PCK2021DGG Просмотр технического описания (PDF) - Philips Electronics
Номер в каталоге
Компоненты Описание
Список матч
PCK2021DGG Datasheet PDF : 15 Pages
| |||
Philips Semiconductors
CK00 (100/133 MHz) spread spectrum differential
system clock generator
Product data
PCK2021
Table 1. Host swing select functions
MULTSEL0
MULTSEL1
BOARD
IMPEDANCE
0
0
60 Ω
0
0
50 Ω
0
1
60 Ω
0
1
50 Ω
1
0
60 Ω
1
0
50 Ω
1
1
60 Ω
1
1
50 Ω
0
0
30 Ω
0
0
25 Ω
0
1
30 Ω
0
1
25 Ω
1
0
30 Ω
1
0
25 Ω
1
1
30 Ω
1
1
25 Ω
NOTE:
The outputs are optimized for the configurations shown shaded.
IREF
RREF = 475 1%
IREF = 2.32 mA
RREF = 475 1%
IREF = 2.32 mA
RREF = 475 1%
IREF = 2.32 mA
RREF = 475 1%
IREF = 2.32 mA
RREF = 475 1%
IREF = 2.32 mA
RREF = 475 1%
IREF = 2.32 mA
RREF = 475 1%
IREF = 2.32 mA
RREF = 475 1%
IREF = 2.32 mA
RREF = 221 1%
IREF = 5 mA
RREF = 221 1%
IREF = 5 mA
RREF = 221 1%
IREF = 5 mA
RREF = 221 1%
IREF = 5 mA
RREF = 221 1%
IREF = 5 mA
RREF = 221 1%
IREF = 5 mA
RREF = 221 1%
IREF = 5 mA
RREF = 221 1%
IREF = 5 mA
IOH
IOH = 5*IREF
IOH = 5*IREF
IOH = 6*IREF
IOH = 6*IREF
IOH = 4*IREF
IOH = 4*IREF
IOH = 7*IREF
IOH = 7*IREF
IOH = 5*IREF
IOH = 5*IREF
IOH = 6*IREF
IOH = 6*IREF
IOH = 4*IREF
IOH = 4*IREF
IOH = 7*IREF
IOH = 7*IREF
VOH @ IREF = 2.32 mA
0.71 V
0.59 V
0.85 V
0.71 V
0.56 V
0.47 V
0.99 V
0.82 V
0.75 V
0.62 V
0.90 V
0.75 V
0.60 V
0.50 V
1.05 V
0.84 V
IOUT
IOUT
CONDITIONS
VDD = 3.3 V
VDD = 3.3 V ±5%
CONFIGURATION
All combinations;
see Table 1 above
All combinations;
see Table 1 above
LOAD
Nominal test load for
given configuration
Nominal test load for
given configuration
MIN.
–7% of IOH
see Table 1 above
–12% of IOH
see Table 1 above
MAX.
+7% of IOH
see Table 1 above
+12% of IOH
see Table 1 above
POWER-DOWN MODE
PWRDWN
HCLK/HCLKB
3V66
PCI
Asserts LOW
0 = Active
Host = 2*IREF
Host_bar = undriven
LOW
LOW
NOTE:
The differential outputs should have a voltage forced across them when power-down is asserted.
48MHz
LOW
REFCLK
LOW
SPREAD SPECTRUM FUNCTION
SPREAD #
1
0
FUNCTION
Host, PCI, and 3V66
No Spread
Host, PCI, and 3V66
spread t0.5%
48 MHz PLL
REFCLK
No Spread
No Spread
2001 Oct 11
5
Share Link: 