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參數(shù)資料
| 型號： | MC44BC374CDTB |
| 廠商： | MOTOROLA INC |
| 元件分類： | 消費家電 |
| 英文描述： | PLL Tuned UHF and VHF Audio/Video High Integration Modulator |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO16 |
| 封裝： | TSSOP-16 |
| 文件頁數(shù)： | 3/30頁 |
| 文件大?。?/td> | 915K |
| 代理商： | MC44BC374CDTB |
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Device Overview
MOTOROLA
MC44BC373C/374C Technical Data
For More Information On This Product,
Go to: www.freescale.com
3
2
Device Overview
Figure 2 shows a simplified block diagram of the MC44BC373C/4C device.
The MC44BC373C/4C device has three main sections:
1. A high speed I
2
C-compatible bus section
2. A PLL section to synthesize the UHF/VHF output channel frequency (from an integrated
UHF oscillator, divided for VHF output)
3. A modulator section, which accepts audio and video inputs, then uses them to modulate the
UHF/VHF carrier
An on-chip video test pattern generator with an audio test signal is included.
The MC44BC373C operates as a multi-standard modulator and can handle the following systems using the
same external circuit components: B/G, I, D/K, L, M/N.
High frequency BiCMOS technology allows integration of the UHF tank circuit and certain filtering
functions.
Figure 2. MC44BC373C/4C Simplified Block Diagram
8
13
1
2
6
11
14
9
4
12
7
3
10
15
16
TVOVCC
TVOUT
LOP
VIDEO
SPLLFLT
AUDIO
VCCA
GND
PREEM
XTAL
PLLFLT
GNDD
VCCD
SCL
SDA
BUS SECTION
VCO and PLL SECTION
MODULATOR
SECTION
Clamp
Peak
White
Clip
L/BG
31.25
kHz
31.25KHz
4MHz
XCO
Ref Divider
/128
Phase
Comp
PLL
Prog
Divider
Prescaler/8
VHF Dividers
Video
Modulator
LPF
LPF
Sound
Modulator
L/BG
FM
AM
ALC
LPF
Prog
Divider
AM Modulator
Audio
Amplifier
Sound
Oscillator
and FM
Modulator
Sound
PFD
High Speed
I
2
C Bus
Receiver
UHF OSC
I
2
C
I
2
C
I
2
C BUS
I
2
C BUS
L
I
2
C
75
5
GND
F
Freescale Semiconductor, Inc.
n
.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC44BC374CDTBR2 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MC44BC374CED | 制造商:Motorola Inc 功能描述: |
| MC44BC374CEDR2 | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Motorola Inc 功能描述: 制造商:MOTOROLA 功能描述: |
| MC44BC374DTB | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:Multi-Standard or PAL/ NTSC Modulator with integrated antenna booster/splitter ICs |
| MC44BC374DTBR2 | 制造商:Motorola Inc 功能描述: |
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