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参数资料
| 型号： | ICS84327AM |
| 厂商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分类： | 时钟产生/分配 |
| 英文描述： | 625 MHz, OTHER CLOCK GENERATOR, PDSO24 |
| 封装： | 7.50 X 15.33 MM, 2.30 MM HEIGHT, MS-013, MO-119, SOIC-24 |
| 文件页数： | 16/16页 |
| 文件大小： | 436K |
| 代理商： | ICS84327AM |
84327AM
www.icst.com/products/hiperclocks.html
REV. A SEPTEMBER 18, 2003
9
Integrated
Circuit
Systems, Inc.
ICS84327
CRYSTAL-TO-3.3V LVPECL
FREQUENCY SYNTHESIZER W/INTEGRATED FANOUT BUFFER
PRELIMINARY
CRYSTAL INPUT INTERFACE
The ICS84327 has been characterized with 18pF parallel reso-
nant crystals. The capacitor values shown in
Figure 4 below were
Figure 4. CRYSTAL INPUt INTERFACE
C2
22pF
C1
18pF
25MHz X1
ICS84327
19
20
XTAL2
XTAL1
determined using a 25MHz 18pF parallel resonant crystal and
were chosen to minimize the ppm error.
FIGURE 5A. ICS84327 SCHEMATIC EXAMPLE
SCHEMATIC EXAMPLE
Figure 5A shows a schematic example of using an ICS84327.
In this example, the input is a 25MHz parallel resonant crystal
with load capacitor CL=18pF. The frequency fine tuning
capacitors C1 and C2 is 22pF and 18pF respectively. This
example also shows logic control input handling. The configu-
ration is set at F_SEL[2:0]=011, therefore, the output frequency
is 625MHz. It is recommended to have one decouple capaci-
tor per power pin. Each decoupling capacitor should be lo-
cated as close as possible to the power pin. The low pass
filter R7, C11 and C16 for clean analog supply should also be
located as close to the V
CCA pin as possible.
RD3
SP
(U1,13)
Zo = 50
RU2
1K
VCCA
C5
0.1u
(U1,24)
VCC
R4
1K
F_SEL1
C1
22p
C6
0.1u
F_SEL0
VCC=3.3V
RU1
SP
RD2
SP
RD1
1K
X1
25MHz,18pF
+
-
R1
50
VCC
F_SEL2
R5
1K
C2
18p
F_SEL1
VCC
F_SEL0
U1
ICS84327
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
Q0
nQ0
Q1
nQ1
Q2
nQ2
Q3
nQ3
Q4
nQ4
Q5
nQ5
VCCO
VEE
PLL_SEL
VCC
VCCA
F_SEL2
XTAL2
XTAL1
MR
F_SEL1
F_SEL0
VCCO
SP = Spare, Not Installed
RU3
1K
C16
10u
VCC
Zo = 50
F_SEL2
C11
0.1u
C3
0.1u
e.g. F_SEL[2:0]=011
R7
24
(U1,16)
VCC
R2
50
R3
50
ICS84327
CRYSTAL-TO-3.3V LVPECL FREQUENCY SYNTHESIZER W/INTEGRATED FANOUT BUFFER
TSD
IDT / ICS CRYSTAL-TO-3.3V LVPECL FREQUENCY SYNTHESIZER W/INTEGRATED FANOUT BUFFER
ICS84327
9
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ICS84327AMLF | 功能描述:IC SYNTHESIZER LVPECL 24SOIC RoHS:是 类别:集成电路 (IC) >> 时钟/计时 - 专用 系列:HiPerClockS™ 标准包装:1,500 系列:- 类型:时钟缓冲器/驱动器 PLL:是 主要目的:- 输入:- 输出:- 电路数:- 比率 - 输入:输出:- 差分 - 输入:输出:- 频率 - 最大:- 电源电压:3.3V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:28-SSOP（0.209"，5.30mm 宽） 供应商设备封装:28-SSOP 包装:带卷 (TR) 其它名称:93786AFT |
| ICS84327AMLFT | 功能描述:IC SYNTHESIZER LVPECL 24SOIC RoHS:是 类别:集成电路 (IC) >> 时钟/计时 - 专用 系列:HiPerClockS™ 标准包装:1,500 系列:- 类型:时钟缓冲器/驱动器 PLL:是 主要目的:- 输入:- 输出:- 电路数:- 比率 - 输入:输出:- 差分 - 输入:输出:- 频率 - 最大:- 电源电压:3.3V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:28-SSOP（0.209"，5.30mm 宽） 供应商设备封装:28-SSOP 包装:带卷 (TR) 其它名称:93786AFT |
| ICS84327AMT | 制造商:ICS 制造商全称:ICS 功能描述:CRYSTAL-TO-3.3V LVPECL FREQUENCY SYNTHESIZER W/INTEGRATED FANOUT BUFFER |
| ICS84329 | 制造商:ICS 制造商全称:ICS 功能描述:700MHZ, LOW JITTER, CRYSTAL-TO-3.3V DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER |
| ICS84329-01 | 制造商:IDT 制造商全称:Integrated Device Technology 功能描述:700MHZ, LOW JITTER, CRYSTAL-TO-3.3V DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER |
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