- SS-HQ1 Application Notes -
Ver.1.0.0 January 7, 2005
212
Applied circuit example
The figure shows an example of an LPF applied circuit. Also refer to the figure below for the DC bias supply
from EXVIDEO (pin 58) to EXVIDEOY (pin 57). The constant is a value used on our evaluation board. Treat it
as a reference value.
Fig 12.2-25 Example LPF circuit
12.2.7. Using the Internal SYNCSEP
Internal SYNCSEP divides the SYNC of the external video luminance signal (signal which has passed through
LPF) input to EXVIDEOY (pin 57) between VD and HD when using VS lock or VBS lock.
The internal SYNCSEP power pins are AVD5 (pin 56) and AVS5 (pin 59).
DC bias is supplied from EXVIDEO (pin 58) to EXVIDEOY (pin 57). In VBS Lock Mode, EXVIDEO (pin 58) also
serves as external burst input. In VS Lock Mode, the external burst input is disabled.
0.1u
180
EXT-VIDEO
EXVIDEOY
(57pin)
22u
91p
75
EXVIDEO
(58pin)
DC BIAS