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| 型号： | ICS84329BV-01LFT |
| 厂商： | IDT, Integrated Device Technology Inc |
| 文件页数： | 21/21页 |
| 文件大小： | 0K |
| 描述： | IC SYNTHESIZER 700MHZ 28-PLCC |
| 标准包装： | 500 |
| 系列： | HiPerClockS™ |
| 类型： | 频率合成器 |
| 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： | 700MHz |
| 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： | 28-LCC（J 形引线） |
| 供应商设备封装： | 28-PLCC（11.5x11.5） |
| 包装： | 带卷 (TR) |
| 其它名称： | 84329BV-01LFT |
ICS84329B-01
700MHZ, LOW JITTER, CRYSTAL-TO-3.3V LVPECL FREQUENCY SYNTHESIZER
IDT / ICS LVPECL FREQUENCY SYNTHESIZER
9
ICS84329BM-01 REV. C AUGUST, 19, 2013
Crystal Input Interface
The ICS84329B-01 has been characterized for either series or
parallel mode operation. The ICS84329B-01 has a built-in crystal
oscillator circuit. This interface can accept either a series or parallel
crystal without additional components and generate frequencies
with accuracy suitable for most applications. Additional accuracy
can be achieved by adding two small capacitors C1 and C2 as
shown in Figure 3.
Figure 3. Crystal Input Interface
LVCMOS to 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 4. The XTAL_OUT pin can be left floating. The
input edge rate can be as slow as 10ns. For LVCMOS inputs, it is
recommended that the amplitude be reduced from full swing to half
swing in order to prevent signal interference with the power rail and
to reduce noise. 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
.
Figure 4. General Diagram for LVCMOS Driver to XTAL Input Interface
XTAL_IN
XTAL_OUT
X1
18pF Parallel Crystal
C1
18p
C2
22p
XTAL_IN
XTAL_OUT
Ro
Rs
Zo = Ro + Rs
50
Ω
0.1f
R1
R2
VCC
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ICS84329BV-01T | 制造商:Integrated Device Technology Inc 功能描述:IC SYNTHESIZER 700MHZ 28-PLCC |
| ICS84329BVLF | 功能描述:IC SYNTHESIZER 700MHZ 28-PLCC 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™ 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 |
| ICS84329BVLFT | 功能描述:IC SYNTHESIZER 700MHZ 28-PLCC 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™ 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 |
| ICS84329BVT | 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 |
| ICS84329BY | 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 |
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