MC44C402 Datasheet, PDF (1/12 Pages) Freescale Semiconductor, Inc – MTS Stereo Encoder

Freescale Semiconductor
Technical Data
MC44C402
Rev 1, 06/2005
MTS Stereo Encoder
The MC44C402 Multi-Channel Television Sound (MTS) Stereo Encoder is
based on the industry’s first, single-chip, CMOS implementation of a Broadcast
Television Systems Committee (BTSC)-compatible stereo encoder, the
MC44C400.
The MC44C402 MTS Stereo Encoder is designed 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.
The digital audio processing used in the MC44C402 preserves the full fidelity
of surround sound and other audio coding schemes while ensuring overall
system performance is not impacted by copy protection technologies.
The MC44C402 is engineered to process right and left analog audio signals
and baseband composite video to generate a stereophonic composite signal in
accordance with BTSC system standards. The MC44C402 is designed to output
this signal to a Freescale RF modulator, which in turn produces a stereo encoded
RF channel for use with any BTSC stereo television receiver.
MC44C402
MTS STEREO ENCODER
Features
• Integrated A/D converter input and D/A converter output circuitry
• CEX™ digital audio processing encodes and transports stereo signals
• Surround sound and Macrovision™ compatible
• Extended low frequency response (The MC44C402 frequency response
extends below 25 Hz)
• Simple passive interface to Freescale’s MC44BS373/4 (UHF/VHF) and
MC44BC375 (VHF) modulators
• Preservation of original surround sound fidelity
• System performance not impacted by copy protection technologies
• Low system component count, small board size, and significantly low overall
system cost
• No manual alignment of filters or phase controls
AC SUFFIX
32-LEAD LQFP PACKAGE
CASE 873A-04
ORDERING INFORMATION
Device
Temp.
Range
Package RoHS
MC44C402AC –40°C 32LQFP yes
to +85°C
MC44C402ACR2 Tape & Reel
yes
Reference Documentation
“Multichannel Television Sound Transmission and Audio Processing Requirements for the BTSC System”, FCC OET Bulletin
No. 60, February 1986.
MC44C402
LEFT
CHANNEL
RIGHT
CHANNEL
COMPOSITE
VIDEO
XTAL
Σ∆ADC
Σ∆ADC
DIGITAL
AUDIO
PROCESSOR
SYNC
SEPARATOR
CLOCK
GENERATOR
Σ∆DAC
COMPOSITE
BTSC
CLOCK
OUT
Functional Block Diagram
This document contains certain information on a new product.
Specifications and information herein are subject to change without notice.
© Freescale Semiconductor, Inc., 2005. All rights reserved.
CVBS
VINR
VAGO
VREFP
VREFM
VAGO
ADCVDD
ADCVSS
PIN 1
ORIENTATION
MARK
25
Freescale
MC44C402
17
9
DVSS
PILOT
CLK4MHZ
DVDD
DVSS
DVSS
DVSS
VID_PRES
MC44C402 32LQFP Package