TA1316AN Datasheet, PDF (65/115 Pages) Toshiba Semiconductor – YCbCr/YPbPr Signal and Sync Processor for Digital TV, Progressive Scan TV and Double Scan TV

Note No.
Parameter
P14 Sharpness control range
TA1316AN
Test Conditions
SW mode
SW1 SW2 SW3 SW56
Test Method (test conditions: V_CC = 9 V/2 V, Ta = 25° ± 3°C)
B
B
A
ON (1) Input sine wave (frequency variable) to TPA.
(2) Set pin 3 amplitude to 20 mV_P-P.
(3) Set UNI-COLOR to maximum (1111111), SHR-TRACKING to SRT-GAIN minimum (11), APACON peak
frequency (APACON PEAK f₀) to 15 M (00) and color detail enhancer (CDE) to center (10).
(4) Set picture mute to off (P-MODE: Normal1 (000)) and monitor pin 43.
(5) Set picture sharpness (PICTURE-SHARPNESS) to center (1000000) and measure amplitude V₁₀₀ when
input frequency is 100 kHz.
(6) Set PICTURE-SHARPNESS to maximum (1111111) and measure amplitude V_MAX00 when input frequency is
F_AP00. Calculate G_MAX00 using the following formula.
(7) Set PICTURE-SHARPNESS to minimum (0000000) and measure amplitude V_MIN00 when input frequency is
F_AP00. Calculate G_MIN00 using the following formula.
(8) Set APACON PEAK f₀ to 8.8 M (01) and measure amplitudes V_MAX01 and V_MIN01 as in steps (6) and (7)
when input frequency is F_AP01. Calculate G_MAX01 and G_MIN01 using the following formulae.
(9) Set APACON PEAK f₀ to 7.5 M (10) and measure amplitudes V_MAX10 and V_MIN10 as in steps (6) and (7)
when input frequency is F_AP10. Calculate G_MAX10 and G_MIN10 using the following formulae.
(10) Set APACON PEAK f₀ to 5 M (11) and measure amplitudes V_MAX11 and V_MIN11 as in steps (6) and (7) when
input frequency is F_AP11. Calculate G_MAX11 and G_MIN11 using the following formulae.
G_MAX*** = 20 × "og (V_MAX*** ÷ V₁₀₀) [dB]
G_MIN*** = 20 × "og (V_MIN*** ÷ V₁₀₀) [dB]
*: When using a spectrum analyzer for monitoring, measure gain for low frequency.
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2002-10-04