参数资料
型号: AD9577BCPZ-RL
厂商: Analog Devices Inc
文件页数: 5/44页
文件大小: 0K
描述: IC CLK GEN PLL DUAL 40LFCSP
标准包装: 2,500
系列: PCI Express® (PCIe)
类型: 扇出缓冲器(分配),网络时钟发生器,多路复用器
PLL:
主要目的: 以太网,PCI Express(PCIe),SONET/SDH
输入: 时钟,晶体
输出: LVCMOS,LVDS,LVPECL
电路数: 1
比率 - 输入:输出: 2:5
差分 - 输入:输出: 无/是
频率 - 最大: 637.5MHz
电源电压: 3 V ~ 3.6 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 40-WFQFN 裸露焊盘,CSP
供应商设备封装: 40-LFCSP-WQ(6x6)
包装: 带卷 (TR)
Data Sheet
AD9577
Rev. 0 | Page 13 of 44
CLOCK OUTPUTS
AC coupling capacitors of 0.1 μF used where appropriate.
Table 8.
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
LVPECL CLOCK OUTPUTS
Output Frequency
637.5
MHz
Load is 200 Ω to GND at output pins, then
ac-coupled to 50 Ω terminated measurement
equipment.
Output Voltage Swing, VOD
610
740
950
mV
Load is 200 Ω to GND at output pins, then
ac-coupled to 50 Ω terminated measurement
equipment. For differential amplitude, see
Duty Cycle
45
55
%
Load is 200 Ω to GND at output pins, then
ac-coupled to 50 Ω terminated measurement
equipment.
Output High Voltage, VOH
VS 1.24
VS 0.94
VS 0.83
V
Load is 127 Ω/83 Ω potential divider across
supply dc-coupled into 1 MΩ terminated
measurement equipment, outputs static.
Output Low Voltage, VOL
VS 2.07
VS 1.75
VS 1.62
V
Load is 127 Ω/83 Ω potential divider across
supply dc-coupled into 1 MΩ terminated
measurement equipment, outputs static.
LVDS CLOCK OUTPUTS
Output Frequency
637.5
MHz
Load is ac-coupled to measurement
equipment that provides 100 Ω differential
input termination.
Differential Output Voltage, VOD
250
350
475
mV
Load is ac-coupled to measurement
equipment that provides 100 Ω differential
input termination. For differential amplitude,
Delta VOD
25
mV
Load is ac-coupled to measurement
equipment that provides 100 Ω differential
input termination.
Duty Cycle
45
55
%
Load is ac-coupled to measurement
equipment that provides 100 Ω differential
input termination.
Output Offset Voltage, VOS
1.125
1.25
1.375
V
Load is dc-coupled to a 100 Ω differential
resistor into 1 MΩ terminated measurement
equipment, outputs static.
Delta VOS
25
mV
Load is dc-coupled to a 100 Ω differential
resistor into 1 MΩ terminated measurement
equipment, outputs static.
Short-Circuit Current, ISA, ISB
13
24
mA
Load is dc-coupled to a 100 Ω differential
resistor into 1 MΩ terminated measurement
equipment, output shorted to GND.
CMOS CLOCK OUTPUTS
Output Frequency
200
MHz
Output High Voltage, VOH
VS 0.15
V
Sourcing 1.0 mA current, outputs static.
Output Low Voltage, VOL
0.1
V
Sinking 1.0 mA current, outputs static.
Duty Cycle
45
55
%
Termination is high impedance active probe;
total CLOAD = 5 pF, RLOAD = 20 kΩ.
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