TA1310ANG Datasheet, PDF (53/106 Pages) Toshiba Semiconductor – NTSC VIDEO, CHROMA, DEFLECTION, AND DISTORTION COMPENSATION IC (WITH YUV INTERFACE AND ACB)

TA1310ANG
NOTE
ITEM
A₄
Color Adjustment
Characteristics
SW₆
C
SW MODE
SW₄₅ SW₅₂ SW₅₃
1)
2)
3)
4)
A
B
B ⁵⁾
6)
7)
(#16 V_CC = 9 V, #37 V_CC = 9 V, #51 V_CC = 5 V, Ta = 25 ± 3°C)
MEASUREMENT METHOD
Set to external color difference input mode (subaddress (05H), data (81))
Now set as follows :
Unicolor
:
Brightness
:
Relative phase amplitude :
maximum (subaddress (00H), data (3F))
maximum (subaddress (01H), data (7F))
standard (subaddress (12H), data (00)).
Set SW_52A and SW_53A to B. Input signal C-2 to the R-Y input pin (TP52) and the B-Y input pin (TP53).
f₀ = 100 kHz, picture period amplitude = 0.2 V_p-p.
Set the color to the maximum (subaddress (02H), data (7F)). Measure RCmax, the amplitude of the R output (TP13), and
BCmax, and the amplitude of the B output (TP15).
Set the color to the center (subaddress (02H), data (40)). Measure RCcnt, the amplitude of the R output (TP13), and
BCcnt, the amplitude of the B output (TP15).
Set the color to the minimum (subaddress (02H), data (00)). Measure RCmin, the amplitude of the R output (TP13), and
BCmin, the amplitude of the B output (TP15).
Calculate the color adjustment characteristics cR_max, cR_min, cB_max, and cB_min by the following formulas.
cRmax
=
20Log
RCMAX
RCCNT
cRmin
=
20Log
RCMIN
RCCNT
cBmaX
=
20Log
BCMAX
BCCNT
cBmin
=
20Log
BCMIN
BCCNT
Note 1: Where the bus data are not specified, set the preset value.
Note 2: Ensure the sync signal is always input to TP38 (SYNC IN).
53
2005-09-20