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WT8046N24P1

Synchronous Signal Discriminator with Power Saving Detector and Test Pattern for Green Monitor

Weltrend Semiconductor 

WT8046

Synchronous Signal Discriminator with Power Saving

Detector and Test Pattern for Green Monitor



Name

PM2

PM3

QHRC

QH

640¡ Ñ350

640¡ Ñ480

640¡ Ñ400

640¡ Ñ480

800¡ Ñ600

800¡ Ñ600

800¡ Ñ600

1024¡ Ñ

768(I)

1024¡ Ñ

768(NI)

SG-OUT

Vdd

Function

Indicate in SUSPEND mode

Structure

of

Terminal

O, open drain

Indicate in OFF mode

O, open drain

Input pin, connected to Vdd through RH & to ground through CH. I

Output pin, fixed positive polarity of horizontal signal; pulse width O, open drain

depend upon RH & CH

Mode select control output, if IBM VGA 640¡ Ñ350 mode, or VESA O, open drain

VGA 640¡ Ñ350 mode. Then active "low", else open state output

VESA VGA mode 640¡ Ñ480 (37.5k/72Hz)

O, open drain

If IBM VGA 640¡ Ñ400 mode, or VESA VGA 640¡ Ñ400 mode then O, open drain

active "low" (640¡ Ñ400, 31.5k, for N24P4)

If IBM VGA 640¡ Ñ480 mode, or VESA VGA 640¡ Ñ480 mode then O, open drain

active "low" (640¡ Ñ480, 31.5k, for N24P4)

VESA super VGA mode

(H_SYNC = 35.2k, V_SYNC = 56Hz)

European super VGA mode

(H_SYNC = 37.5k, V_SYNC = 60Hz)

O, open drain

O, open drain

VESA new super VGA mode

(H_SYNC = 48k, V_SYNC = 72Hz)

IBM 8512/A interlace mode

(H_SYNC = 35.5k, V_SYNC = 86Hz)

O, open drain

O, open drain

IBM 8514/A non-interlace mode

(H_SYNC = 48.5k, V_SYNC = 60Hz)

O, open drain

Test Pattern Output

O, Buffer

output

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

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