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參數(shù)資料
| 型號： | ICS84330 |
| 英文描述： | 700MHZ, LOW JITTER, CRYSTAL-TO-3.3V DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER |
| 中文描述： | 700MHz的，低抖動，晶體至3.3V的差分LVPECL頻率合成器 |
| 文件頁數(shù)： | 12/19頁 |
| 文件大小： | 368K |
| 代理商： | ICS84330 |
84330BV
www.icst.com/products/hiperclocks.html
REV. B JULY 26, 2004
12
Integrated
Circuit
Systems, Inc.
ICS84330
700MH
Z
, L
OW
J
ITTER
, C
RYSTAL
-
TO
-3.3V
D
IFFERENTIAL
LVPECL F
REQUENCY
S
YNTHESIZER
If the FREF_EXT input is driven by a 3.3V LVCMOS driver, the
jitter performance can be improved by reducing the amplitude
swing and slowing down the edge rate. Figure 7Ashows an
amplitude reduction approach for a long trace. The swing will
be approximately 0.85V for logic low and 2.5V for logic high
R2
100
VDD
R1
100
Ro ~ 7 Ohm
Driver_LVCMOS
Zo = 50 Ohm
Td
RS
43
VDD
VDD
GND
TEST_CLK
VDD
VDD
GND
TEST_CLK
FREF_EXT
R1
200
RS
100
Ro ~ 7 Ohm
Driver_LVCMOS
R2
200
VDD
VDD
VDD
R1
400
R2
400
Ro ~ 7 Ohm
Driver_LVCMOS
RS
200
VDD
GND
TEST_CLK
FREF_EXT
J
ITTER
R
EDUCTION
FOR
FREF_EXT S
INGLE
E
ND
I
NPUT
(instead of 0V to 3.3V). Figure 7Bshows amplitude reduction
approach for a short trace. The circuit shown in Figure 7C
reduces amplitude swing and also slows down the edge rate
by increasing the resistor value.
F
IGURE
7C. E
DGE
R
ATE
R
EDUCTION
BY
I
NCREASING
THE
R
ESISTOR
V
ALUE
F
IGURE
7A. A
MPLITUDE
R
EDUCTION
FOR
A
L
ONG
T
RACE
F
IGURE
7B. A
MPLITUDE
R
EDUCTION
FOR
A
S
HORT
T
RACE
FREF_EXT
相關PDF資料 |
PDF描述 |
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| ICS84330BV | 700MHZ, LOW JITTER, CRYSTAL-TO-3.3V DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER |
| ICS84330BVT | 700MHZ, LOW JITTER, CRYSTAL-TO-3.3V DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER |
| ICS84330BY | 700MHZ, LOW JITTER, CRYSTAL-TO-3.3V DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER |
| ICS84330BYLN | 700MHZ, LOW JITTER, CRYSTAL-TO-3.3V DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER |
| ICS84330BYLNT | 700MHZ, LOW JITTER, CRYSTAL-TO-3.3V DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| ICS84330-01 | 制造商:ICS 制造商全稱:ICS 功能描述:700MHZ, LOW JITTER, CRYSTAL-TO-3.3V DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER |
| ICS84330-02 | 制造商:ICS 制造商全稱:ICS 功能描述:700MHZ, LOW JITTER, CRYSTAL-TO-3.3V DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER |
| ICS84330-03 | 制造商:ICS 制造商全稱:ICS 功能描述:700MHZ, LOW JITTER, CRYSTAL-TO-3.3V DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER |
| ICS843301I-108 | 制造商:IDT 制造商全稱:Integrated Device Technology 功能描述:FEMTOCLOCKS⑩ CRYSTAL-TO-3.3V, 2.5V LVPECL 75MHZ FREQUENCY SYNTHESIZER W/SSC |
| ICS84330A03L | 制造商:ICS 制造商全稱:ICS 功能描述:700MHZ, LOW JITTER, CRYSTAL-TO-3.3V DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER |
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