参数资料
型号: ICS8427BK-02
厂商: INTEGRATED DEVICE TECHNOLOGY INC
元件分类: XO, clock
英文描述: 700 MHz, OTHER CLOCK GENERATOR, QCC32
封装: 5 X 5 MM, 0.75 MM HEIGHT, MO-220, VFQFN-32
文件页数: 1/19页
文件大小: 280K
代理商: ICS8427BK-02
8427BY-02
www.icst.com/products/hiperclocks.html
REV. A MARCH 4, 2005
1
PRELIMINARY
Integrated
Circuit
Systems, Inc.
ICS8427-02
700MHZ, LOW JITTER
LVCMOS/CRYSTAL-TO-LVHSTL FREQUENCY SYNTHESIZER
GENERAL DESCRIPTION
The ICS8427-02 is a general purpose, six
LVHSTL output high frequency synthesizer and
a member of the HiPerClockS family of High
Performance Clock Solutions from ICS. The
ICS8427-02 can support a very wide output fre-
quency range of 15.625MHz to 700MHz. The device powers
up at a default output frequency of 200MHz with a 16.66MHz
crystal interface, and the frequency can then be changed
using the serial programming interface to change the M feed-
back divider and N output divider. Frequency steps as small
as 125KHz can be achieved using a 16.66MHz crystal and
the output divider set for
÷16. The low jitter and frequency
range of the ICS8427-02 make it an ideal clock generator for
most clock tree applications.
FEATURES
6 differential LVHSTL outputs
Selectable crystal input interface or TEST_CLK input
TEST_CLK accepts the following input types:
LVCMOS, LVTTL
Output frequency range: 15.625MHz to 700MHz
VCO range: 250MHz to 700MHz
Serial interface for programming feedback and output dividers
Supports SSC, -0.5% downspread. Can be enabled through
use of the serial programming interface.
Output skew: 60ps (typical)
Cycle-to-cycle jitter: 30ps (typical)
2.5V core/1.8V output supply voltage
0°C to 70°C ambient operating temperature
Industrial temperature information available upon request
HiPerClockS
ICS
BLOCK DIAGRAM
PIN ASSIGNMENT
32 31 30 29 28 27 26 25
9
10 11 12 13 14 15 16
1
2
3
4
5
6
7
8
24
23
22
21
20
19
18
17
XTAL_OUT
TEST_CLK
XTAL_SEL
VDDA
S_LOAD
S_DATA
S_CLOCK
MR
VDDO
FOUT2
nFOUT2
VDDO
FOUT3
nFOUT3
OE
GND
nFOUT5
FOUT5
V
DDO
nFOUT4
FOUT4
V
DD
TEST
XT
AL_IN
V
DD
VCO_SEL
FOUT0
nFOUT0
V
DDO
FOUT1
nFOUT1
32-Lead LQFP
7mm x 7mm x 1.4mm package body
Y Package
Top View
ICS8427-02
OSC
VCO_SEL
XTAL_SEL
TEST_CLK
XTAL_IN
XTAL_OUT
OE
S_LOAD
S_DATA
S_CLOCK
VCO
PLL
FOUT0
nFOUT0
FOUT1
nFOUT1
FOUT2
nFOUT2
FOUT3
nFOUT3
FOUT4
nFOUT4
FOUT5
nFOUT5
TEST
÷ 1,
÷ 2,
÷ 4,
÷ 8,
÷ 16
CONFIGURATION
INTERFACE
LOGIC
÷ M
0
1
0
1
÷ 16
PHASE DETECTOR
MR
÷ 2
32-Lead VFQFN
5mm x 5mm x 0.75mm package body
K Package
Top View
The Preliminary Information presented herein represents a product in prototyping or pre-production. The noted characteristics are based on initial
product characterization. Integrated Circuit Systems, Incorporated (ICS) reserves the right to change any circuitry or specifications without notice.
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