参数资料
型号: LMK04031BEVAL/NOPB
厂商: National Semiconductor
文件页数: 38/65页
文件大小: 0K
描述: EVAL BOARD LMK04031BISQ
标准包装: 1
系列: PowerWise®
主要目的: 计时,多用途
嵌入式:
已用 IC / 零件: LMK04031
已供物品: 板,线缆,文档,软件
C
Po
u
t1
LEuWire
CLKuWire
DATAuWire
GOE
LD
(optional)
To Host
C
L
Ko
u
t0
C
L
Ko
u
t0
*
C
L
Ko
u
t1
*
C
L
Ko
u
t1
C
L
Ko
u
t2
B
C
L
Ko
u
t2
A
C
L
Ko
u
t3
*
C
L
Ko
u
t3
C
L
Ko
u
t4
*
C
L
Ko
u
t4
To
System
SYNC*
C
L
Ki
n
0
C
L
Ki
n
0
*
Bias
Vcc
LDObyp1
LDObyp2
10 PF
0.1 PF
1 PF
0.1 PF
LMK040xx
100
VCXO
OSCin
OSCin*
100
0.1 uF
CLKin1*
CLKin1
0.1 PF
To
System
To Host
CPout2
100 pF
To
System
Fout
Reference Clock #1
(Primary)
Reference Clock #2
(Secondary)
PLL1 Loop Filter
PLL2 Loop Filter
Rterm
0.1 PF
120
120
To
System
To
System
51
0.1 PF
120
120
To
System
0.47 PF
D
L
D
_
BYP
3
p
F
3
p
F
3
p
F
0.1 PF
SNOSAZ8J – SEPTEMBER 2008 – REVISED SEPTEMBER 2011
APPLICATION INFORMATION
System Level Diagram
The following diagram illustrates the typical interconnection of the LMK040xx in a clocking application.
Figure 13. Typical Application
Figure 13 shows an LMK04000 family device with external circuitry. The primary reference clock input is at
CLKin0/0*. A secondary reference clock is driving CLKin1/1*. Both clocks are depicted as AC coupled differential
drivers. The VCXO attached to the OSCin/OSCin* port is configured as an AC coupled single-ended driver. Any
of the input ports (CLKin0/0*, CLKin1/1*, or OSCin/OSCin*) may be configured as either differential or single-
ended. These options are discussed later in the data sheet.
The diagram shows an optional connection between the LD pin and GOE. With this arrangement, the LD pin can
be programmed to output a lock detect signal that is active HIGH (see Table 29 for optional LD pin outputs). If
lock is lost, the LD pin will transition to a LOW, pulling GOE low and causing all clock outputs to be disabled.
This scheme should be used only if disabling the clock outputs is desirable when lock is lost.
Copyright 2008–2011, Texas Instruments Incorporated
43
相关PDF资料
PDF描述
LTC2903CS6-D1#TRMPBF IC QUAD SPLY MONITOR ADJ SOT23-6
3-1906054-1 CA 2MM OFNR 62.5/125,LC SEC GRE
PCV1V820MCL1GS CAP ALUM 82UF 35V 20% SMD
3-1906053-1 CA 2MM OFNR 62.5/125,LC SEC YEL
LMK04033BEVAL/NOPB BOARD EVALUATION LMK04033
相关代理商/技术参数
参数描述
LMK04031BEVALXO 功能描述:时钟和定时器开发工具 LMK04031 EVAL BOARD RoHS:否 制造商:Texas Instruments 产品:Evaluation Modules 类型:Clock Conditioners 工具用于评估:LMK04100B 频率:122.8 MHz 工作电源电压:3.3 V
LMK04031BISQ 制造商:Texas Instruments 功能描述:Clock Conditioner 48-Pin LLP EP T/R
LMK04031BISQ/NOPB 功能描述:时钟合成器/抖动清除器 RoHS:否 制造商:Skyworks Solutions, Inc. 输出端数量: 输出电平: 最大输出频率: 输入电平: 最大输入频率:6.1 GHz 电源电压-最大:3.3 V 电源电压-最小:2.7 V 封装 / 箱体:TSSOP-28 封装:Reel
LMK04031BISQE 制造商:Texas Instruments 功能描述:PRECISION CLOCK CONDITIONER, 48LLP
LMK04031BISQE/NOPB 功能描述:时钟合成器/抖动清除器 RoHS:否 制造商:Skyworks Solutions, Inc. 输出端数量: 输出电平: 最大输出频率: 输入电平: 最大输入频率:6.1 GHz 电源电压-最大:3.3 V 电源电压-最小:2.7 V 封装 / 箱体:TSSOP-28 封装:Reel