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參數(shù)資料
| 型號： | ICS843002I-40 |
| 英文描述： | 175MHZ, FEMTOCLOCKS-TM VCXO BASED SONET/SDH JITTER ATTENUATOR |
| 中文描述： | 175MHz時，F(xiàn)EMTOCLOCKS，商標VCXO的基于SONET / SDH的抖動衰減器 |
| 文件頁數(shù)： | 12/21頁 |
| 文件大?。?/td> | 277K |
| 代理商： | ICS843002I-40 |
843002AKI-40
www.icst.com/products/hiperclocks.html
REV. A JUNE 22, 2005
12
Integrated
Circuit
Systems, Inc.
ICS843002I-40
175MH
Z
, F
EMTO
C
LOCKS
VCXO B
ASED
SONET/SDH J
ITTER
A
TTENUATOR
PRELIMINARY
N
OTES
ON
S
ETTING
C
HARGE
P
UMP
C
URRENT
The recommended range for the charge pump current is 50
μ
A
to 300
μ
A. Below 50
μ
A, loop filter charge leakage, due to PCB or
capacitor leakage, can become a problem. This loop filter leakage
can cause locking problems, output clock cycle slips, or low
frequency phase noise.
1E-3
100E-6
10E-6
1k
10k
100k
R
SET
,
Ω
I
C
,
R
T
k
E
S
I
t
n
e
r
u
C
p
m
u
P
e
g
r
a
h
C
P
C
)
6
1
A
μ
5
6
k
8
A
μ
5
2
1
k
k
4
2
A
A
μ
μ
0
0
5
0
2
5
F
IGURE
1. C
HARGE
P
UMP
C
URRENT
VS
. V
ALUE
OF
R
SET
(
EXTERNAL
RESISTOR
) G
RAPH
As can be seen in the loop bandwidth and damping factor
equations or by using the filter response software available from
ICS, increasing charge pump current (I
CP
) increases both
bandwidth and damping factor.
C
HARGE
P
UMP
C
URRENT
, E
XAMPLE
S
ETTINGS
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| ICS843002I-41 | 700MHz, FEMTOCLOCKS-TM VCXO BASED SONET/SDH JITTER ATTENUATOR |
| ICS843002 | FEMTOCLOCKS⑩ CRYSTAL-TO-3.3V LVPECL FREQUENCY SYNTHESIZER |
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| ICS843002I-41 | 制造商:ICS 制造商全稱:ICS 功能描述:700MHz, FEMTOCLOCKS-TM VCXO BASED SONET/SDH JITTER ATTENUATOR |
| ICS843002I-72 | 制造商:IDT 制造商全稱:Integrated Device Technology 功能描述:FEMTOCLOCKS⑩ VCXO BASED WCDMA CLOCK GENERATOR/JITTER ATTENUATOR |
| ICS843003 | 制造商:ICS 制造商全稱:ICS 功能描述:FEMTOCLOCKS CRYSTAL-TO-3.3V LVPECL FREQUENCY SYNTHESIZER |
| ICS843003AG | 制造商:ICSI 制造商全稱:Integrated Circuit Solution Inc 功能描述:FEMTOCLOCKS CRYSTAL-TO-3.3V LVPECL FREQUENCY SYNTHESIZER |
| ICS843003AGI-01 | 制造商:ICS 制造商全稱:ICS 功能描述:FEMTOCLOCKS-TM CRYSTAL-TO-3.3V LVPECL FREQUENCY SYNTHESIZER |
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