TA1360AFG Datasheet, PDF (79/110 Pages) Toshiba Semiconductor – YCbCr/YPbPr Signal and Sync Processor for Digital TV, Progressive Scan TV and Double Scan TV

TA1360AFG
Note
No.
Characteristics
SW68
T04 White peak
C
slice level
SW67
B
SW66
B
Test Conditions
SW Mode
SW26 SW25 SW24
A
A
A
SW21
A
SW19
A
SW18
A 1.
2.
Test Method
Set subcontrast to maximum.
Apply external power supply to pin 68 and gradually increase voltage from 5.8 V.
3. When picture period of pin 12 is clipped, measure pin 12 picture period amplitude voltage,
V_wps1.
4. Change subaddress (0C) data to (FC) and repeat the steps 1 to 3 above. (V_wps2)
T05 Black peak
slice level
C
B
B
A
A
A
A
A
A 1. Apply external power supply to pin 68 and gradually decrease voltage from 5.8 V.
2. When picture periods are clipped, measure pins 14, 13, and 12 voltage, V_bps.
T06 RGB output
C
B
B
A
A
A
A
A
A 1. Adjust brightness data so that picture period voltage of pin 14 is 2.4 V.
S/N
2. Set color data to minimum.
3. Measure noise levels n14-, n13-, and n12-Vp-p in picture period of pin 14, 13, and 12 with an
oscilloscope.
4. Calculate S/N.
N₁₄ = −20 × log [2.3/(0.2 × n14)]
N₁₃ = −20 × log [2.3/(0.2 × n13)]
N₁₂ = −20 × log [2.3/(0.2 × n12)]
T07 Halftone
A
B
B
A
A
A
A
A
A 1. Input signal 1 (f₀ = 100 kHz, picture period amplitude 0.2 Vp-p) from pin 68.
characteristic
2. Measure pin 14 picture period amplitude v14A.
3. Apply 1.5 V to pin 79 from external power supply.
4. Measure pin 14 picture period amplitude v14B
5. Calculate the following equation. G_HT1 = v14B/v14A
6. Stop applying voltage to pin 79. Set subaddress (1A) to data (E2) and measure pin 14-picture
period amplitude, v14C.
7. Calculate the following equation. G_HT2 = v414C/v14A
79
2003-01-21