ta1383afg TOSHIBA Semiconductor CORPORATION, ta1383afg Datasheet - Page 35

• Manufacturer Part Number: ta1383afg
• Description: Ntsc Chroma Decoder, Multi-point Scan Sync Processor, H/v Frequency Counter Ic For Color Tv
• Manufacturer: TOSHIBA Semiconductor CORPORATION

Note No.
SY06
SY07
1125I/60-Hz
horizontal sync separation level
1125I/60-Hz
vertical sync separation level
Characteristic
SW2
C
C
SW4
C
C
SW Mode
SW9
ON
ON
SW30
A
A
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10) Repeat steps (3) and (4) above and determine sync separation level VthH23.
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10) Repeat steps (3) and (4) above and determine sync separation level VthV23.
Set SA 00H data to C4H.
Input 33.75-kHz (1125I/60-Hz) video signal to D-SYNC1/Y3 IN. Monitor #30 (D-SYNC1/Y3 IN) and measure
sync tip DC voltage Vsync30.
Apply external voltage to #30 via 100 kΩ. Increase voltage from Vsync30.
Monitor #17 (HD OUT). When phase is unlocked from input sync signal, measure #30 sync tip voltage.
Determine difference from Vsync30, VthH20.
Set SA 01H data to 90H.
Repeat steps (3) and (4) above and determine sync separation level VthH21.
Set SA 01H data to A0H.
Repeat steps (3) and (4) above and determine sync separation level VthH22.
Set SA 01H data to B0H.
SA 00H data to C4H.
Input 33.75-kHz (1125I/60-Hz) video signal to D-SYNC1/Y3 IN. Monitor #30 (D-SYNC1/Y3 IN) and measure
sync tip DC voltage Vsync30.
Apply external voltage to #30 via 100 kΩ. Increase voltage from Vsync30.
Monitor #17 (HD OUT). When phase is unlocked from input sync signal, measure #30 sync tip voltage.
Determine difference from Vsync30, VthV20.
Set SA 01H data to 84H.
Repeat steps (3) and (4) above and determine sync separation level VthV21.
Set SA 01H data to 88H.
Repeat steps (3) and (4) above and determine sync separation level VthV22.
Set SA 01H data to 8CH.
35
Test Method
TA1383AFG
2005-09-05