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