pck2002p NXP Semiconductors, pck2002p Datasheet - Page 5

• Manufacturer Part Number: pck2002p
• Description: 140 Mhz Pci-x Clock Buffer
• Manufacturer: NXP Semiconductors

Philips Semiconductors
AC CHARACTERISTICS
NOTES:
1. CLK skew is only valid for equal loading of all outputs.
2. t
3. t
4. t
5. Input edge rate for these tests must be faster than 1 V/ns.
6. All typical values are at V
AC WAVEFORMS
V
C
V
output load.
2002 Dec 13
M
OL
L
533 MHz PCI-X clock buffer
= 25 pF
= 50% V
SYMBOL
SYMBOL
H
L
R
and V
t
BUF_OUT
DDSKW
is measured at 0.35 V
is measured at 0.5 V
and t
t
t
t
SKW
PLH
PHL
t
t
t
t
BUF_IN
t
t
H
H
R
L
L
F
0.35 V
INPUT
0.5 V
0.4 V
OH
Figure 1. Load circuitry for switching times.
F
DD
are measured as a transition through the threshold region 0.2 V
DD
DD
DD
are the typical output voltage drop that occur with the
0.6 V
0.2 V
Figure 2. Buffer Output clock
CLK HIGH time
CLK LOW time
CLK HIGH time
CLK LOW time
Output rise slew rate
Output fall slew rate
Buffer LH propagation delay
Buffer HL propagation delay
Bus CLK skew
Device to device skew
DD
DD
V
T
M
t
DD
R
t
PLH
h
DD
CC
V
as shown in Figure 2.
M
PARAMETER
PARAMETER
as shown in Figure 2.
= 3.3 V and T
t
p
V
M
V
t
l
DD
t
PHL
amb
= 25 °C.
SW00812
V
M
T
F
SW00811
0.6 V
0.2 V
DD
DD
TEST CONDITIONS
140 MHz
66 MHz
5
TEST CIRCUIT
DD
to 0.6 V
GENERATOR
NOTES
PULSE
2
3
2
3
4
4
5
5
1
1
Figure 3. Load circuitry for switching times
DD
and 0.6 V
MIN
6.0
6.0
2.9
3.0
1.4
1.5
1.8
1.8
—
—
V
I
R
DD
T
T
amb
to 0.2 V
= -40 to +85 °C
LIMITS
D.U.T.
TYP
V
1.7
2.2
2.9
2.8
DD
—
—
—
—
—
—
DD
6
.
V
O
C
PCK2002P
L
MAX
200
500
4.0
4.0
3.4
3.4
—
—
—
—
V
SW00813
DD
Product data
140 Ω
140 Ω
UNIT
UNIT
V/ns
V/ns
ns
ns
ns
ns
ns
ns
ps
ps