TMS3471C

2/3-INCH NTSC TIMER

SOCS028B – AUGUST 1991

11

POST OFFICE BOX 655303

244

243

12

244

243

2

1

DPI

ABIN

GT

PI

PS

T

Vertical-Dump

Frequency

(2.04545 MHz

or 1.02273 MHz)

(see Note A)

Odd Field

(see Note B)

Even Field

GP

DAB

tr ≤ 2H

NOTES: A. When the vertical-dump frequency is 1.02273 MHz, PI, PS, and T have a 50% duty cycle.

B. If I/N is low, the DPI waveform is always as shown for the odd-field case.

Figure 5. PI, PS, T, and ABIN Timing