pck9447 NXP Semiconductors, pck9447 Datasheet - Page 8

• Manufacturer Part Number: pck9447
• Description: 3.3 V/2.5 V 1 9 Lvcmos Clock Fan-out Buffer
• Manufacturer: NXP Semiconductors

Philips Semiconductors
9397 750 12522
Product data sheet
Fig 5. Propagation delay (t
Fig 7. Output skew time (t
Fig 9. Output transition time test reference
(1) 2.4 V (V
(2) 0.55 V (V
The pin-to-pin skew is defined as the worst-case
difference in propagation delay between any similar
delay path within a single device.
1.8 V (V
0.6 V (V
CCLK
Qn
CC
CC
CC
CC
= 3.3 V)
= 2.5 V)
= 2.5 V)
= 3.3 V)
t
f
t
PD
t
sk(o)
sk(o)
PD
t
r
) test reference
)
002aab292
002aab288
t
(2)
(1)
sk(o)
002aab289
V
V
GND
V
V
GND
CC
CC
CC
CC
V
V
GND
V
V
GND
Rev. 01 — 13 October 2005
CC
CC
CC
CC
/2
/2
/2
/2
Fig 6. Pulse skew time (t
Fig 8. Output Duty Cycle (
Fig 10. Setup and hold time (t
CLK_STOP
3.3 V/2.5 V 1 : 9 LVCMOS clock fan-out buffer
The time from the output controlled edge to the
non-controlled edge, divided by the time between
output controlled edges, expressed as a percentage.
CCLK
CCLK0
CCLK1
Qn
= (t
t
P
sk(p)
T
0
= t
t
PLH
t
P
100 %)
PLH
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
T
t
sk(p)
su
t
0
PHL
o
)
) test reference
su
t
t
h
PHL
, t
h
)
002aab290
PCK9447
002aab294
002aab291
V
V
GND
CC
CC
V
V
GND
V
V
GND
/2
CC
CC
CC
CC
V
V
GND
V
V
GND
/2
CC
CC
/2
CC
CC
/2
/2
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