参数资料
型号: ICS8432AY-101T
厂商: INTEGRATED DEVICE TECHNOLOGY INC
元件分类: 时钟及定时
英文描述: PLL BASED CLOCK DRIVER, 2 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP32
封装: 7 X 7 MM, 1.40 MM HEIGHT, MS-026, LQFP-32
文件页数: 1/10页
文件大小: 114K
代理商: ICS8432AY-101T
8432AY-101
www.icst.com/products/hiperclocks.html
REV. B JULY 30, 2001
1
PRELIMINARY
Integrated
Circuit
Systems, Inc.
ICS8432-101
700MHZ, LOW PHASE NOISE,
LVPECL FREQUENCY SYNTHESIZER
GENERAL DESCRIPTION
The ICS8432-101 is a general purpose, dual out-
put high frequency synthesizer and a member of
the HiPerClockS family of High Performance
Clocks Solutions from ICS. 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 differential or single ended reference 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 ICS8432-101 makes it an ideal clock
source for Gigabit Ethernet, Fiber Channel 1 and 2, Infiniband
and Sonet OC3 and OC12 applications.
BLOCK DIAGRAM
PIN ASSIGNMENT
FEATURES
FOUT0 and FOUT1 differential 3.3V LVPECL outputs
Selectable CLK, nCLK and LVCMOS reference inputs
CLK, nCLK pair can accept the following differential input
levels: LVPECL, LVHSTL, LVDS, SSTL
Maximum output frequency: 31.25MHz to 700MHz
Differential input or reference input frequency:
14MHz to 25MHz
VCO range: 250MHz - 700MHz
Accepts any single-ended input signal to LVCMOS with
resistor bias on nCLK input
Parallel interface for programming counter and output
dividers
3.3V supply voltage
0°C to 70°C ambient operating temperature
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
CLK
TEST_CLK
CLK_SEL
VCCA
S_LOAD
S_DATA
S_CLOCK
MR
M5
M6
M7
M8
N0
N1
nc
VEE
nFOUT0
FOUT0
VCCO
nFOUT1
FOUT1
VCC
TEST
nCLK
nP_LOAD
VCO_SEL
M0
M1
M2
M3
M4
32-Lead LQFP
7mm x 7mm x 1.4mm Package Body
Y Package
Top View
ICS8432-101
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.
VCO_SEL
CLK_SEL
TEST_CLK
CLK
S_LOAD
S_DATA
S_CLOCK
nP_LOAD
M0:M8
N0:N1
VCO
PLL
FOUT0
nFOUT0
FOUT1
nFOUT1
TEST
CONFIGURATION
INTERFACE
LOGIC
÷ M
0
1
0
1
PHASE DETECTOR
÷ N
MR
HiPerClockS
,&6
nCLK
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