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Número de pieza | PCK2022RA | |
Descripción | CK00 (100/133 MHz) spread spectrum differential system clock generator | |
Fabricantes | NXP Semiconductors | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de PCK2022RA (archivo pdf) en la parte inferior de esta página. Total 14 Páginas | ||
No Preview Available ! INTEGRATED CIRCUITS
PCK2022RA
CK00 (100/133 MHz) spread spectrum
differential system clock generator
Product data
Supersedes data of 2001 Jun 12
2003 Jul 31
Philips
Semiconductors
1 page Philips Semiconductors
CK00 (100/133 MHz) spread spectrum differential
system clock generator
Product data
PCK2022RA
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
IOCLK
48MHz
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.
REFCLK
LOW
SPREAD SPECTRUM FUNCTION
SPREAD #
1
0
FUNCTION
Host/IOCLK
No Spread
Host/IOCLK
Down spread -0.5%
48 MHz PLL
REFCLK
No Spread
No Spread
2003 Jul 31
5
5 Page Philips Semiconductors
CK00 (100/133 MHz) spread spectrum differential
system clock generator
PWRDWN
HOST CLK
(INTERNAL)
PCICLK
(INTERNAL)
PWRDWN
HOST CLK
(EXTERNAL)
PCICLK
(EXTERNAL)
OSC & VCO
USB (48 MHz)
ÁÁÁÁ
Figure 5. Power management
CRYSTAL
14.318 MHz
VDD
HOST
DUT
HOST_BAR
CL
RS
RS = 33.2 Ω
RS
CL
RP = 50 Ω
RP = 50 Ω
Figure 6. HOST CLOCK measurements
SW00671
3.3V CLOCKING
INTERFACE
2.4 V
1.5 V
0.4 V
tPKP
DUTY CYCLE
tPKH
tRISE
tFALL
tPKL
Figure 7. 3.3 V clock waveforms
SW00659
Product data
PCK2022RA
SW00669
2003 Jul 31
11
11 Page |
Páginas | Total 14 Páginas | |
PDF Descargar | [ Datasheet PCK2022RA.PDF ] |
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