TA1310ANG
2005-09-20
49
(#16 VCC = 9 V, #37 VCC = 9 V, #51 VCC = 5 V, Ta = 25 ± 3°C)
SW MODE
NOTE
ITEM
SW45 SW46
MEASUREMENT METHOD
C10
Color Difference Output
Voltage Difference in 1H
Period
B
ON
1)
Input no more than 300-mVp-p as a burst signal to chroma input pin (TP45).
2)
Measure the DC voltage difference (vBH) between the H blanking period and picture period of the B-Y
output pin (TP47).
3)
Measure the DC voltage difference (vRH) between the H blanking period and picture period of the R-Y
output pin (TP48).
C11
Color Difference Output
Voltage Difference Every
1H Period
B
ON
1)
Input no more than 300-mVp-p as a burst signal to chroma input pin (TP45).
2)
Measure the DC voltage difference (vBG) between the H picture period and H + 1 picture period of the
B-Y output pin (TP47).
3)
Measure the DC voltage difference (vRG) between the H picture period and H + 1 picture period of the
R-Y output pin (TP48).
C12
Color Difference Output DC
Voltage
B
ON
1)
Input no more than 300-mVp-p as a burst signal to chroma input pin (TP45).
2)
Measure the picture period DC voltage VB of the B-Y output pin (TP47).
3)
Measure the picture period DC voltage VR of the R-Y output pin (TP48).
C13
Difference between DC
Voltage Axes of Color
Difference Output
B
ON
1)
Use the following formula to calculate the difference (VRB) between the voltage axes from the following
formula using the values obtained in C12 above.
VRB = VR VB
C14 X’tal Free-Run Frequency
A
ON
1)
No signal input to the chroma input pin (TP45) (set SW45 to A).
2)
Observe the CW output pin (TP50) and measure the output frequency Xf.
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).