PCK2023DGG Philips Semiconductors, PCK2023DGG Datasheet - Page 15

• Manufacturer Part Number: PCK2023DGG
• Description: CK408 66/100/133/200 MHz spread spectrum differential system clock generator
• Manufacturer: Philips Semiconductors

Philips Semiconductors
POWER-UP SEQUENCE
Figure 6 shows the power-up sequence for the PCK2023. Once power is applied to the device, an internal sense circuit generates a signal
when the supply is above approximately 2 volts. This signal generates a series of timed signals that control the sequential event inside the
device. First, the multifunction pins are latched into the device. These latched signals are then used to define the mode of operation of the
device. A short time later, the PLL is enabled and begins running. After XX ms, the clock outputs are enabled and begin running
2001 Sep 07
CK408 (66/100/133/200 MHz) spread
spectrum differential system clock generator
OUTPUTS ENABLED
OPERATING MODE
INTERNAL POWER
INTERNAL 3.3 V
SET/PLL START
SIGNAL LATCH
SUPPLY
GOOD
14.318 MHz
CRYSTAL
Figure 7. Host clock measurements
V
DUT
DD
Figure 6. Power-up sequence
HOST
HOST
R
R
R
S
S
S
= 33.2
15
C
L
R
R
P
P
= 50
= 500
SW00855
PCK2023
Product data
SW00854