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參數(shù)資料
| 型號(hào)： | ICS843002I |
| 英文描述： | FEMTOCLOCKS-TM CRYSTAL-TO-3.3V, 2.5V LVPECL FREQUENCY SYNTHESIZER |
| 中文描述： | FEMTOCLOCKS -商標(biāo)晶體到3.3伏，2.5伏的LVPECL頻率合成器 |
| 文件頁數(shù)： | 1/16頁 |
| 文件大?。?/td> | 212K |
| 代理商： | ICS843002I |
843002AGI
www.icst.com/products/hiperclocks.html
REV. A JANUARY 4, 2006
1
Integrated
Circuit
Systems, Inc.
ICS843002I
F
EMTO
C
LOCKS
C
RYSTAL
-
TO
-3.3V, 2.5V
LVPECL F
REQUENCY
S
YNTHESIZER
G
ENERAL
D
ESCRIPTION
The ICS843002I is a 2 output LVPECL synthesizer
optimized to generate Fibre Channel reference
clock frequencies and is a member of the
HiPerClocks
TM
family of high performance clock
solutions from ICS. Using a 26.5625MHz, 18pF
parallel resonant crystal, the following frequencies can be
generated based on the 2 frequency select pins (F_SEL[1:0]):
212.5MHz, 187.5MHz, 159.375MHz, 106.25MHz, and
53.125MHz. The ICS843002I uses ICS’ FemtoClock
TM
low
phase noise VCO technology and can achieve 1ps or lower
typical rms phase jitter, easily meeting Fibre Channel jitter
requirements. The ICS843002I is packaged in a small 20-pin
TSSOP package.
F
EATURES
Two 3.3V or 2.5V LVPECL outputs
Selectable crystal oscillator interface
or LVCMOS/LVTTL single-ended input
Supports the following output frequencies: 212.5MHz,
187.5MHz, 159.375MHz, 106.25MHz and 53.125MHz
VCO range: 560MHz - 680MHz
RMS phase jitter @212.5MHz (2.55MHz - 20MHz):
0.50ps (typical)
Full 3.3V or 2.5V supply modes
-40°C to 85°C ambient operating temperature
Available in both standard and lead-free RoHS compliant
packages
HiPerClockS
ICS
P
IN
A
SSIGNMENT
1
0
1
0
Phase
Detector
VCO
637.5MHz
(w/26.5625MHz
Reference)
OSC
M = 24 (fixed)
F_SEL[1:0]
0 0 ÷3
0 1 ÷4
1 0 ÷6
1 1 ÷12
2
ICS843002I
20-Lead TSSOP
6.5mm x 4.4mm x 0.92mm
package body
G Package
Top View
B
LOCK
D
IAGRAM
F
REQUENCY
S
ELECT
F
UNCTION
T
ABLE
F_SEL[1:0]
nPLL_SEL
REF_CLK
XTAL_IN
XTAL_OUT
nXTAL_SEL
MR
Q0
nQ0
Q1
nQ1
Pulldown
Pulldown
26.5625MHz
nc
V
CCO
Q0
nQ0
MR
nc
V
CCA
F_SEL0
V
CC
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
V
CCO
Q1
nQ1
V
EE
V
CC
nXTAL_SEL
REF_CLK
XTAL_IN
XTAL_OUT
F_SEL1
Pulldown
Pulldown
Pulldown
s
u
D
u
V
2
2
2
2
2
p
M
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5
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3
5
2
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1
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5
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2
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6
6
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c
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d
D
0
0
1
1
0
0
1
0
1
0
4
4
4
4
4
5
7
5
5
2
2
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| ICS843002I-40 | 175MHZ, FEMTOCLOCKS-TM VCXO BASED SONET/SDH JITTER ATTENUATOR |
| ICS843002AKI-41 | 700MHz, FEMTOCLOCKS-TM VCXO BASED SONET/SDH JITTER ATTENUATOR |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ICS843002I-01 | 制造商:ICS 制造商全稱:ICS 功能描述:FEMTOCLOCKS-TM CRYSTAL-TO- 3.3V, 2.5V LVPECL FREQUENCY SYNTHESIZER |
| ICS843002I-40 | 制造商:ICS 制造商全稱:ICS 功能描述:175MHZ, FEMTOCLOCKS-TM VCXO BASED SONET/SDH JITTER ATTENUATOR |
| 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 |
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