參數(shù)資料
型號: MC44BC374DTB
廠商: MOTOROLA INC
元件分類: 消費(fèi)家電
英文描述: Multi-Standard or PAL/ NTSC Modulator with integrated antenna booster/splitter ICs
中文描述: SPECIALTY CONSUMER CIRCUIT, PDSO24
封裝: TSSOP-24
文件頁數(shù): 3/24頁
文件大?。?/td> 635K
代理商: MC44BC374DTB
Device Overview
MOTOROLA
MC44BC373/374
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 MC44BC373/4 device.
The MC44BC373/374 device contains four main sections:
1. A high-speed I
2
C-compatible bus section.
2. A PLL section — Synthesizes the UHF/VHF output channel frequency (from an integrated
UHF oscillator, divided for VHF output).
3. A modulator section — Accepts audio and video inputs and then uses those inputs to
modulate the UHF/VHF carrier.
4. An Antenna Booster/Splitter — Amplifies and splits the antenna signal into two signals:
a) The modulated signal is added to the amplified antenna signal on the TVOUT pin.
a)
The following items are programmable using the high-speed I
2
C compatible bus:
Channel frequency
Sound frequency
Sound/picture carrier ratio
An on-chip video test pattern generator with an audio test signal is included.
The MC44BC373 operates as a multi-standard modulator and can handle the following systems using the
same external circuit components:
B/G
I
D/K
H
L
M/N
The high frequency BiCMOS technology permits integration of the following functions:
Antenna Booster/Splitter
UHF tank circuit and certain filtering
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
MC44BC374DTBR2 制造商:Motorola Inc 功能描述:
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