TA1316AN Datasheet, PDF (74/115 Pages) Toshiba Semiconductor – YCbCr/YPbPr Signal and Sync Processor for Digital TV, Progressive Scan TV and Double Scan TV

Note No.
Parameter
P23 Transfer distortion correction
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 multi-burst signal (frequency equivalent to 4.2 MHz) of signal A to TPA. Set picture mute to off
(P-MODE: Normal1 (000)), UNI-COLOR to maximum (1111111), SHR-TRACKING to SRT-GAIN minimum
(11) and CDE to minimum (00).
(2) Set PICTURE-SHARPNESS to
flat (near DEC[24]), APACON
PEAK f₀ to 5 M (11) and monitor
pin 43.
Signal
A
(3) Input sine wave signal A (approx.
4.2 MHz) becomes signal B on
pin 43 as shown at right.
Determine S_A and S_B.
S_A
(4) When Y-GROUP DELAY
CORRECTION is set to minimum
Signal
(0000), signal A becomes signal
B
C on pin 43. Determine S_AMIN
and S_BMIN.
(5) When Y-GROUP DELAY
CORRECTION is set to
maximum (1111), signal A
becomes signal D on pin 43.
Determine S_AMAX and S_BMAX.
Signal ^SAMIN
(6) Calculate using the following formulae. _C
G_AMIN = 20 × "og (S_AMIN/S_A) [dB]
G_BMIN = 20 × "og (S_BMIN/S_B) [dB]
G_AMAX = 20 × "og (S_AMAX/S_A) [dB]
G_BMAX = 20 × "og (S_BMAX/S_B) [dB]
S_B
S_BMIN
Signal
D
S_AMAX
S_AMAX
Note:The input sine wave starts and ends within the picture period. It is like a burst signal, not a continuous wave.
74
2002-10-04