Philips Semiconductors
Product specification
I2C-bus autosync deflection controller for
PC monitors
TDA4841PS
Start-up and shut-down sequences
handbook, full pagewidth
MGM082
V
CC
8.6 V continuous blanking off
PLL2 soft start/soft-down enabled
(1)
2
8.3 V data accepted from I C-bus
video clamping pulse enabled if control bit STDBY = 0
3.5 V
continuous blanking (pin 16 and 17) activated
time
a. Start-up sequence.
MGM083
handbook, full pagewidth
V
CC
8.6 V continuous blanking (pin 16 and 17) activated
(2)
PLL2 soft-down sequence is triggered
2
8.1 V no data accepted from I C-bus
video clamping pulse disabled
3.5 V continuous blanking disappears
time
b. Shut-down sequence.
(1) See Fig.23a.
(2) See Fig.23b.
Fig.22 Activation of start-up and shut-down sequences via supply voltage.
41
1999 Oct 25
NXP [ NXP ]
