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參數(shù)資料
| 型號： | VT5F9MN0007 |
| 廠商： | SHARP ELECTRONICS CORP |
| 元件分類： | 調(diào)制器/解調(diào)器 |
| 英文描述： | RF/MICROWAVE MODULATOR |
| 文件頁數(shù)： | 1/5頁 |
| 文件大?。?/td> | 0K |
| 代理商： | VT5F9MN0007 |
RF Data Sheet
1
VT5F9MN0006/07
RF Data Sheet
RF Modulator
FEATURES
Stabilized, compact, and lightweight design.
A board-in type mountable directly on the mother
board of the set.
Bus noise elimination through the use of a built-in
white clip circuit.
Usable for many purposes such as BS, CATV, etc.,
in addition to VCR and laser disc.
FUNCTIONAL DESCRIPTION
This modulator is designed for operation in NTSC-M
systems. An RF antenna input is provided by an F
Female connector and the combined RF output is pro-
vided on an F connector. The antenna input signals
appear on the RF output when the modulator portion is
not operating, allowing for transparent operation with
other household video appliances. When the modula-
tor is in use, the modulated signal is seen at output and
the antenna input spectrum is suppressed.
A tuner-out port is included in the VT5F9MN0007 as
this unit is intended for applications where a local tuner
capability is desired, such as in a combine VCR prod-
uct. The tuner-out port is a sample of the antenna input
spectrum and is always active. The modulator may also
be used in satellite television applications. The output
channel may be selected between NTSC channels 3
and 4, as designated in North America. The modulator
operates from a +5 V source.
Figure 1. Block Diagram
VIDEO
CLAMPER
WHITE
CLIPPER
RF CARRIER
OSC
PRE-
EMPHASIS
VIDEO
IN
AUDIO
IN
MOD20-3
FM
MODULATOR
SAW
RESONATOR
MODULATOR
ANTENNA
IN
DISTRIBUTOR
RF SW
HIGH
PASS FILTER
BANDPASS
FILTER
AMP
TUNER
OUT
TV
OUT
CH SW
TANK
(4.5 MHz)
RF SW
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