參數(shù)資料
型號: ICS9DB202CGLF
英文描述: Miniature Enclosed Switches Series 914CE: Top Plunger; 1NC 1NO SPDT Snap Action; 9 foot Cable
中文描述: 兩個0.7V的電流模式差分HCSL輸出對,1差分時鐘輸入
文件頁數(shù): 1/11頁
文件大小: 263K
代理商: ICS9DB202CGLF
9DB202CG
www.icst.com/products/hiperclocks.html
REV. A OCTOBER 6, 2004
1
Integrated
Circuit
Systems, Inc.
ICS9DB202
PCI E
XPRESS
J
ITTER
A
TTENUATOR
G
ENERAL
D
ESCRIPTION
The ICS9DB202 is a high perfromance 1-to-2 Dif-
ferential-to-HCSL Jitter Attenuator designed for use
in PCI Express systems. In some PCI Express
systems, such as those found in desktop PCs, the
PCI Express clocks are generated from a low
bandwidth, high phase noise PLL frequency synthesizer. In these
systems, a jitter-attenuating device may be necessary in order
to reduce high frequency random and deterministic jitter com-
ponents from the PLL synthesizer and from the system board.
The ICS9DB202 has two PLL bandwidth modes. In low band-
width mode, the PLL loop bandwidth is 500kHz. This setting of-
fers the best jitter attenuation and is still high enough to pass a
triangular input spread spectrum profile. In high bandwidth mode,
the PLL bandwidth is at 1MHz and allows the PLL to pass more
spread spectrum modulation.
For serdes which have x10 reference multipliers instead of x12.5
multipliers, each of the two PCI Express outputs (PCIEX0:1)
can be set for 125MHz instead of 100MHz by configuring the
appropriate frequency select pins (FS0:1).
Features
Two 0.7V current mode differential HCSL output pairs
1 differential clock input
CLK and nCLK supports the following input types:
LVPECL, LVDS, LVHSTL, SSTL, HCSL
Maximum output frequency: 140MHz
Output skew: 110ps (maximum)
Cycle-to-cycle jitter: 110ps (maximum)
RMS phase jitter @ 100MHz, (1.5MHz - 22MHz):
2.42ps (typical)
3.3V operating supply
0°C to 70°C ambient operating temperature
Lead-Free package available
Industrial temperature information available upon request
P
IN
A
SSIGNMENT
HiPerClockS
ICS
nOE0
nCLK
CLK
BYPASS
nOE1
PCIEXT0
nPCIEXC0
PCIEXT1
nPCIEXC1
B
LOCK
D
IAGRAM
ICS9DB202
20-Lead TSSOP
6.50mm x 4.40mm x 0.92
package body
G Package
Top View
ICS9DB202
20-Lead, 209-MIL SSOP
5.30mm x 7.20mm x 1.75mm
body package
F Package
Top View
Phase
Detector
VCO
Loop
Filter
1 HiZ
0 Enabled
1 HiZ
0 Enabled
0 ÷4
1 ÷5
0 ÷5
1 ÷4
FS0
FS1
Internal Feedback
÷5
Current
Set
-
0
1
0
1
IREF
PLL_BW
CLK
nCLK
FS0
V
DD
GND
PCIEXT0
PCIEXC0
V
DD
nOE0
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
V
DDA
BYPASS
IREF
FS1
V
DD
GND
PCIEXT1
PCIEXC1
V
DD
nOE1
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ICS9DB202CGLFT 功能描述:IC JITTER ATTENUATOR 20-TSSOP RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 專用 系列:HiPerClockS™, PCI Express® (PCIe) 標準包裝:1,500 系列:- 類型:時鐘緩沖器/驅(qū)動器 PLL:是 主要目的:- 輸入:- 輸出:- 電路數(shù):- 比率 - 輸入:輸出:- 差分 - 輸入:輸出:- 頻率 - 最大:- 電源電壓:3.3V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SSOP(0.209",5.30mm 寬) 供應(yīng)商設(shè)備封裝:28-SSOP 包裝:帶卷 (TR) 其它名稱:93786AFT
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