參數(shù)資料
型號(hào)： TF1004A
英文描述： LG1600FXH Clock and Data Regenerator
中文描述： LG1600FXH時(shí)鐘和數(shù)據(jù)再生
文件頁(yè)數(shù)： 5/20頁(yè)
文件大?。?/td> 492K
代理商： TF1004A
Data Sheet
August 1999
LG1600FXH Clock and Data Regenerator
5
Lucent Technologies Inc.
Theory of Operation
(continued)
A more useful expression of the PLL characteristics is
the following
*
:
The jitter transfer is now directly expressed in the phys-
ical loop gain pole product,
ω
b
, and the loop filter time
constant,
τ
. Damping ratio,
,
and natural frequency,
ω
n
,
simply relate to these two parameters as follows:
and
* Wolaver, D.H., Phase-Locked Loop Circuit Design Prentice Hall,
1991.
H s
ω
b
1
-------------------------------------
s
τ
1
+
1
s
τ
s
ω
b
1
-----
+
+
=
ω
b
τ
0.5
=
ω
n
ω
n
τ
=
For moderate damping
> 2.5
(ω
b
τ
< 0.1), the –3 dB
bandwidth of the PLL can be approximated by the loop
gain pole product:
J
BW
≈
ω
b
= K
d
R
x
K
o
while the jitter peaking can be expressed in terms of
the product of PLL bandwidth and loop filter time con-
stant:
b
τ
As the last two expressions make clear, the PLL band-
width is controlled by the value of the external resistor
(see Figure 8), while the peaking depends both on the
resistor value (quadratically) and total loop filter capac-
itance.
H s
max
1
--1
+
≈
1
R
x
2
CK
d
K
o
----------1
+
=
12-3231(F)r.4—12-3232(F)r.4
Figure 8. Jitter Bandwidth vs. External Resistor Value
0
50
100
200
250
0.0
0.2
0.6
0.8
1.0
1.2
Rx (
)
0.4
150
A. LG1600FXH0622 (Cx = 0.15
μ
F)
10
°
C
70
°
C
25
°
C
J
B
0
50
100
200
250
0.0
0.6
1.8
2.4
3.0
3.6
Rx (
)
1.2
150
B. LG1600FXH2488 (Cx = 0)
10
°
C
J
B
25
°
C
70
°
C
相關(guān)PDF資料
PDF描述
TF1006A LG1625AXF Laser Driver
TFA9841J 1-channel audio amplifier
TFA9843J 2-channel audio amplifier (SE: 1 W to 20 W or BTL: 4 W to 40 W)
TFDS3000 CONNECTOR ACCESSORY
TFMS5560 Photo Modules for PCM Remote Control Systems
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TF100-5 制造商:RHOMBUS-IND 制造商全稱(chēng):Rhombus Industries Inc. 功能描述:TF Series High Performance 20 Section 10-Tap Delay Lines / SP3 Series
TF100505 制造商:FRONTIER 制造商全稱(chēng):Frontier Electronics. 功能描述:Tape and Reel Specifications
TF100505-10NJ 制造商:FRONTIER 制造商全稱(chēng):Frontier Electronics. 功能描述:Multi-layers Chip Inductors
TF100505-10NK 制造商:FRONTIER 制造商全稱(chēng):Frontier Electronics. 功能描述:Multi-layers Chip Inductors
TF100505-12NJ 制造商:FRONTIER 制造商全稱(chēng):Frontier Electronics. 功能描述:Multi-layers Chip Inductors
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*