WT8043 datasheet(5/20 Pages) ETC

5 / 20 page

WT8043

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

Electrical Characteristics

(VDD=5V, TOPT=25°C, Crystal=3.58MHz)

Item

Symbol

Min.

Typ.

Max.

Unit

F33K

32.95

33.05

KHz

F36.2K

36.15

36.25

KHz

Discrimintaion of H.

F45K

44.95

45.05

KHz

Synchronous Frequency

F52K

51.95

52.05

KHz

F62K

61.95

62.05

KHz

F72K

71.95

72.05

KHz

Output Low (H-out, V-out)

When IOL = 4mA

VOL1

0.4

Output High (H-out, V-out)

When IOH = -400µA

VOH1

2.4

Open Collector Output Low

When IOL = 6mA

VOL2

0.4

Output Sink Current (H-out,

V-out) When VOL1= 0.4V

IOL1

Output Drive Current (H-out,

V-out) When VOH1= 2.4V

¡ ý

IOH1¡ ý

400

µA

Open Drain Sink Current

When VOL2= 0.4V

IOL2

Input H_SYNC Pulse Width

WH_SYNC

0.56

µS

Input V_SYNC Pulse Width

WV_SYNC

0.56

833

µS

H_SYNC, Output Pulse delay,

respect to Hsin

TDHS

V_SYNC, Output Pulse delay,

respect to Vsin

TVHS

Upper Trigger Input Point

(H_IN, V_IN)

VUTP

2.0

Lower Trigger Input Point

(H_IN, V_IN)

VLTP

0.8

Noise Margin (H_IN, V_IN)

VNM

1.75

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