参数资料
型号: ICS843011AGLFT
厂商: IDT, Integrated Device Technology Inc
文件页数: 12/14页
文件大小: 0K
描述: IC SYNTHESIZER LVPECL 8-TSSOP
标准包装: 2,500
系列: HiPerClockS™, FemtoClock™
类型: 时钟/频率合成器,时钟发生器
PLL:
输入: 晶体
输出: LVPECL
电路数: 1
比率 - 输入:输出: 1:1
差分 - 输入:输出: 无/是
频率 - 最大: 113.33MHz
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: 8-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 8-TSSOP
包装: 带卷 (TR)
其它名称: 843011AGLFT
843011AG
www.idt.com
REV. B JULY 26, 2010
7
ICS843011
FEMTOCLOCKSCRYSTAL-TO-
3.3V LVPECL CLOCK GENERATOR
APPLICATION SCHEMATIC
Figure 3A shows a schematic example of the ICS843011.
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.
FIGURE 3A. ICS843011 SCHEMATIC EXAMPLE
FIGURE 3B. ICS843011 PC BOARD LAYOUT EXAMPLE
PC BOARD LAYOUT EXAMPLE
Figure 3B shows an example of ICS843011 P.C. board
layout. The crystal X1 footprint shown in this example al-
lows 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 capacitors should be located as close as pos-
sible to the power pins. The layout assumes that the board
has clean analog power ground plane.
TABLE 6. FOOTPRINT TABLE
e
c
n
e
r
e
f
e
Re
z
i
S
2
C
,
1
C2
0
4
0
3
C5
0
8
0
5
C
,
4
C3
0
6
0
2
R3
0
6
0
t
n
e
n
o
p
m
o
c
s
t
s
il
,
6
e
l
b
a
T
:
E
T
O
N
.
e
l
p
m
a
x
e
t
u
o
y
a
l
s
i
h
t
n
i
n
w
o
h
s
e
z
i
s
R2
10
1 8 p F
VCC
Zo = 50 Ohm
VCC
R4
82.5
C3
10uF
C2
33pF
R6
82.5
R5
133
nQ
+
-
U1
ICS843011
1
2
3
4
8
7
6
5
VCCA
VEE
XTAL_OUT
XTAL_IN
VCC
Q0
nQ0
NC
VCCA
R3
133
X1
Q
C5
0.1u
C4
0.01u
VCC=3.3V
C1
22pF
VCC
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ICS843011AGT 制造商:ICS 制造商全称:ICS 功能描述:FEMTOCLOCKS-TM CRYSTAL-TO- 3.3V LVPECL CLOCK GENERATOR
ICS843011C 制造商:ICS 制造商全称:ICS 功能描述:FEMTOCLOCKS-TM CRYSTAL-TO- 3.3V LVPECL CLOCK GENERATOR
ICS843011CG 制造商:ICS 制造商全称:ICS 功能描述:FEMTOCLOCKS-TM CRYSTAL-TO- 3.3V LVPECL CLOCK GENERATOR
ICS843011CGLF 功能描述:IC CLK GENERATOR LVPECL 8-TSSOP RoHS:是 类别:集成电路 (IC) >> 时钟/计时 - 时钟发生器,PLL,频率合成器 系列:HiPerClockS™, FemtoClock™ 标准包装:1,000 系列:- 类型:时钟/频率合成器,扇出分配 PLL:- 输入:- 输出:- 电路数:- 比率 - 输入:输出:- 差分 - 输入:输出:- 频率 - 最大:- 除法器/乘法器:- 电源电压:- 工作温度:- 安装类型:表面贴装 封装/外壳:56-VFQFN 裸露焊盘 供应商设备封装:56-VFQFP-EP(8x8) 包装:带卷 (TR) 其它名称:844S012AKI-01LFT
ICS843011CGLFT 功能描述:IC CLK GENERATOR LVPECL 8-TSSOP RoHS:是 类别:集成电路 (IC) >> 时钟/计时 - 时钟发生器,PLL,频率合成器 系列:HiPerClockS™, FemtoClock™ 标准包装:1,000 系列:- 类型:时钟/频率合成器,扇出分配 PLL:- 输入:- 输出:- 电路数:- 比率 - 输入:输出:- 差分 - 输入:输出:- 频率 - 最大:- 除法器/乘法器:- 电源电压:- 工作温度:- 安装类型:表面贴装 封装/外壳:56-VFQFN 裸露焊盘 供应商设备封装:56-VFQFP-EP(8x8) 包装:带卷 (TR) 其它名称:844S012AKI-01LFT