參數(shù)資料
型號: XRK39910ID-2
廠商: EXAR CORP
元件分類: 時鐘及定時
英文描述: 3.3V LOW SKEW PLL CLOCK DRIVER
中文描述: 39910 SERIES, PLL BASED CLOCK DRIVER, 8 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO24
封裝: 0.300 INCH, SOIC-24
文件頁數(shù): 5/9頁
文件大?。?/td> 80K
代理商: XRK39910ID-2
XRK39910
5
REV. 1.0.0
3.3V LOW SKEW PLL CLOCK DRIVER
N
OTES
:
1.
2.
3.
4.
5.
6.
All timing and jitter tolerances apply for F
NOM
> 25MHz.
Skew is the time between the earliest and the latest output transition among all outputs with the specified load.
t
SKEW
is the skew between all outputs. See AC TEST LOADS.
For XRK39910-2 t
SKEW
is measured with C
L
= 0pF; for C
L
= 20pF, t
SKEW
= 0.35ns Max.
t
DEV
is the output-to-output skew between any two devices operating under the same conditions.
t
LOCK
is the time that is required before synchronization is achieved. This specification is valid only after V
DD
is
stable and within normal operating limits. This parameter is measured from the application of a new signal or
frequency at CLKIN or FB_IN until t
PD
is within specified limits.
t
PD
is measured with CLKIN input rise and fall times (from 0.8V to 2V ) of 1ns.
7.
T
ABLE
9: S
WITCHING
C
HARACTERISTICS
OVER
OPERATING
RANGE
S
YMBOL
P
ARAMETER
XRK39910-2
XRK39910-5
XRK39910-7
U
NIT
M
IN
T
YP
M
AX
M
IN
T
YP
M
AX
M
IN
T
YP
M
AX
F
REF
CLKIN Frequency Range
FSEL = LOW
15
35
15
35
15
35
MHz
FSEL = MED
25
60
25
60
25
60
FSEL = HIGH
40
85
40
85
40
85
t
RPWH
CLKIN Pulse Width HIGH
3
3
3
ns
t
RPWL
CLKIN Pulse Width LOW
3
3
3
ns
t
SKEW
Output Skew (All Outputs)
[1, 3, 4]
0.1
0.25
0.25
0.5
0.3
0.75
ns
t
DEV
Device-to-Device Skew
[1, 2, 5]
0.75
1.25
1.65
ns
t
PD
CLKIN Input to FB_IN Propagation Delay
[1, 7]
-0.25
0
0.25
-0.5
0
0.5
-0.7
0
0.7
ns
t
ODCV
Output Duty Cycle Variation from 50%
[1]
-1.2
0
1.2
-1.2
0
1.2
-1.2
0
1.2
ns
t
ORISE
Output Rise Time
[1]
0.15
1
1.2
0.15
1
1.5
0.15
1.5
2.5
ns
t
OFALL
Output Fall Time
[1]
0.15
1
1.2
0.15
1
1.5
0.15
1.5
2.5
ns
t
LOCK
PLL Lock Time
[1,6]
0.5
0.5
0.5
ms
t
JR
Cycle-to-Cycle Output Jit-
ter
[1]
RMS
25
25
25
ps
Peak-to-Peak
200
200
200
相關(guān)PDF資料
PDF描述
XRK49911 3.3V HIGH-SPEED (110 MHZ) PROGRAMMABLE SKEW CLOCK BUFFER
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