63

Typical Input Signal Timing

 

 

VGA Compatible

 

XGA-2 Compatible

 

Mac , Quadra,

 

 

 

 

or LC Compatible

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Resolution

640×350

 

720×400

 

640×480

720×350

720×400

 

640×480

640×480

 

 

 

 

 

 

 

 

 

 

 

Horizontal Frequency

31.469KHz

 

31.469KHz

 

31.469KHz

39.444KHz

39.444KHz

 

39.375KHz

35.000KHz

 

 

 

 

 

 

 

 

 

 

 

(A) Horizontal Period

31.778sec

 

31.778sec

 

31.778sec

25.352sec

25.352sec

 

25.397sec

28.570sec

 

 

 

 

 

 

 

 

 

 

 

(B) Horizontal Pulse Width

3.813sec

 

3.813sec

 

3.813sec

3.042sec

3.042sec

 

3.048sec

2.120sec

 

 

 

 

 

 

 

 

 

 

 

(C) Horizontal Back Porch

1.589sec

 

1.589sec

 

1.589sec

1.522sec

1.522sec

 

1.524sec

3.170sec

 

 

 

 

 

 

 

 

 

 

 

(D) Horizontal Active Area

26.058sec

 

26.058sec

 

26.058sec

20.282sec

20.282sec

 

20.317sec

22.810sec

 

 

 

 

 

 

 

 

 

 

 

(E) Hrizontal Front Porch

0.318sec

 

0.318sec

 

0.318sec

0.508sec

0.508sec

 

0.508sec

0.180sec

 

 

 

 

 

 

 

 

 

 

 

 

VESA

VESA

VESA

VESA

MAC

8514/A & XGA

VESA

 

HDTV

 

640×480

800×600

800×600

800×600

&

Interlaced

1024×768

HDTV

 

Interlaced

 

at 72Hz

at 56Hz

at 60Hz

at 72Hz

Quadra

Compartible

at 60Hz

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Resolution

640×480

800×600

800×600

800×600

832×624

1024×768

1024×768

1028×720

1920×1080

 

 

 

 

 

 

 

 

 

 

Horizontal Frequency

37.860KHz

35.156KHz

37.879KHz

48.077KHz

49.725KHz

35.587KHz

48.363KHz

45.000KHz

33.750KHz

 

 

 

 

 

 

 

 

 

 

(A) Horizontal Period

26.413sec

28.444sec

26.400sec

20.800sec

20.111sec

28.100sec

20.677sec

22.222sec

29.630sec

 

 

 

 

 

 

 

 

 

 

(B) Horizontal Pulse Width

1.270sec

2.000sec

3.200sec

2.400sec

1.117sec

3.910sec

2.092sec

1.077sec

1.185sec

 

 

 

 

 

 

 

 

 

 

(C) Horizontal Back Porch

4.063sec

3.556sec

2.200sec

1.280sec

3.910sec

1.247sec

2.462sec

2.963sec

1.993sec

 

 

 

 

 

 

 

 

 

 

(D) Horizontal Active Area

20.317sec

22.222sec

20.000sec

16.000sec

14.524sec

22.760sec

15.754sec

17.226sec

25.845sec

 

 

 

 

 

 

 

 

 

 

(E) Horizontal Front Porch

0.762sec

0.667sec

1.000sec

1.120sec

0.559sec

0.178sec

0.369sec

0.956sec

0.606sec

 

 

 

 

 

 

 

 

 

 

*VGA, XGA, XGA-2, and 8514/A are the trademarks of International Business Machines Corporation. *Macintosh II, Quadra, and LC are the trademarks of Apple Computer Inc.

*VESA is the trademark of a non-profit organization, Video Electronics Standards Association.

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