ta1310ang TOSHIBA Semiconductor CORPORATION, ta1310ang Datasheet - Page 47

• Manufacturer Part Number: ta1310ang
• Description: Ntsc Video, Chroma, Deflection, And Distortion Compensation Ic With Yuv Interface And Acb
• Manufacturer: TOSHIBA Semiconductor CORPORATION

Chroma stage
NOTE
Note 1: Where the bus data are not specified, set the preset values.
Note 2: Ensure the sync signal is always input to TP38 (SYNC IN).
C
C
C
C
C
1
2
3
4
5
ACC Characteristics
Color Difference Output
Level
Color Difference Output
Relative Amplitude
Color Difference Output
Demodulation Angle
Color Difference Output
Relative Phase
ITEM
SW
SW MODE
B
B
B
B
B
45
SW
ON
ON
ON
ON
ON
46
1)
2)
3)
1)
2)
3)
4)
5)
1)
1)
2)
①
Input a rainbow signal (signal C-1) to the chroma input pin (TP45).Burst : chroma = 1 : 1
When the chroma input amplitude levels are set to 10, 30, 300, and 600 mV
amplitudes va10, va30, va300, and va600 of the R-Y output pin (TP48).
Calculate A = va30 / va600.
Input a rainbow signal (signal C-1) to the chroma input pin (TP45).
Burst : chroma = 300 mV
Change the burst phase so that bar 2 of the B-Y output pin (TP47) output waveform is the bottom peak
and bar 7 is the top peak.
Measure the amplitude (v
Set the burst phase to 180°.
Measure the amplitude (v
Calculate the relative amplitude v
5) of C
v
Input a rainbow signal (C-1) to the chroma input pin (TP45).
Burst : chroma = 200 mV
Calculate the demodulation angles θB
(TP48) using the formulas and diagram below.
Calculate the relative phase θ
θ
RB
RB
= v
= θ
2
R
Rcnt
above.
/ v
(#16 V
B
− θ
Bcnt
CC
= 9 V, #37 V
p-p
p-p
B
R
) of the B-Y output pin (TP47).
) of the R-Y output pin (TP48)
: 300 mV
: 200 mV
RB
CC
from the following formula using the values obtained in C
RB
= 9 V, #51 V
MEASUREMENT METHOD
from the following formula using the values obtained in steps 3) and
47
p-p
p-p
cnt
and θR
CC
cnt
= 5 V, Ta = 25 ± 3°C)
of the B-Y output pin (TP47) and the R-Y output pin
p-p
, measure the output
4
above.
TA1310ANG
2005-09-20