Philips Semiconductors
Product specification
I2C-bus autosync deflection controller for
PC monitors
TDA4856
MGM077
handbook, full pagewidth
relative t
/t
HDRV(OFF) H
(%)
52
45
15 30
110 130
f
(kHz)
H
Fig.16 Relative tOFF time of HDRV versus H-frequency.
composite sync (TTL)
handbook, full pagewidth
at HSYNC (pin 15)
internal integration of
composite sync
internal vertical
trigger pulse
PLL1 control voltage
at HPLL1 (pin 26)
clamping and blanking
pulses at CLBL (pin 16)
MGC947
a. Reduced influence of vertical sync on horizontal phase.
handbook, full pagewidth
composite sync (TTL)
at HSYNC (pin 15)
clamping and blanking
pulses at CLBL (pin 16)
MBG596
b. Generation of video clamping pulses during vertical sync with serration pulses.
Fig.17 Pulse diagrams for composite sync applications.
32
1999 Jul 13
NXP [ NXP ]
