TA1360AFG_05 Datasheet, PDF (68/110 Pages) Toshiba Semiconductor – YCbCr/YPbPr Signal and Sync Processor for Digital TV, Progressive Scan TV and Double Scan TV

TA1360AFG
Note No.
Characteristics
P28 Color detail enhancer (CDE)
SW71
B
Test Conditions
SW Mode
SW70 SW68 SW64
B
A
B
SW74
Test Method (Test condition: V_CC = 9 V/2 V, Ta = 25 ± 3°C)
ON 1. Set unicolor to maximum (1111111), SRT-GAIN to minimum (00000), color to center (1000000), and color
limiter level to 2 Vp (1). Input SWEEP signal to TPA so that #68 amplitude is 20 mVp-p. Set SW67 to A, and
input signal as shown in the figure below (#67 amplitude is 0.2 Vp-p) to TP67.
2. Set picture sharpness to center (1000000), Y detail control to center (1000), and monitor #14 with a spectrum
analyzer.
3. When CDE is at minimum (00), set low frequency area to 0dB, and determine peak level G_CDEMIN.
4. When CDE is at maximum (11), set low frequency area to 0dB, and determine peak level G_CDEMAX.
5. Calculate the following equation.
G_CDE00 = G_CDEMAX00 − G_CDEMIN00
6. When APACON peak frequency is 13.5 M (00), 9.5 M (01), 6.4 M (10), and 4.5 M (11), calculate G_CDE00,
G_CDE01, G_CDE10, and G_CDE11 respectively using above equation.
Output gain [dB]
BLK
period
picture period
0.2 Vp-p
0dB
max
min
Input frequency [MHz]
68
2005-08-18