wt8043 ETC-unknow, wt8043 Datasheet

no-image

wt8043

Manufacturer Part Number
wt8043
Description
Synchronous Signal Discriminator For Multi-sync Display Monitor
Manufacturer
ETC-unknow
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
WT8043
Manufacturer:
WELTREND
Quantity:
20 000
Part Number:
wt8043 448
Manufacturer:
ABOV
Quantity:
8
Part Number:
wt8043-N204
Manufacturer:
WELTREND
Quantity:
20 000
Part Number:
wt8043N20
Manufacturer:
WAITFAND
Quantity:
20 000
Part Number:
wt8043N201
Manufacturer:
LT
Quantity:
48
Part Number:
wt8043N204
Manufacturer:
WAITFAND
Quantity:
20 000
Part Number:
wt8043N208
Manufacturer:
WELTREND
Quantity:
20 000
Part Number:
wt8043N24
Manufacturer:
NS
Quantity:
6 218
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
Application
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.
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
Synchronous Signal discriminator
for Multi-Sync Display Monitor
WT8043
Jan. 30, 1996
1

Related parts for wt8043

wt8043 Summary of contents

Page 1

... 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. ...

Page 2

... Ordering Information Part No. WT8043N16 WT8043N20P1 WT8043N20P4 WT8043N20P7 WT8043N20P8 WT8043N24 Package P-DIP 16L P-DIP 20L Pin Configuration WT8043N20P1 20 OSCin 1 VDD 19 OSCout 1024x768(57K) 2 HSin 18 3 1024x768 (NI) VSin 17 1024x768 ( H_out 800x600(48K) 5 V_out 800x600(37.5K F52K 14 800x600(35K) 7 F45K 8 640x480 13 F36K 12 9 640x400 Vss 10 11 ...

Page 3

... H_out 20 5 1024x768 (I) 1280x1024 19 6 800x600(48K) (64k) 18 800x600(37.5K) V_out 7 8 800x600(35K) F60K 17 16 F52K 9 640x480 15 F45K 10 640x400 14 F36K 11 640x350 Vss F33K 12 13 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 WT8043 2 ...

Page 4

... D T 0~70 OPT T -40~125 STG Symbol Min. Typ. V ( 3.5764 3.58 CLK Hsin-Chu, Taiwan, R.O.C. Tel: 886-35-780241 Fax: 886-35-770419 WT8043 Unit Max. Unit 5 0 KHz 120 Hz 3.5836 MHz ...

Page 5

... OL1 V 2.4 OH1 V OL2 I OL1 ¡ ý I OH1 ¡ ý I OL2 W 0.56 H_SYNC W 0.56 V_SYNC T DHS T VHS V 2.0 UTP V LTP V NM Hsin-Chu, Taiwan, R.O.C. Tel: 886-35-780241 Fax: 886-35-770419 WT8043 Max. Unit 33.05 KHz 36.25 KHz 45.05 KHz 52.05 KHz 62.05 KHz 72.05 KHz 0 0 400 833 ...

Page 6

... Mode seclect control output, if IBM VGA 640x350 mode, or VESA VGA 640x350 mode, then active low, else high state output Weltrend Semiconductor, Inc. 2F., No. 24, Industry E. 9th Rd. Science-Based Industrial Park Function Hsin-Chu, Taiwan, R.O.C. Tel: 886-35-780241 Fax: 886-35-770419 WT8043 Structure of Terminal I I, TTL Compatible I, TTL Compatible O, TTL ...

Page 7

... Hysnc freq. discrimination control output if > 72 kHz then active low, else high 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. (Contd.) Function Tel: 886-35-780241 Fax: 886-35-770419 WT8043 Structure of Terminal O, open drain O, open drain O, open drain O, open drain ...

Page 8

... Time Chart Hin - Hout W H-SYNC IN_H + - IN_H H_OUT T dhs Vin - Vout W V-SYNC IN_V + - IN_V V_OUT T dvs 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 WT8043 7 ...

Page 9

... Structure of Terminal Type 1 Type 2 VDD Type 3 VDD PAD Weltrend Semiconductor, Inc. 2F., No. 24, Industry E. 9th Rd. Science-Based Industrial Park PAD Open Drain NMOS can pull up by external resistor, no connector must be pull down or floating. PAD Hsin-Chu, Taiwan, R.O.C. Tel: 886-35-780241 Fax: 886-35-770419 WT8043 8 ...

Page 10

... 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 WT8043 9 ...

Page 11

... Block Diagram I Figure 1-1 WT8043N20P1 Functional Block Diagram 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 WT8043 10 ...

Page 12

... Block Diagram II Figure 1-2 WT8043N24 Functional Block Diagram 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 WT8043 11 ...

Page 13

... Appication Description General Description Figure 1-1 and 1 simplified functional block diagram of the WT8043. It includes the following functional blocks: sync pulse polarity detector; horizontal and vertical frequency discriminator, mode selector. The Sync pulse polarity detector accepts separete H and V sync signals with any polarities ...

Page 14

... H sync are 33KHz, 36.2KHz, 45KHz, 52KHz, 62KHz and 72KHz. These discriminating points will be able to identify various video modes as shown in Fig. 2. WT8043 also provides the flexibility for users to define these discriminating points through mask option. The tolerance for H sync frequency discrimination is 0.05KHz. For instance, the 33KHz discriminating point will be able to distinguish the H sync frequency that is either " ...

Page 15

... Hsin-Chu, Taiwan, R.O.C. Tel: 886-35-780241 Fax: 886-35-770419 WT8043 -,- +,- -,+ -,- -,+ +,- -,+ -,- -,- 14 ...

Page 16

... MAC II (-,-) 640X480 (38.6k, 72) (-,+) 800X600 800X600 1024X768 (35k, 56) (38k, 60) (48k, 60) 36 640 x 480 640 x 400 Hsin-Chu, Taiwan, R.O.C. Tel: 886-35-780241 Fax: 886-35-770419 WT8043 1280X1024 (64k, 60) Fh(KHz) 62 640 x 350 ...

Page 17

... Science-Based Industrial Park F52K F62K Table 4: H_out V_out Negative polarity Vsin Low state Hsin-Chu, Taiwan, R.O.C. Tel: 886-35-780241 Fax: 886-35-770419 WT8043 F72K ...

Page 18

... Application Circuit I 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 WT8043 17 ...

Page 19

... Application Cirucit II 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 WT8043 18 ...

Page 20

... Dimension in mil * 1mm = 39.37 mil Weltrend Semiconductor, Inc. 2F., No. 24, Industry E. 9th Rd. Science-Based Industrial Park 130 100 130 355 130 100 130 355 130 100 130 355 Hsin-Chu, Taiwan, R.O.C. Tel: 886-35-780241 Fax: 886-35-770419 WT8043 G 300 300 300 19 ...

Related keywords