TDA4857PS NXP Semiconductors, TDA4857PS Datasheet - Page 40

• Manufacturer Part Number: TDA4857PS
• Manufacturer: NXP Semiconductors

Specifications of TDA4857PS

• Lead Free Status / Rohs Status: Not Compliant

Philips Semiconductors
PLL2 soft start sequence and PLL2 soft-down sequence
2001 Apr 11
handbook, full pagewidth
handbook, full pagewidth
I
PC monitors
(1) HDRV, BDRV, VOUT2 and VOUT1 are floating for V
2
C-bus autosync deflection controller for
V HPLL2
V HPLL2
Fig.25 PLL2 soft start sequence and PLL2 soft-down sequence via the I
b. PLL2 soft-down sequence, via the I
a. PLL2 soft start sequence, via the I
1 V
4.7 V
1.7 V
VOUT1 and VOUT2 enabled
continuous blanking (pin 16 and 17) activated
PLL2 disabled
frequency detector disabled
HDRV/HFLB protection disabled
HDRV duty cycle begins to increase
2.8 V
CC
< 8.6 V.
3.4 V
BDRV duty cycle begins to increase
HDRV duty cycle has reached nominal value
3.4 V
BDRV duty cycle begins to decrease
2.8 V
40
BDRV duty cycle has reached nominal value
BDRV floating
HDRV duty cycle begins to decrease
1.7 V
4.7 V
2
2
1 V
C-bus, if V
C-bus, if V
HDRV floating
continuous blanking off
PLL2 enabled
frequency detector enabled
HDRV/HFLB protection enabled
VOUT1 and VOUT2 floating
CC
CC
> 8.6 V.
> 8.6 V.
time
time
(1)
MGM085
MGM084
(1)
2
C-bus.
TDA4857PS
Product specification