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参数资料
| 型号： | ICS843051AGLFT |
| 厂商： | IDT, Integrated Device Technology Inc |
| 文件页数： | 17/17页 |
| 文件大小： | 0K |
| 描述： | IC CLOCK GENERATOR LVPECL 8TSSOP |
| 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： | 是 |
| 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： | 161.13MHz |
| 除法器/乘法器： | 是/无 |
| 电源电压： | 3.135 V ~ 3.465 V |
| 工作温度： | 0°C ~ 70°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： | 843051AGLFT |
ICS843051AG REVISION A OCTOBER 13, 2010
9
2010 Integrated Device Technology, Inc.
ICS843051 Data Sheet
FEMTOCLOCK CRYSTAL-TO-3.3V LVPECL CLOCK GENERATOR
Overdriving the XTAL Interface
The XTAL_IN input can accept a single-ended LVCMOS signal
through an AC coupling capacitor. A general interface diagram is
shown in Figure 3A. The XTAL_OUT pin can be left floating. The
maximum amplitude of the input signal should not exceed 2V and the
input edge rate can be as slow as 10ns. This configuration requires
that the output impedance of the driver (Ro) plus the series
resistance (Rs) equals the transmission line impedance. In addition,
matched termination at the crystal input will attenuate the signal in
half. This can be done in one of two ways. First, R1 and R2 in parallel
should equal the transmission line impedance. For most 50
applications, R1 and R2 can be 100
. This can also be
accomplished by removing R1 and making R2 50
. By overdriving
the crystal oscillator, the device will be functional, but note, the device
performance is guaranteed by using a quartz crystal.
Figure 3A. General Diagram for LVCMOS Driver to XTAL Input Interface
Figure 3B. General Diagram for LVPECL Driver to XTAL Input Interface
R2
100
R1
100
RS
43
Ro ~ 7 Ohm
Driv er_LVCMOS
Zo = 50 Ohm
C1
0.1uF
3.3V
Cry stal Input Interf ace
XTAL_IN
XTAL_OUT
Cry stal Input Interf ace
XTAL_IN
XTAL_OUT
R3
50
C1
0.1uF
R2
50
R1
50
Zo = 50 Ohm
LVPECL
Zo = 50 Ohm
VCC=3.3V
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ICS843051AGT | 制造商:ICS 制造商全称:ICS 功能描述:FEMTOCLOCKS CRYSTAL-TO-3.3V LVPECL CLOCK GENERATOR |
| ICS8430-61 | 制造商:ICS 制造商全称:ICS 功能描述:500MHZ, CRYSTAL-TO-3.3V DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER |
| ICS8430-62 | 制造商:IDT 制造商全称:Integrated Device Technology 功能描述:500MHz, Crystal-to-3.3V, 2.5V Differential LVPECL Frequency Synthesizer |
| ICS843071AGI | 制造商:ICS 制造商全称:ICS 功能描述:FEMTOCLOCKS⑩ CRYSTAL-TO- LVPECL CLOCK GENERATOR |
| ICS843071AGILF | 功能描述:IC CLOCK GENERATOR LVPECL 8TSSOP 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 |
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