TA1276AFG Datasheet, PDF (69/83 Pages) Toshiba Semiconductor – PAL/NTSC Video Chroma And Deflection IC For CTV

Note
Parameter
TA1276AFG
SW₁₆
Test Conditions (unless otherwise stated, V_CC1 = 5 V, V_CC2/V_CC3/DEF V_CC = 9 V, Ta = 25 ± 3°C)
Switching Mode
SW₁₇ SW₁₈ SW₂₀ SW₂₃ SW₂₅
Test Conditions
Under the same conditions as those for D₆, measure the phase difference HP_S and HP_W50 of the
horizontal blanking pulse.
Also measure HP_W60 at 60 Hz.
Horizontal Blanking Pulse
Start Phase
D₇
Pulse Width of Horizontal
Blanking Pulse
D
C
ON ON
A
ON
Pin 49
Waveform
Pin 70
Output Waveform
HP_S
52
˓^M
Pin 52
TP52
TG7
([illegible] input)
HP_W
8.3 V
4.5 V
0V
Apply a 50 Hz composite video signal to TP52, then
measure the phase difference HP_S and the pulse width
HP_W/V_HD of the pin 49 (HD out) waveform in relation to
the pin 45 (AFC1 filter) waveform.
HD Output Start Phase
D₈ HD Output Pulse Width
HD Output Amplitude
45
↑
↑
↑
↑
↑
↑
49
Pin 45
(AFC1 filter)
Pin 52 Input
Waveform
Pin 49
(HD output)
Pin 45
Waveform
HP_S
Pin 49 Output
Waveform
63.5 µs
4.7 µs
HP_W
0.25 V
V_HD
69
2002-04-01