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CSPT855PG
P1-P3
P4-P6
P7-P9
P10-P10
7
IDTCSPT855
2.5V PLL CLOCK DRIVER
COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES
FBIN
CLK
t
(Ø)n
t
(Ø)n + 1
t
(Ø)
=
N
n = N
1
t
(Ø)n
∑
CLK
FBIN
(N is a large number of samples)
Figure 3. Static Phase Offset
Yx,
FB
OUT
Yx
t
sk(o)
Yx,
FB
OUT
Yx
Figure 5. Output Skew
TEST CIRCUIT AND SWIT
CHING WA
VEFORMS
FBIN
CLK
t
(Ø)
t
D(Ø
)
CLK
FBIN
t
D(Ø)
t
(Ø)
t
D(Ø)
t
D(Ø)
Figure 4. Dynamic Phase Offset
8
COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES
IDTCSPT855
2.5V PLL CLOCK DRIVER
Yx,
F
BOU
T
Yx,
F
BOU
T
t
jit(
per
)
=
t
cycl
e n
1
f
o
Yx,
F
BOU
T
Yx,
F
BOU
T
t
cycl
e n
1
f
o
Yx, FBO
UT
Yx, FBO
UT
1
f
o
t
jit
(
hper
)
=
t
half period n
1
2*f
o
Yx, FBO
UT
Yx, FBO
UT
t
half period n
t
half peri
od n+1
Figure 6. Period jitter
Figure 7. Half-Period jitter
TEST CIRCUIT
AND SWIT
CHING WA
VEFORMS
9
IDTCSPT855
2.5V PLL CLOCK DRIVER
COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES
Figure 8. Input and Output Slew Rates
C
lo
c
k
In
p
u
ts
and Out
put
s
80%
20%
V
ID
, V
OD
t
SL
RR(
I
)
,
t
SLRR(
O
)
80%
20%
t
S
L
R
F
(I),
t
SLRF(
O)
TEST CIRCUIT AND SWIT
CHING WA
VEFORMS
P1-P3
P4-P6
P7-P9
P10-P10
CSPT855PG
Mfr. #:
Buy CSPT855PG
Manufacturer:
IDT
Description:
Phase Locked Loops - PLL 2.5V DDR CLK DRIVER PLL
Lifecycle:
New from this manufacturer.
Delivery:
DHL
FedEx
Ups
TNT
EMS
Payment:
T/T
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Union
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