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参数资料
| 型号： | 844031AG-01LFT |
| 厂商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分类： | 时钟产生/分配 |
| 英文描述： | 340 MHz, OTHER CLOCK GENERATOR, PDSO8 |
| 封装： | 4.40 X 3 MM, 0.925 MM HEIGHT, ROHS COMPLIANT, MO-153, TSSOP-8 |
| 文件页数： | 13/13页 |
| 文件大小： | 278K |
| 代理商： | 844031AG-01LFT |
IDT / ICS LVDS CLOCK GENERATOR
9
ICS844031BG-01 REV. A MAY 1, 2008
ICS844031-01
FEMTOCLOCKS CRYSTAL-TO-LVDS CLOCK GENERATOR
FIGURE 5A. APPLICATION SCHEMATIC EXAMPLE
APPLICATION SCHEMATIC
Figure 5A provides a schematic example of ICS844031-01. In
this example, an 18 pF parallel resonant crystal is used. The
C1= 22pF and C2 = 22pF are recommended for frequency. The
C1 and C2 values may be slightly adjusted for optimizing frequency
accuracy. At least one decoupling capacitor near the power pin
is required. Suggested value range is from 0.01uF to 0.1uF.
Other filter type can be added depending on the system power
supply noise type.
FIGURE 5B. ICS844031-01 PC BOARD LAYOUT EXAMPLE
PC BOARD LAYOUT EXAMPLE
Figure 5B shows an example of ICS844031-01 P.C. board layout.
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 capacitors should be located as
close as possible 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
VDDA
R2
10
CL=18pF
VDD
Zo = 50 Ohm
U1
ICS844031-01
1
2
3
4
8
7
6
5
VCCA
GND
XTAL_OUT
XTAL_IN
VDD
Q0
nQ0
OE
C3
10uF
LVDS
+
-
R1
1K
VDD= 3.3V or 2.5V
C4
0.01u
VDD
Zo = 50 Ohm
C1
27pF
VDD
C5
0.1u
C2
33pF
R3
100
X1
相关PDF资料 |
PDF描述 |
|---|---|
| 844031AG-01LF | 340 MHz, OTHER CLOCK GENERATOR, PDSO8 |
| 84450-1 | 50 CONTACT(S), MALE, RIGHT ANGLE TWO PART BOARD CONNECTOR, SOLDER |
| 84476-1 | 4 CONTACT(S), MALE, STRAIGHT TWO PART BOARD CONNECTOR, SURFACE MOUNT |
| 84476-2 | 6 CONTACT(S), MALE, STRAIGHT TWO PART BOARD CONNECTOR, SURFACE MOUNT |
| 84476-3 | 16 CONTACT(S), MALE, STRAIGHT TWO PART BOARD CONNECTOR, SURFACE MOUNT |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 844031BG-01LF | 功能描述:时钟发生器及支持产品 RoHS:否 制造商:Silicon Labs 类型:Clock Generators 最大输入频率:14.318 MHz 最大输出频率:166 MHz 输出端数量:16 占空比 - 最大:55 % 工作电源电压:3.3 V 工作电源电流:1 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-56 |
| 844031BG-01LFT | 功能描述:时钟发生器及支持产品 RoHS:否 制造商:Silicon Labs 类型:Clock Generators 最大输入频率:14.318 MHz 最大输出频率:166 MHz 输出端数量:16 占空比 - 最大:55 % 工作电源电压:3.3 V 工作电源电流:1 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-56 |
| 844031BGI-01 | 制造商:Integrated Device Technology Inc 功能描述:PLL Clock Generator Single 8-Pin TSSOP Tube 制造商:Integrated Device Technology Inc 功能描述:8 TSSOP - Bulk |
| 844031BGI-01LF | 功能描述:时钟发生器及支持产品 RoHS:否 制造商:Silicon Labs 类型:Clock Generators 最大输入频率:14.318 MHz 最大输出频率:166 MHz 输出端数量:16 占空比 - 最大:55 % 工作电源电压:3.3 V 工作电源电流:1 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-56 |
| 844031BGI-01LFT | 功能描述:时钟发生器及支持产品 RoHS:否 制造商:Silicon Labs 类型:Clock Generators 最大输入频率:14.318 MHz 最大输出频率:166 MHz 输出端数量:16 占空比 - 最大:55 % 工作电源电压:3.3 V 工作电源电流:1 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-56 |
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