- 您现在的位置：买卖IC网 > PDF目录65533 > ICS8431AM-01 200 MHz, OTHER CLOCK GENERATOR, PDSO28 PDF资料下载
参数资料
| 型号： | ICS8431AM-01 |
| 元件分类： | 时钟产生/分配 |
| 英文描述： | 200 MHz, OTHER CLOCK GENERATOR, PDSO28 |
| 封装： | SOIC-28 |
| 文件页数： | 1/7页 |
| 文件大小： | 96K |
| 代理商： | ICS8431AM-01 |
Integrated
Circuit
Systems, Inc.
8431-01
www.icst.com
SEPTEMBER 13, 2000
1
ICS8431-01
CLOCK SYNTHESIZER
PRELIMINARY
GENERAL DESCRIPTION
The ICS8431-01 is a general purpose clock
frequency synthesizer and a member of the
HiPerClockS family of High Performance
Clock Solutions from ICS. The ICS8431-01
consists of one independent low bandwidth PLL
timing channel. A 16.666MHz crystal is used as the input to
the on-chip oscillator. The M and N dividers are configured to
produce a fixed output frequency of 200MHz.
Programmable features of the ICS8431-01 support four op-
erational modes. The four modes are spread spectrum clock-
ing (SSC), non-spread spectrum clock and two test modes
and are controlled by the Power Up Latch. After power up
the latch is disabled and the initial programmed values can
only be overwritten by removing all power to the device.
In SSC mode the output clock is modulated in order to achieve
a reduction in EMI. In one of the PLL bypass test modes the
PLL is disconnected as the source to the differential output
allowing an external source to be connnected to the
TEST_I/O pin. This is useful for in-circuit testing and allows
the differential output to be driven at a lower frequency
throughout the system clock tree. In the other PLL bypass
mode the oscillator divider is used as the source to both the
M and N dividers. In this configuration the frequency at FOUT,
nFOUT equals the crystal frequency divide by 16 divided by
N. The frequency at TEST I/O equals the crystal frequency
divide by 16 divided by M. This is useful for characterizing
the oscillator and internal dividers.
BLOCK DIAGRAM
PIN ASSIGNMENT
FEATURES
Fully integrated PLL
Differential 3.3V LVPECL output
200MHz output frequency
Crystal oscillator interface
Spread Spectrum Clocking (SSC) fixed at 1/2% modulation
for environments requiring ultra low EMI
LVTTL / LVCMOS control inputs
PLL bypass modes supporting in-circuit testing and on-chip
functional block characterization
28 lead SOIC
XTAL1
XTAL2
SSC_CTL0
SSC_CTL1
PLL
FOUT
nFOUT
÷ 16
HiPerClockS
,&6
nc
SSC_CTL0
SSC_CTL1
GNDT
TEST_I/O
VDDT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
nc
VDDI
XTAL2
XTAL1
nc
VDDA
nc
VDDO
FOUT
nFOUT
GND
ICS8431-01
28-Lead SOIC
M Package
Top View
TEST_I/O
Configuration Logic
OSC
VCO
÷ N
PHASE
DETECTOR
÷ M
Power
Up
Latch
相关PDF资料 |
PDF描述 |
|---|---|
| ICS8432AY-101T | PLL BASED CLOCK DRIVER, 2 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP32 |
| ICS8432BY-21 | 500 MHz, OTHER CLOCK GENERATOR, PQFP32 |
| ICS8432BY-21T | 500 MHz, OTHER CLOCK GENERATOR, PQFP32 |
| ICS8432BY-21 | 500 MHz, OTHER CLOCK GENERATOR, PQFP32 |
| ICS8516DYT | LOW SKEW CLOCK DRIVER, 16 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP48 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ICS8431AM-21 | 制造商:ICS 制造商全称:ICS 功能描述:350MHZ, LOW JITTER, CRYSTAL OSCILLATOR-TO-3.3V LVPECL FREQUENCY SYNTHESIZER |
| ICS8431AM-21LF | 功能描述:IC SYNTHESIZER GP LVPECL 28-SOIC 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:Precision Edge® 类型:时钟/频率合成器 PLL:无 输入:CML，PECL 输出:CML 电路数:1 比率 - 输入:输出:2:1 差分 - 输入:输出:是/是 频率 - 最大:10.7GHz 除法器/乘法器:无/无 电源电压:2.375 V ~ 3.6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:16-VFQFN 裸露焊盘，16-MLF? 供应商设备封装:16-MLF?（3x3） 包装:带卷 (TR) 其它名称:SY58052UMGTRSY58052UMGTR-ND |
| ICS8431AM-21LFT | 功能描述:IC SYNTHESIZER 350MHZ 28-SOIC 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 |
| ICS8431AM-21T | 制造商:ICS 制造商全称:ICS 功能描述:350MHZ, LOW JITTER, CRYSTAL OSCILLATOR-TO-3.3V LVPECL FREQUENCY SYNTHESIZER |
| ICS8431AMI-21 | 制造商:ICS 制造商全称:ICS 功能描述:350MHZ, LOW JITTER, CRYSTAL OSCILLATOR-TO-3.3V LVPECL FREQUENCY SYNTHESIZER |
发布紧急采购，3分钟左右您将得到回复。