
TA1360AFG
2005-08-18
89
Test Conditions
SW Mode
Note
No.
Characteristics
SW68
SW67
SW66
SW26
SW25
SW24
SW21
SW19
SW18
Test Method
T27
Text ACL
characteristic
A
B
A
B
A
1.
Input signal 1(f0 = 100 kHz, picture period amplitude = 0.2 Vp-p) from pin 68. Control drive
gain adjustment data so that pins 14 and 13 picture period amplitude equals that of pin 12.
2.
Apply 5-V external voltage to pin 2.
3.
Input signal 1(f0 = 100 kHz, picture period amplitude = 0.2 Vp-p) from pin 24.
4.
Measure pin 12 picture period amplitude, vTXACL1.
5.
Apply “pin 78 DC voltage
0.8 V” to pin 78 from external power supply, and measure pin
12-picture period amplitude, vTXACL2.
6.
Apply “pin 78 DC voltage
1.3 V” to pin 78 from external power supply, and measure pin
12-picture period amplitude, vTXACL3.
7.
TXACL1 = 20 × og
l
(vTXACL2/vTXACL1)
TXACL2 = 20 × og
l
(vTXACL3/vTXACL1)
T28
Analog OSD
gain
A
B
A
or
B
A
or
B
A
or
B
1.
Input signal 1(f0 = 100 kHz, picture period amplitude = 0.2 Vp-p) from pin 68. Control drive
gain adjustment data so that pins 14 and 13 picture period amplitude equals that of pin 12.
2.
Apply 5-V external voltage to pins 1 and 80.
3.
Input signal 1(f0 = 100 kHz, picture period amplitude = 0.2 Vp-p) from pin 18.
4.
Measure pin 12 picture period amplitude, v12R.
5.
Repeat the steps 3 and 4 above with the following pins: Input from pin 19, and measure pin
13. Input from pin 21 and measure pin 14. (v13G and v14B)
6.
Calculate the following equations.
GOSDR = v12R/0.2 GOSDG = v13G/0.2 GOSDB = v14B/0.2
T29
Analog OSD
input white
peak slice
level
A
B
A
1.
Input signal 1(f0 = 100 kHz, picture period amplitude = 0.2 Vp-p) from pin 68. Control drive
gain adjustment data so that pins 14 and 13 picture period amplitude equals that of pin 12.
2.
Apply 5-V external voltage to pins 1 and 80.
3.
Input signal 2 from pin 18. Gradually increase picture amplitude, and measure picture period
amplitude voltage when output from pin 12 is clipped.
4.
Repeat the step 3 above with the following pins: Input from pin 19, and measure pin 13. Input
from pin 21, and measure pin 14.
T30
Analog OSD
black peak
limit level
A
B
A
1.
Input signal 1(f0 = 100 kHz, picture period amplitude = 0.2 Vp-p) from pin 68. Control drive
gain adjustment data so that pins 14 and 13 picture period amplitude equals that of pin 12.
2.
Apply 5-V external voltage to pins 1 and 80.
3.
Input signal 2 from pin 18. Gradually decrease picture amplitude, and measure picture period
amplitude voltage when output from pin 12 is clipped.
4.
Repeat the step 3 above with the following pins: Input from pin 19, and measure pin 13. Input
from pin 21, and measure pin 14.