MC44C404 FREESCALE [Freescale Semiconductor, Inc], MC44C404 Datasheet

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MC44C404

Manufacturer Part Number
MC44C404
Description
Stereo Encoder
Manufacturer
FREESCALE [Freescale Semiconductor, Inc]
Datasheet
Freescale Semiconductor
Advance Information
© Freescale Semiconductor, Inc., 2007. All rights reserved.
NICAM 728 - Stereo Encoder
CMOS implementation of a Near Instantaneous Companding Audio Multiplex
728 (NICAM) stereo encoder.
Features
Benefits
Reference Documentation
television systems B, G, H, I, K1 and L. (EN 300 163 V1.2.1)
This document contains information on a preproduction product. Specifications and information herein are subject to change without notice.
Th
NICAM 728: Transmission of two-channel digital sound with terrestrial
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.
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
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
e MC44C404 NICAM Stereo Encoder is the industry’s first single-chip
A - CHANNEL
B - CHANNEL
AUDIO
AUDIO
XTAL
Σ∆ADC
Σ∆ADC
Functional Block Diagram
MC44C404
PROCESSOR
GENERATOR
DIGITAL
CLOCK
NICAM
AUDIO
DAC
QPSK
AUDIO
CLOCK
OUT
ADCV
ADCV
VREFM
VREFP
VAGO
VAGO
VINB
NC
DD
SS
MC44C404EPR2
MC44C404 32TQFN Package
MC44C404EP
Device
NICAM STEREO ENCODER
ORDERING INFORMATION
Document Number: MC44C404
MC44C404
32-LEAD TQFN PACKAGE
MC44C404
CASE 1457-01
EP SUFFIX
Temp.
Range
0
+70°C
°C to
Tape & Reel
Rev. 0.3, 11/2007
Package RoHS
32TQFN
DV
NC
CLK4MHZ
DV
SYS_I
DV
DV
NC
SS
DD
SS
SS
Yes
Yes

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MC44C404 Summary of contents

Page 1

... Freescale Semiconductor Advance Information NICAM 728 - Stereo Encoder Th e 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 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. • ...

Page 2

... VAGO 3 ADCV SYS_I MC44C404 2 MC44C404 4 MHz Clock Generator Σ∆ ADC Σ∆ ADC NICAM 728 Audio Processor Figure 1. MC44C404 Block Diagram 22 CLK4MHZ QPSK DAC ...

Page 3

... MC44C404 VREFM VAGO ADCV DD ADCV SS Figure 2. MC44C404 32-Lead TQFN Package A channel input ADC voltage ref. bypass plus Analog virtual ground ADC voltage ref. bypass minus B channel input Control inputs 1, 2 and 3. See Table 2, Application Control Bits for setting these application control bits. ...

Page 4

... Digital Output Supply Current ADC Supply Current ADC Voltage Ref. Bypass Plus ADC Voltage Ref. Bypass Minus ADC Voltage Ref. Ground CLK4MHZ, Clock Output Low @ I = 0.6 mA CLK4MHZ, Clock Output High @ I = 0.6 mA MC44C404 4 C3 Contents of the 704-Bit Sound/Data Blocks 0 Stereo signal 0 Two independent mono sound signals ...

Page 5

... Unless other wise noted 1.8 + 0.18 Vdc Table 7. AC Characteristics (Test setup as shown in Figure 3, MC44C404 Typical Application Circuit for B, G and H Systems) (1) Characteristic Input Impedance (A/B Input) (2) QPSK Audio Output Level QPSK Output Level (2),(3) Signal to Noise Ratio (2),(3) Total Harmonic Distortion -1 dB Bandwidth 1 ...

Page 6

... C4 SIGNAL STANDARD SYS_I = 0 SYSTEMS SYS_I = 1 SYSTEM I CVBS IN 75 Ω BPF1 - PAL 1.5 KΩ µ 2.0 KΩ 680 pF 680 pF Figure 3. MC44C404 Typical Application Circuit for B, G and H Systems MC44C404 6 1 µF µ µ 0.1 F 0.1 F µ 0 QPSK MC44C404 22 CLK4MHZ Video Notch 24 MHz 2 MΩ ...

Page 7

... Freescale Semiconductor PACKAGE DATA MC44C404 7 ...

Page 8

... MC44C404 8 Freescale Semiconductor ...

Page 9

... Freescale Semiconductor MC44C404 9 ...

Page 10

... MC44C404 10 Freescale Semiconductor ...

Page 11

... Freescale Semiconductor Literature Distribution Center P.O. Box 5405 Denver, Colorado 80217 1-800-441-2447 or 303-675-2140 Fax: 303-675-2150 LDCForFreescaleSemiconductor@hibbertgroup.com MC44C404 Rev 0.3 11/2007 Information in this document is provided solely to enable system and software implementers to use Freescale Semiconductor products. There are no express or implied copyright licenses granted hereunder to design or fabricate any integrated circuits or integrated circuits based on the information in this document ...

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