SN28835

1/2-INCH NTSC TIMER

SOCS023B – FEBRUARY 1991

10

POST OFFICE BOX 655303

PARAMETER MEASUREMENT INFORMATION

GT2

GT1/SH3

GT3/SH2

SH1

Late

S1

S2

S3

Early

S3

S2

S1

Horizontal

Scale†

Acceptable

17

16

15

± 5 ns

± 5 ns

± 5 ns

35

± 10 ns

± 5 ns

± 5 ns

± 5 ns

± 10 ns

± 5 ns

± 5 ns

± 5 ns

± 5 ns

± 5 ns

± 5 ns

Master

Clock‡

† 130 intervals equal 63.55

µs equals one horizontal-scan line

‡ 910 master-clock periods equal 63.55

µs equals one horizontal-scan line

Figure 6. Timing for S and SH Signals Using Both Early and Late Options