参数资料
型号: ICS843020AY-01LFT
厂商: IDT, Integrated Device Technology Inc
文件页数: 1/21页
文件大小: 0K
描述: IC SYNTHESIZER LVPECL 32-LQFP
标准包装: 1,000
系列: HiPerClockS™, FemtoClock™
类型: 频率合成器
PLL: 带旁路
输入: 晶体
输出: LVPECL
电路数: 1
比率 - 输入:输出: 1:2
差分 - 输入:输出: 无/是
频率 - 最大: 680MHz
除法器/乘法器: 是/无
电源电压: 3.135 V ~ 3.465 V
工作温度: 0°C ~ 70°C
安装类型: 表面贴装
封装/外壳: 32-LQFP
供应商设备封装: 32-TQFP(7x7)
包装: 带卷 (TR)
其它名称: 843020AY-01LFT
843020AY-01
www.idt.com
REV. C JULY 26, 2010
1
ICS843020-01
FEMTOCLOCKS 680MHZ, CRYSTAL-TO-
3.3V DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER
GENERAL DESCRIPTION
The ICS843020-01 is a general purpose, dual output
Crystal-to-3.3V Differential LVPECL High Frequency
Synthesizer. The ICS843020-01 is based on I
DT’s 3rd
generation VCO technology and is capable of sub-1ps RMS
Phase Jitter performance, making it ideal for use in 10
Gigabit Ethernet, 10 Gigabit Fibre Channel, SONET and
Serial ATA applications.
The ICS843020-01 is a highly flexible programmable
synthesizer capable of generating output frequencies over a
range of 70MHz to 680MHz. The output frequency can be
programmed in small step sizes as low as 250kHz when
using a 16MHzcrystal,
÷8 input divider, and output divider =
÷8.
BLOCK DIAGRAM
PIN ASSIGNMENT
FEATURES
Dual differential 3.3V LVPECL outputs
Selectable crystal oscillator interface
or LVCMOS/LVTTL TEST_CLK
Output frequency range: 70MHz to 680MHz
Crystal input frequency range: 12MHz to 32MHz
VCO range: 560MHz to 680MHz
Parallel or serial interface for programming feedback
and output dividers
Input P_DIV under parallel load control
RMS phase jitter at 156.25MHz (1.875MHz to 20MHz):
0.49ps (typical), P_DIV =
÷1
3.3V supply voltage
0°C to 70°C ambient operating temperature
Lead-Free package 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
VCCA
S_LOAD
S_DATA
S_CLOCK
MR
M5
M6
M7
M8
N0
N1
P_DIV
VEE
V
EE
nFOUT0
FOUT0
V
CCO
nFOUT1
FOUT1
V
CC
TEST
XTAL_IN
nP_LOAD
VCO_SEL
M0
M1
M2
M3
M4
32-Lead LQFP
7mm x 7mm x 1.4mm package body
Y Package
Top View
ICS843020-01
OSC
VCO_SEL
XTAL_SEL
TEST_CLK
XTAL_IN
XTAL_OUT
P_DIV
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
MR
÷ 1
÷ 2
÷ 4
÷ 8
0
÷8
Float
÷1 (default)
1
÷4
÷N
÷ P
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