参数资料
型号: ICS841003AKI-02T
厂商: INTEGRATED DEVICE TECHNOLOGY INC
元件分类: 时钟产生/分配
英文描述: 625 MHz, PROC SPECIFIC CLOCK GENERATOR, QCC32
封装: 5 X 5 MM, 0.75 MM HEIGHT, VFQFN-32
文件页数: 1/17页
文件大小: 343K
代理商: ICS841003AKI-02T
FEMTOCLOCKS CRYSTAL-TO-0.7V DIFF/LVDS
FREQUENCY SYNTHESIZER FOR PCI EXPRESS
ICS841003I-02
IDT / ICS 0.7V DIFF/LVDS FREQUENCY SYNTHESIZER
1
ICS841003AKI-02 REV. A MARCH 19, 2007
PRELIMINARY
GENERAL DESCRIPTION
The ICS841003I-02 is a 3 differential output
Synthesizer designed to generate PCI Express or
10 Gigabit reference clock frequencies, and is a
member of the HiPerClock s family of high
performance clock solutions from IDT. Using a
31.25MHz, 26.041666MHz or 25MHz, 18pF parallel resonant
crystal, the following frequencies can be generated based on
the settings of 4 frequency select pins (DIV_SELA[1:0],
DIV_SELB[1:0]): 500MHz, 312.5MHz, 250MHz, 156.25MHz,
125MHz, and 100MHz. The 841003I-02 has 2 output banks,
Bank A with one 0.7V DIFF output pair and Bank B with two
differential LVDS output pairs.
The two banks have their own dedicated frequency select pins
and can be independently set for the frequencies mentioned
above. The ICS841003I-02 uses IDT’s 3rd generation low phase
noise VCO technology and can achieve 1ps or lower typical
rms phase jitter, easily meeting PCI Express jitter requirements.
The ICS841003I-02 is packaged in a 32-pin VFQFN package.
FEATURES
Three differential outputs on two banks, Bank A with one
0.7V DIFF pair and Bank B with two LVDS output pairs
Using a 31.25MHz, 26.041666 or 25MHz crystal, supports
the following frequencies: 625MHz, 500MHz, 312.5MHz,
250MHz, 156.25MHz, 125MHz or 100MHz
Selectable crystal oscillator interface or LVCMOS/LVTTL
single-ended input
VCO range: 490MHz to 680MHz
RMS phase jitter @ 125MHz (1.875MHz - 20MHz):
0.54ps (typical)
Full 3.3V supply mode
-40°C to 85°C ambient operating temperature
Available in both standard (RoHS 5) and lead-free (RoHS 6)
packages
HiPerClockS
ICS
0
1
0
1
Phase
Detector
VCO
490-680MHz
0 = ÷20 (default)
1 = ÷24
0 0
÷1
0 1
÷2 (default)
1 0
÷4
1 1
÷5
0 0
÷1
0 1
÷2 (default)
1 0
÷4
1 1
÷5
FB_DIV
OSC
QA0
nQA0
QB0
nQB0
QB1
nQB1
OEA
DIV_SELA[1:0]
DIV_SELB[1:0]
FB_DIV
MR
OEB
VCO_SEL
XTAL_SEL
IREF
REF_CLK
XTAL_IN
XTAL_OUT
Pullup
Pulldown:Pullup
Pullup
Pulldown
Pullup
Pulldown
Pulldown:Pullup
Pulldown
Pullup
0.7V DIFF
LVDS
BLOCK DIAGRAM
PIN ASSIGNMENT
24
23
22
21
20
19
18
17
QA0
nQA0
GND
QB0
nQB0
QB1
nQB1
VDDO_B
GND
XTAL_IN
XTAL_OUT
XTAL_SEL
VCO_SEL
MR
GND
nc
DIV_SELA1
DIV_SELA0
DIV_SELB1
DIV_SELB0
GND
FB_DIV
OEB
OEA
V
DDO
_
A
IREF
V
DD
V
DD
A
nc
V
DD
REF_CLK
ICS841003I-02
32-Lead VFQFN
5mm x 5mm x 0.75mm
package body
K Package
Top View
32 31 30 29 28 27 26 25
9 10 11 12 13 14 15 16
1
2
3
4
5
6
7
8
The Preliminary Information presented herein represents a product in pre-production. The noted characteristics are based on initial product characterization
and/or qualification. Integrated Device Technology, Incorporated (IDT) reserves the right to change any circuitry or specifications without notice.
相关PDF资料
PDF描述
ICS841003AKI-04LF 680 MHz, OTHER CLOCK GENERATOR, QCC32
ICS841604AGILFT 125 MHz, OTHER CLOCK GENERATOR, PDSO28
ICS841S01BGI 100 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO16
ICS841S01BGT 100 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO16
ICS841S01BG 100 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO16
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