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參數(shù)資料
| 型號： | ICS8402I |
| 英文描述： | 350MHZ, CRYSTAL-TO-LVCMOS / LVTTL FREQUENCY SYNTHESIZER |
| 中文描述： | 350MHz頻段，水晶到的LVCMOS / LVTTL頻率合成器 |
| 文件頁數(shù)： | 1/13頁 |
| 文件大?。?/td> | 174K |
| 代理商： | ICS8402I |
8402AYI
www.icst.com/products/hiperclocks.html
REV. A DECEMBER 23, 2004
1
Integrated
Circuit
Systems, Inc.
ICS8402I
350MH
Z
, C
RYSTAL
-
TO
-LVCMOS / LVTTL
F
REQUENCY
S
YNTHESIZER
G
ENERAL
D
ESCRIPTION
The ICS8402I is a general purpose, Crystal-to-
LVCMOS/LVTTL High Frequency Synthesizer and
a member of the HiPerClockS family of High
Performance Clock Solutions from ICS. The
ICS8402I has a selectable TEST_CLK or crystal
inputs. The VCO operates at a frequency range of 250MHz
to 700MHz. The VCO frequency is programmed in steps equal
to the value of the input reference or crystal frequency. The
VCO and output frequency can be programmed using the
serial or parallel interfaces to the configuration logic. The low
phase noise characteristics of the ICS8402I make it an ideal
clock source for Gigabit Ethernet and SONET applications.
B
LOCK
D
IAGRAM
P
IN
A
SSIGNMENT
F
EATURES
(2) LVCMOS/LVTTL outputs
Selectable crystal oscillator interface
or LVCMOS/LVTTL TEST_CLK
Output frequency range: 15.625MHz - 350MHz
Crystal input frequency range: 12MHz to 40MHz
VCO range: 250MHz to 700MHz
Parallel or serial interface for programming counter
and output dividers
RMS period jitter: 30ps (maximum)
Cycle-to-cycle jitter: 100ps (maximum)
Full 3.3V or mixed 3.3V core/2.5V output supply voltage
-40°C to 85°C ambient operating temperature
Lead-Free fully RoHS compliant
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
V
DDA
S_LOAD
S_DATA
S_CLOCK
MR
M5
M6
M7
M8
N0
N1
nc
GND
32-Lead LQFP
7mm x 7mm x 1.4mm package body
Y Package
Top View
ICS8402I
HiPerClockS
ICS
OSC
OE0
OE1
XTAL_SEL
TEST_CLK
XTAL_IN
XTAL_OUT
S_LOAD
S_DATA
S_CLOCK
nP_LOAD
M0:M8
N0:N1
VCO
PLL
Q0
Q1
TEST
CONFIGURATION
INTERFACE
LOGIC
÷
M
0
1
0
1
PHASE DETECTOR
÷
2
÷
4
÷
8
÷
16
MR
T
V
D
O
O
V
D
Q
Q
G
X
n
V
M
M
M
M
M
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