TA1316AN Datasheet, PDF (61/115 Pages) Toshiba Semiconductor – YCbCr/YPbPr Signal and Sync Processor for Digital TV, Progressive Scan TV and Double Scan TV

Note No.
Parameter
P09 Dynamic Y γ gain
P10 Static Y γ dark area gain
TA1316AN
Test Conditions
SW mode
SW1 SW2 SW3 SW56
Test Method (test conditions: V_CC = 9 V/2 V, Ta = 25° ± 3°C)
A
B
A OPEN (1) Connect external power supply (PS1) to pin 3 and (PS2) to TP1. Set PS2 to 0 V.
(2) Set DYNCγ-POINT to 30 IRE (11), DYNCγ GAIN VS DARK AREA to off (000) and STATICγ-GAIN to off (00).
(3) Set PS1 to V₃ and determine pin 56 voltage V_DGOFF1.
(4) Set PS1 to V₃ + 0.16 V and determine pin 56 voltage V_DGOFF2.
(5) Set DYNCγ GAIN VS DARK AREA to maximum (111), PS2 to 1 V and determine pin 56 voltage V_GDON.
(6) Calculate G_DG using the following formula.
G_DG = 20 × "og (V_DGON − V_DGOFF1/V_DGOFF2 − V_DGOFF1)
A
B
A OPEN (1) Connect external power supply (PS1) to pin 3 and (PS2) to TP1. Set PS2 to 0 V.
(2) Set DYNCγ-POINT to 30 IRE (11), DYNCγ GAIN VS DARK AREA to off (000) and STATICγ-GAIN to off (00).
(3) Set PS1 to V₃ and determine pin 56 voltage V_SGOFF1.
(4) Set PS1 to V₃ + 0.16 V and determine pin 56 voltage V_SGOFF2.
(5) Set STATICγ GAIN to maximum (11) and determine pin 56 voltage V_SGON.
(6) Calculate G_SG using the following formula.
G_SG = 20 × "og (V_SGON − V_SGOFF1/V_SGOFF2 − V_SGOFF1)
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2002-10-04