MC44C404: NICAM Stereo Encoder ARCHIVED

Overview

The MC44C404 NICAM Stereo Encoder is the industry's first, single-chip, CMOS implementation of a Near Instantaneous Companding Audio Multiplex 728 (NICAM) stereo encoder.

Intended for use in settop boxes, VCRs, DVD players/recorders, game stations, and, other applications that are required to output high quality stereo sound through a single RF coaxial cable.
Engineered to process analog audio signals to generate a QPSK modulated signal in compliance with the EN 300 163 standard.
Designed to output this signal to an NXP^® RF modulator, which in turn produces a stereo encoded RF channel for use with any NICAM stereo television receiver.

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Features

Supports B, G, H, I, K1, L system standards
NICAM digital audio processing encodes and transports stereo signals
Integrated A/D converter input and D/A converter output circuitry
Extended low frequency response (below 25 Hz)
Simple passive interface to MC44BS373/4 UHF modulators
Low power consumption - typically <50 mW
RoHS compliant

Benefits

Preservation of original surround sound fidelity
Multi standard
Low system component count, small board size, and significantly low overall system cost
No manual alignment of filters or phase controls

Reference Documentation
NICAM 728: Transmission of two-channel digital sound with terrestrial television systems B, G, H, I, K1 and L. (EN 300 163 V1.2.1)

MoreLess

Features

Supports B, G, H, I, K1, L system standards
NICAM digital audio processing encodes and transports stereo signals
Integrated A/D converter input and D/A converter output circuitry
Extended low frequency response (below 25 Hz)
Simple passive interface to MC44BS373/4 UHF modulators
Low power consumption - typically <50 mW
RoHS compliant

Benefits

Preservation of original surround sound fidelity
Multi standard
Low system component count, small board size, and significantly low overall system cost
No manual alignment of filters or phase controls

Reference Documentation
NICAM 728: Transmission of two-channel digital sound with terrestrial television systems B, G, H, I, K1 and L. (EN 300 163 V1.2.1)

Data Sheets