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WT8045 Datasheet(PDF) 11 Page - List of Unclassifed Manufacturers

Part # WT8045
Description  Synchronous Signal Discriminator and Power Saving Detector for Green Monitor
PDF  25 Pages
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Manufacturer  ETC [List of Unclassifed Manufacturers]
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WT8045 Datasheet(HTML) 11 Page - List of Unclassifed Manufacturers

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WT8045
Synchronous
Signal
Discriminator
and
Power Saving Detector for Green Monitor


Weltrend
Semiconductor,
Inc.
2F., No. 24, Industry E. 9th Rd.
Science-Based Industrial Park
Hsin-Chu, Taiwan, R.O.C.
Tel:
886-35-780241
Fax: 886-35-770419
11
APPLICATION INFORMATION
Struncure
Name
Function
of
Terminal
OSCin
A clock generating circuit is built into the chip. So if a resonator is
connected to OSCin/OSCout, a clock signal can be obtained
I
OSCout
Refer to OSCin pin
O
Hsin
Input terminal of horizontal synchronous signal
I, TTL
compatible
Vsin
Input terminal of vertical synchronous signal
I, TTL
compatible
H_OUT
Output pin, fixed negative polarity of original H_SYNC signal with
same pulse width (but, positive for N28P2, N28P6,N28P7 and
N28P8)
I, TTL
compatible
V_OUT
Output pin, fixed negative polarity of original V_SYNC signal with
same pulse width (but, positive for N28P2, N28P6,N28P7 and
N28P8)
O, TTL
compatible
F43.5k
>43.5k then active low, <43.5k then high
O, open drain
F36.2k
>36.2k then active low, <36.2k then high
O, open drain
F33k
>33k then active low, <33k then high
O, open drain
QV
Output pin, fixed positive polarity of vertical signal; pulse width
depend upon RV & CV.
O, open drain
QVRC
Input pin, connected to Vdd through RV & to ground through
CV I
Vss
Ground
SELPIN
Input pin, to select which one of H_SYNC or V_SYNC appears on
the output pin of QV; N.C. selects the V-SYNC on the output,
grounding selects the H_SYNC.
I,
(N.C.-no
connection)
-QH
Output pin, fixed negative polarity of horizontal signal; pulse width
depend upon RH & CH.
O, open drain
F52k
>52k then active low, <52k then high
O, open drain
F60k
>60k then active low, < 60k then high
O, open drain
PM1
Indicate in STAND-BY mode
O, open drain



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