TA1383AFG Datasheet, PDF (33/47 Pages) Toshiba Semiconductor – NTSC Chroma Decoder, Multi-Point Scan Sync Processor, H/V Frequency Counter IC for Color TV

Note No.
Characteristic
SY03 Delayed HD pulse width
TA1383AFG
SW2
C
SW Mode
SW4 SW9
C
ON
SW30
Test Method
A (1) Set SA 00H data to C0H and input 15.734-kHz composite video signal to D-SYNC1/Y3 IN.
(2) Determine pulse width W_d-HD0 of delayed HD from #9 (AFC FILTER) pin waveform.
(3) Set SA 00H data to C2H and input signal c (T = 31.75 µs, t = 2.35 µs) to D-SYNC1/Y3 IN.
(4) Determine pulse width W_d-HD1 of delay HD from #9 (AFC FILTER) pin waveform.
(5) Set SA 00H data to C4H and input signal c (T = 29.63 µs, t = 2 µs) to D-SYNC1/Y3 IN.
(6) Determine pulse width W_d-HD2 of delay HD from #9 (AFC FILTER) pin waveform.
(7) Set SA 00H data to C6H and input signal c (T = 22.22 µs, t = 1.65 µs) to D-SYNC1/Y3 IN.
(8) Determine pulse width W_d-HD3 of delay HD from #9 (AFC FILTER) pin waveform.
T
t
Signal c
#9 Pin Waveform
0.286 V
W_d-HD*
33
2005-09-05