LV76213A2F Datasheet, PDF (20/45 Pages) Sanyo Semicon Device – For PAL/NTSC Color Television Sets VIF/SIF/Y/C/Deflection /CbCr IN Implemented in a Single Chip

LV76213A2F
•Chroma Block Input Signals and Test Conditions
Unless otherwise specified, the following conditions apply when each measurement is made.
1. VIF, SIF blocks: No signal
2. Deflection Block: Horizontal/vertical composite sync signals are input and the deflection block must be locked into the sync
signals (Refer to the Deflection Block Input Signals and the Test Conditions).
3. Bus control conditions: Set the following conditions unless otherwise specified.
Y Input is 7 Pin (YC-Y),
C Input is 8 Pin (YC-C)
(Video SW=3, C. Ext=1)
Other DAC except the above-mentioned conditions is all initial conditions.
4. Y Input condition: No signal unless otherwise specified.
(Sync is necessary to obtain synchronization).
5. How to calculate the demodulation ratio and angle:
B-Y axis angle=tan-1(B ( 0) / B (270))+270°
R-Y axis angle=tan-1(R (180) / R ( 90))+90°
G-Y axis angle=tan-1(G (270) / G (180))+180°
B-Y axis amplitude Vb=SQRT(B(0)*B(0)+B(270)*B(270))
R-Y axis amplitude Vr=SQRT(R(180)*R(180)+R(90)*R(90))
G-Y axis amplitude Vg=SQRT(G(180)*G(180)+G(270)*G(270))
R-Y axis
90°
180°
G(180)
R(90)
G(270)
R(180)
B(270)
B(0)
0°
B-Y axis
G-Y axis
270°
No.A1934-20/45