参数资料
型号: ICS308RLFT
厂商: IDT, Integrated Device Technology Inc
文件页数: 1/9页
文件大小: 0K
描述: IC SRL PROGR QUAD PLL CLK 20QSOP
标准包装: 2,500
系列: VersaClock™
类型: 时钟/频率合成器
PLL: 带旁路
输入: 时钟,晶体
输出: LVCMOS
电路数: 1
比率 - 输入:输出: 1:9
差分 - 输入:输出: 无/无
频率 - 最大: 200MHz
除法器/乘法器: 无/是
电源电压: 3 V ~ 3.6 V
工作温度: 0°C ~ 70°C
安装类型: 表面贴装
封装/外壳: 20-SSOP(0.154",3.90mm 宽)
供应商设备封装: 20-QSOP
包装: 带卷 (TR)
其它名称: 308RLFT
DATASHEET
SERIAL PROGRAMMABLE QUAD PLL VERSACLOCK SYNTHESIZER
ICS308
IDT / ICS SERIAL PROGRAMMABLE QUAD PLL VERSACLOCK SYNTHESIZER 1
ICS308
REV L 051310
Description
The ICS308 is a versatile serially programmable, quad
PLL clock source. The ICS308 can generate any
frequency from 250 kHz to 200 MHz, and up to 6
different output frequencies simultaneously. The
outputs can be reprogrammed on the fly, and will lock to
a new frequency in 10 ms or less. Smooth transitions
(in which the clock duty cycle remains roughly 50%) are
guaranteed if the output divider is not changed.
The device includes a PDTS pin which tri-states the
output clocks and powers down the entire chip.
The ICS308 default for non-programmed start-up are
buffered reference clock outputs on all clock output
pins.
Features
Packaged in 20-pin SSOP (QSOP) – Pb-free, RoHS
compliant
Operating voltage of 3.3 V
Highly accurate frequency generation
M/N Multiplier PLL: M = 1..2048, N = 1..1024
Serially programmable: user determines the output
frequency via a 3-wire interface
Eliminates need for custom quartz oscillators
Input crystal frequency of 5 - 27 MHz
Optional programmable on-chip crystal capacitors
Output clock frequencies up to 200 MHz
Reference clock output
Power down tri-state mode
Very low jitter
Block Diagram
C rystal
O scillator
GN D
2
3
VDD
PDT S
PLL2
PLL3
Divide
Logic
and
Output
Enable
Control
SCLK
DATA
CLK1
CLK9
CLK8
CLK7
CLK6
CLK5
CLK4
CLK3
CLK2
PLL4
PLL1
X2
Cry stal or
cloc k input
E xternal capacitors are
required w ith a crystal input.
X 1/IC LK
STROBE
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ICS308RT 功能描述:IC SRL PROGR QUAD PLL CLK 20QSOP RoHS:否 类别:集成电路 (IC) >> 时钟/计时 - 时钟发生器,PLL,频率合成器 系列:VersaClock™ 产品变化通告:Product Discontinuation 04/May/2011 标准包装:96 系列:- 类型:时钟倍频器,零延迟缓冲器 PLL:带旁路 输入:LVTTL 输出:LVTTL 电路数:1 比率 - 输入:输出:1:8 差分 - 输入:输出:无/无 频率 - 最大:133.3MHz 除法器/乘法器:是/无 电源电压:3 V ~ 3.6 V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:16-TSSOP(0.173",4.40mm 宽) 供应商设备封装:16-TSSOP 包装:管件 其它名称:23S08-5HPGG
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