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參數(shù)資料
| 型號(hào)： | ICS843011CGLF |
| 英文描述： | FEMTOCLOCKS-TM CRYSTAL-TO- 3.3V LVPECL CLOCK GENERATOR |
| 中文描述： | FEMTOCLOCKS -商標(biāo)晶體至3.3V的LVPECL時(shí)鐘發(fā)生器 |
| 文件頁(yè)數(shù)： | 6/11頁(yè) |
| 文件大?。?/td> | 163K |
| 代理商： | ICS843011CGLF |
843011CG
www.icst.com/products/hiperclocks.html
REV. A JANUARY 25, 2006
6
Integrated
Circuit
Systems, Inc.
ICS843011C
F
EMTO
C
LOCKS
C
RYSTAL
-
TO
-
3.3V LVPECL C
LOCK
G
ENERATOR
PRELIMINARY
A
PPLICATION
S
CHEMATIC
Figure 3A
shows a schematic example of the ICS843011C.
An example of LVEPCL termination is shown in this sche-
matic. Additional LVPECL termination approaches are shown
in the LVPECL Termination Application Note. In this example,
an 18 pF parallel resonant 26.5625MHz crystal is used for
generating 106.25MHz output frequency. The C1 = 27pF and
C2 = 33pF are recommended for frequency accuracy. For
different board layout, the C1 and C2 values may be slightly
adjusted for optimizing frequency accuracy.
F
IGURE
3A. ICS843011C S
CHEMATIC
E
XAMPLE
F
IGURE
3B. ICS843011 PC B
OARD
L
AYOUT
E
XAMPLE
PC B
OARD
L
AYOUT
E
XAMPLE
Figure 3B
shows an example of ICS843011C P.C. board lay-
out. The crystal X1 footprint shown in this example allows
installation of either surface mount HC49S or through-hole
HC49 package. The footprints of other components in this
example are listed in the
Table 6.
There should be at least one
decoupling capacitor per power pin. The decoupling capaci-
tors should be located as close as possible to the power pins.
The layout assumes that the board has clean analog power
ground plane.
T
ABLE
6. F
OOTPRINT
T
ABLE
e
c
n
e
r
e
R
2
C
,
C
3
C
5
C
,
C
2
R
e
a
T
:
E
T
O
N
n
w
o
h
s
s
e
z
e
2
5
3
3
e
n
x
e
z
S
4
0
8
0
6
0
6
0
o
p
m
t
o
y
a
0
0
0
0
t
m
a
o
c
s
s
n
.
R5
50
Zo = 50 Ohm
C4
C2
33pF
XTAL_IN
Q
nQ
18pF
VCCA
R5
133
R2
10
Zo = 50 Ohm
C5
R6
50
Zo = 50 Ohm
R4
82.5
+
-
Optional
Y-Termination
Q
XTAL_OUT
X1
26.5625MHz
Zo = 50 Ohm
nQ
VCC
VCC
C1
+
-
R7
50
U2
843011C
1
2
3
4
8
7
6
5
VCCA
VEE
XTAL_OUT
XTAL_IN
VCC
Q
nQ
nc
R6
82.5
C3
10uF
VCC
R3
133
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ICS843011CGLFT | FEMTOCLOCKS-TM CRYSTAL-TO- 3.3V LVPECL CLOCK GENERATOR |
| ICS843011CGT | FEMTOCLOCKS-TM CRYSTAL-TO- 3.3V LVPECL CLOCK GENERATOR |
| ICS843011 | FEMTOCLOCKS-TM CRYSTAL-TO- 3.3V LVPECL CLOCK GENERATOR |
| ICS843011AG | FEMTOCLOCKS-TM CRYSTAL-TO- 3.3V LVPECL CLOCK GENERATOR |
| ICS843011AGLF | FEMTOCLOCKS-TM CRYSTAL-TO- 3.3V LVPECL CLOCK GENERATOR |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ICS843011CGLFT | 功能描述:IC CLK GENERATOR LVPECL 8-TSSOP RoHS:是 類別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 時(shí)鐘發(fā)生器，PLL，頻率合成器 系列:HiPerClockS™, FemtoClock™ 標(biāo)準(zhǔn)包裝:1,000 系列:- 類型:時(shí)鐘/頻率合成器，扇出分配 PLL:- 輸入:- 輸出:- 電路數(shù):- 比率 - 輸入:輸出:- 差分 - 輸入:輸出:- 頻率 - 最大:- 除法器/乘法器:- 電源電壓:- 工作溫度:- 安裝類型:表面貼裝 封裝/外殼:56-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:56-VFQFP-EP（8x8） 包裝:帶卷 (TR) 其它名稱:844S012AKI-01LFT |
| ICS843011CGT | 制造商:ICS 制造商全稱:ICS 功能描述:FEMTOCLOCKS-TM CRYSTAL-TO- 3.3V LVPECL CLOCK GENERATOR |
| ICS843020-01 | 制造商:ICS 制造商全稱:ICS 功能描述:FEMTOCLOCKS-TM 680MHZ, CRYSTAL-TO- 3.3V DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER |
| ICS843020A01 | 制造商:ICS 制造商全稱:ICS 功能描述:FEMTOCLOCKS-TM 680MHZ, CRYSTAL-TO- 3.3V DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER |
| ICS843020AY-01 | 制造商:ICS 制造商全稱:ICS 功能描述:FEMTOCLOCKS-TM 680MHZ, CRYSTAL-TO- 3.3V DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER |
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