TA1310ANG Datasheet, PDF (55/106 Pages) Toshiba Semiconductor – NTSC VIDEO, CHROMA, DEFLECTION, AND DISTORTION COMPENSATION IC (WITH YUV INTERFACE AND ACB)

TA1310ANG
NOTE
ITEM
A₈
RGB Output Demodulation
Angle
SW₆
C
SW MODE
SW₄₅ SW₅₂ SW₅₃
1)
2)
3)
B
A
A
1)
(#16 V_CC = 9 V, #37 V_CC = 9 V, #51 V_CC = 5 V, Ta = 25 ± 3°C)
MEASUREMENT METHOD
Input a rainbow signal (signal C-1) to the chroma input pin (TP45).
Burst : chroma = 200 mV_p-p : 200 mV_p-p.
Now set as follows :
Unicolor : maximum (subaddress (00H), data (3F))
Brightness : maximum (subaddress (01H), data (7F))
Color
: center (subaddress (02H), data (40)).
Adjust the tint so that the waveform angle of the B-Y output pin (TP47) is 0°.
Switch the relative phase amplitude (subaddress (12H)) and measure the phase of the RGB outputs (TP13, TP14, TP15)
according to the table below.
Subaddress (12H) data
TP13
TP14
TP15
STD (00)
θ_RSTD
θ_GSTD
θ_BSTD
DVD (40)
θ_RDVD
θ_GDVD
θ_BDVD
TSB (80)
θ_RTSB
θ_GTSB
θ_BTSB
DTV (C0)
θ_RDTV
θ_GDTV
θ_BDTV
(*)The test method is the same as those for C₄ in Chroma stage. (Measure bar 2 of the G axis.)
Using the values obtained in A₀₈ above, calculate the relative amplitudes by the following formulas.
A₉
RGB Output Relative
Phase
C
B
A
A
θ_RB*** = θ_R*** − θ_B***
θ_GB*** = θ_G*** − θ_B***
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).
55
2005-09-20