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MC44C404_08 Datasheet, PDF (1/11 Pages) Freescale Semiconductor, Inc – NICAM 728 - Stereo Encoder | |||
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Freescale Semiconductor
Advance Information
NICAM 728 - Stereo Encoder
The MC44C404 NICAM Stereo Encoder is the industryâs first single-chip
CMOS implementation of a Near Instantaneous Companding Audio Multiplex
728 (NICAM) stereo encoder.
⢠Intended for use in set-top 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 a Freescale RF modulator, which in turn
produces a stereo encoded RF channel for use with any NICAM stereo
television receiver.
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)
Document Number: MC44C404
Rev. 0.4, 2/2008
MC44C404
NICAM STEREO ENCODER
EP SUFFIX
32-LEAD TQFN PACKAGE
CASE 1457-01
ORDERING INFORMATION
Device
Temp.
Range
Package RoHS
MC44C404EP 0°C to 32TQFN Yes
+70°C
MC44C404EPR2 Tape & Reel
Yes
AUDIO
A - CHANNEL
AUDIO
B - CHANNEL
MC44C404
룉ADC
룉ADC
NICAM
DIGITAL
AUDIO
PROCESSOR
DAC
QPSK
AUDIO
XTAL
CLOCK
GENERATOR
Functional Block Diagram
CLOCK
OUT
NC
VINB
VAGO
VREFP
VREFM
VAGO
ADCVDD
ADCVSS
MC44C404
DVSS
NC
CLK4MHZ
DVDD
SYS_I
DVSS
DVSS
NC
MC44C404 32TQFN Package
This document contains information on a preproduction product. Specifications and information herein are subject to change without notice.
© Freescale Semiconductor, Inc., 2008. All rights reserved.
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