参数资料
型号: ICS843253AGI-45LF
厂商: IDT, Integrated Device Technology Inc
文件页数: 8/15页
文件大小: 0K
描述: IC SYNTHESIZER LVPECL 16-TSSOP
标准包装: 96
系列: HiPerClockS™, FemtoClock™
类型: 频率合成器
PLL: 带旁路
输入: 晶体
输出: LVCMOS,LVPECL,LVTTL
电路数: 1
比率 - 输入:输出: 1:3
差分 - 输入:输出: 无/是
频率 - 最大: 156.25MHz
除法器/乘法器: 是/无
电源电压: 3.135 V ~ 3.465 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 16-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 16-TSSOP
包装: 管件
其它名称: 843253AGI-45LF
ICS843253I-45
FEMTOCLOCK CRYSTAL-TO-3.3V LVPECL FREQUENCY SYNTHESIZER
ICS843253AGI-45 REVISION A JULY 20, 2009
2
2009 Integrated Device Technology, Inc.
Table 1. Pin Descriptions
NOTE: Pullup refers to internal input resistors. See Table 2, Pin Characteristics, for typical values.
Table 2. Pin Characteristics
Function Tables
Table 3A. CLK_ENA Function Table
Table 3B. CLK_ENB Function Table
Number
Name
Type
Description
1
CLK_ENA
Input
Pullup
Output enable pin for QA/nQA outputs. LVCMOS/LVTTL interface levels.
See Table 3A.
2, 9, 15
VEE
Power
Negative supply pins.
3, 4
QA, nQA
Output
Differential output pair. LVPECL interface levels.
5VCCOA
Power
Output supply pin for QA/nQA outputs.
6VCCA
Power
Analog supply pin.
7VCC
Power
Core supply pin.
8
REF_OUT
Output
Single-ended reference clock output. LVCMOS/LVTTL interface level.
20
typical output impedance.
10
11
XTAL_OUT
XTAL_IN
Input
Crystal oscillator interface XTAL_IN is the input, XTAL_OUT is the output.
12
VCCOB
Power
Output supply pin for QB/nQB outputs.
13, 14
nQB, QB
Output
Differential output pair. LVPECL interface levels.
16
CLK_ENB
Input
Pullup
Output enable pin for QB/nQB outputs. LVCMOS/LVTTL interface levels.
See Table 3B.
Symbol
Parameter
Test Conditions
Minimum
Typical
Maximum
Units
CIN
Input Capacitance
4pF
RPULLUP
Input Pullup Resistor
51
k
ROUT
Output impedance
REF_OUT
20
Input
Outputs
CLK_ENA
QA
nQA
0LOW
HIGH
1 (default)
Active
Input
Outputs
CLK_ENB
QB
nQB
0LOW
HIGH
1 (default)
Active
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