TA1310ANG Datasheet, PDF (50/106 Pages) Toshiba Semiconductor – NTSC VIDEO, CHROMA, DEFLECTION, AND DISTORTION COMPENSATION IC (WITH YUV INTERFACE AND ACB)

NOTE
ITEM
C₁₅
APC Frequency
Sensitivity
SW MODE
SW₄₅ SW₄₆
1)
2)
3)
Control _A
4)
OFF
(#16 V_CC = 9 V, #37 V_CC = 9 V, #51 V_CC = 5 V, Ta = 25 ± 3°C)
MEASUREMENT METHOD
No signal input to the chroma input pin (TP45) (set SW₄₅ to A).
Set SW₄₆ to open and connect an external power supply to the APC filter pin (#46).
Change the voltage of external power supply to a value regarded as Vc3, where the output frequency of
the CW output pin (TP50) is 3.579545 MHz (X_f).
Measure the CW output frequencies X_f (+100) and X_f (−100) for Vc3 + ∆Vc3 (±100 mV). Calculate the
free-run sensitivity β_f from the following formula.
β
f⁼
Xf
(+100) −Xf
200
(−100)
C₁₆ APC Pull-In / Hold Range
B
C₁₇ Residual Carrier Level
B
C₁₈
Residual Higher Harmonic
Level
B
1) Input a 3.579545-MHz sine wave (300 mV_p-p) to the chroma input pin (TP45).
2) Vary the input sine wave frequency in ±10-Hz steps from 3.579545 MHz. When the B-Y output pin (TP47)
picture period amplitude changes, measure the difference between 3.579545 MHz and the varied sine
ON
wave frequencies : on the plus side, f_h+, and on the minus side, f_h− (hold).
3) Increase and decrease the above measured values by 1 kHz : (f_h+) +1 kHz and (f_h−) −1 kHz. Adjust to
approximately 3.579545 MHz in ±10-Hz steps. When the B-Y output pin (TP47) picture period amplitude
changes, measure the difference from 3.579545 MHz : on the plus side, f_p+, and on the minus side, f_p−
(pull-in).
1) Input a rainbow signal (signal C-1) to the chroma input pin (TP45).
Burst : chroma = 300 mV_p-p : 300 mV_p-p
ON
2) Measure the color subcarrier leak levels v_BNo and v_RNo of the B-Y output pin (TP47) and the R-Y output
pin (TP48).
1) Input a rainbow signal (signal C-1) to the chroma input pin (TP45).
Burst : chroma = 300 mV_p-p : 300 mV_p-p
ON
2) Measure the higher harmonic levels v_BHN and v_RHN of the B-Y output pin (TP47) and the R-Y output pin
(TP48).
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).
TA1310ANG
50
2005-09-20