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| 型号： | ICS87974AYLFT |
| 元件分类： | 时钟及定时 |
| 英文描述： | PLL BASED CLOCK DRIVER, 15 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP52 |
| 封装： | 10 X 10 MM, 1.40 MM HEIGHT, MS-026, LQFP-52 |
| 文件页数： | 1/12页 |
| 文件大小： | 123K |
| 代理商： | ICS87974AYLFT |
87974AY
www.icst.com/products/hiperclocks.html
REV. B FEBRUARY 13, 2002
1
Integrated
Circuit
Systems, Inc.
ICS87974
LOW SKEW, 1-TO-15,
LVCMOS CLOCK GENERATOR
PRELIMINARY
GENERAL DESCRIPTION
The ICS87974 is a low skew, low jitter 1-to-15
LVCMOS clock generator/zero delay buffer and is
a member of the HiPerClockS family of high per-
formance clock solutions from ICS. The device has
a fully integrated PLL and three banks whose di-
vider ratios can be independently controlled, providing output
frequency relationships of 1:1, 2:1, 3:1, 3:2, 3:2:1. In addition,
the external feedback connection provides for a wide selection
of output-to-input frequency ratios. The CLK0 and CLK1 pins
allow for redundant clocking on the input and dynamically switch-
ing the PLL between two clock sources. The ICS87974 is pin
for pin compatible with the MPC974.
Guaranteed low jitter and output skew characteristics make the
ICS87974 ideal for those applications demanding well defined
performance and repeatability.
FEATURES
Fully integrated PLL
15 single ended 3.3V LVCMOS outputs
Selectable CLK0 or CLK1 inputs for
redundant clock applications
Maximum output frequency: 125MHz
VCO range: 200MHz - 700MHz
External feedback for ”zero delay” clock regeneration
Cycle-to-cycle jitter: ±100ps (typical)
Output skew: 350ps (maximum)
Bank skew: 50ps (typical)
PLL reference zero delay: -250ps to 100ps
3.3V operating supply
Pin compatible with the MPC974
0°C to 70°C ambient operating temperature
Industrial temperature information available upon request
HiPerClockS
,&6
PIN ASSIGNMENT
V
DDOA
QA0
GND
QA1
V
DDOA
QA2
FB_SEL1
GND
QA3
V
DDOA
QA4
GND
FB_SEL0
GND
nMR
CLK_EN
SELB
SELC
PLL_SEL
SELA
CLK_SEL
CLK0
CLK1
nc
VDD
VDDA
1
2
3
4
5
6
7
8
9
10
11
12
13
14 15 16 17 18 19 20 21 22 23 24 25 26
39
38
37
36
35
34
33
32
31
30
29
28
27
52 51 50 49 48 47 46 45 44 43 42 41 40
GND
QB1
VDDOB
QB2
GND
QB3
VDDOB
QB4
FB_IN
GND
QFB
VDDOFB
nc
QB0
V
DDOB
nc
GND
QC3
V
DDOC
QC2
GND
QC1
V
DDOC
QC0
GND
VCO_SEL
ICS87974
52-Lead LQFP
10mm x 10mm x 1.4mm package body
Y package
Top View
The Preliminary Information presented herein represents a product in prototyping or pre-production. The noted characteristics are based on initial
product characterization. Integrated Circuit Systems, Incorporated (ICS) reserves the right to change any circuitry or specifications without notice.
相关PDF资料 |
PDF描述 |
|---|---|
| ICS87974AYLF | PLL BASED CLOCK DRIVER, 15 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP52 |
| ICS87974BYI | 87974 SERIES, PLL BASED CLOCK DRIVER, 14 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP52 |
| ICS87974CYILFT | 87974 SERIES, PLL BASED CLOCK DRIVER, 15 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), QFP52 |
| ICS87974CYIT | 87974 SERIES, PLL BASED CLOCK DRIVER, 15 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), QFP52 |
| ICS87974CYILF | 87974 SERIES, PLL BASED CLOCK DRIVER, 15 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), QFP52 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ICS87974CYILF | 功能描述:IC CLK GEN LVCMOS/LVTTL 52-LQFP 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 |
| ICS87974CYILFT | 功能描述:IC CLOCK GEN 1-15 PLL 52-LQFP 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 |
| ICS879893AYILF | 功能描述:IC CLK GEN LVCMOS/LVTTL 48-LQFP 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 |
| ICS879893AYILFT | 功能描述:IC CLK GEN LVCMOS/LVTTL 48-LQFP 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 |
| ICS87993AYILF | 功能描述:IC PLL CLK DRIVER 1-5 32-LQFP 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 |
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