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WT8043N24 데이터시트 PDF




ETC에서 제조한 전자 부품 WT8043N24은 전자 산업 및 응용 분야에서
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부품번호 WT8043N24 기능
기능 Synchronous Signal discriminator for Multi-Sync Display Monitor
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WT8043N24 데이터시트, 핀배열, 회로
WT8043
Synchronous Signal discriminator
for Multi-Sync Display Monitor
Jan. 30, 1996
Description
The WT8043 is a silicon monolithic circuit designed for synchronous signal
processing of multi-sync display monitors capable of coping with many kinds of PC's
and workstations. It can be applied to display monitors supporting standard IBM
VGA, VESA super VGA and IBM 8514/A video modes. It can also be used in other
high-end display monitors supporting non-standard video modes with user-defined
horizontal/vertical frequency ranges.
WT8043 incorporates many functional circuits, horizontal/vertical frequency
discrimination, display mode selection, and synchronous pulse polarity detection, into
a single chip. Therefore, by using WT8043, monitor makers can shrink the PC board
size, reduce the material cost with fewer components, and reduce labor cost as well.
Features
Accepting separate H&V Synchronous signals with any polarities
Support VESA VGA (640x480, 640x400, 640x350), VESA SVGA (800x600),
European SVGA (800x600), VESA new SVGA (800x600), XGA (1024x768)
and 1280x1024.
Also including NEC (24K) mode, 3 VESA New 75Hz timing modes and Apple
MAC II (35k) mode.
Capable of processing horizontal frequency from 25KHz to 80KHz
Capable of processing vertical frequency from 50Hz to 120Hz
Standard IBM video mode control outputs (1024x768, 640x480, 640x400,
640x350)
Six non-standard horizontal frequency control outputs with predefined frequency
range. (users can define their own horizontal frequency range)
Fixed polarity horizontal and vertical synchronous signals output
Power supply voltage: 5V, but mode select control output and frequency
discrimination control output, these open collector outputs can be combined with
pull high resistor, pull up to 12V.
Application
Auto size control for Multi-Sync Display Monitors
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
1




WT8043N24 pdf, 반도체, 판매, 대치품
WT8043
Absolute Maximum Ratings
Item
Digital Supply Voltage
Horizontal Sync. Input Voltage
Vertical Sync. Input Voltage
Power Dissipation
Operating Temperature Range
Storage Temperature Range
Symbol
VDD
VHS
VVS
PD
TOPT
TSTG
Value
5.5
VDD(5)+0.3
VDD(5)+0.3
300
0~70
-40~125
Unit
V
V
V
mW
°C
°C
Recommended Operating Conditions
Item Symbol Min. Typ. Max. Unit
Digital Supply Voltage
VDD (5) 4.5 5 5.5 V
Supply Current (Oscillator on) IP
mA
Synchronous Input Voltage
Low
VIL
0.8 V
Synchronous Input Voltage
High
VIH 2.4 4 5.0 V
Horizontal Synchronous
Frequency Range
FH 25 - 80 KHz
Vertical Synchronous
Frequency Range
FV 50 - 120 Hz
Crystal Clock Frequency
FCLK 3.5764 3.58 3.5836 MHz
Open Drain Pull High Voltage VOH
8 12 V
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
3

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WT8043N24 전자부품, 판매, 대치품
WT8043
(Contd.)
Name
Function
Structure
of
Terminal
NEC
NEC 640 x 400, 24.8kHz/ 56.4Hz timing mode
O,
open drain
640 x 400 If IBM VGA 640 x 400 mode, or VESA VGA 640 x
O,
400 mode then active "low"
open drain
640 x 480 If IBM VGA 640 x 480 mode, or VESA VGA 640 x
O,
480 mode then active "low"
open drain
800 x 600 VESA super VGA mode Hsync freq. 35kHz
O,
open drain
800 x 600 European super VGA mode Hsync freq. 37.5kHz
O,
open drain
800 x 600 VESA new 75Hz Timing mode
O,
(46.8k,75)
open drain
800 x 600 VESA new super VGA mode Hsync freq. 48kHz
O,
open drain
1024x768 (I) IBM 8514/A interlace mode
O,
open drain
1024x768 IBM 8514/A non-interlace mode
O,
(NI) open drain
1024x768 XGA 1024x768 mode Hsync freq. 57kHz
O,
(57k)
open drain
1024x768 VESA new 75Hz Timing mode
O,
(60k, 75)
open drain
F72K
Hysnc freq. discrimination control output if > 72 kHz O,
then active low, else high
open drain
VDD
5 Volts power supply
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
6

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