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參數資料
| 型號： | ICS308RT |
| 廠商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分類： | 時鐘產生/分配 |
| 英文描述： | 200 MHz, OTHER CLOCK GENERATOR, PDSO20 |
| 封裝： | 0.150 INCH, SSOP-20 |
| 文件頁數： | 1/9頁 |
| 文件大小： | 179K |
| 代理商： | ICS308RT |
DATASHEET
SERIAL PROGRAMMABLE QUAD PLL VERSACLOCK SYNTHESIZER
ICS308
IDT / ICS SERIAL PROGRAMMABLE QUAD PLL VERSACLOCK SYNTHESIZER 1
ICS308
REV J 120507
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)
Available in Pb (lead) free package
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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相關代理商/技術參數 |
參數描述 |
|---|---|
| ICS-308-SGG | 制造商:Samtec Inc 功能描述:Conn DIP Socket SKT 8 POS 2.54mm Solder ST Thru-Hole Tube 制造商:Samtec Inc 功能描述:CONN DIP SCKT SKT 8 POS 2.54MM SLDR ST TH - Bulk |
| ICS-308-SGG-L | 制造商:Samtec Inc 功能描述:CONN DIP SCKT SKT 8 POS 2.54MM SLDR ST TH - Bulk |
| ICS-308-SGT | 制造商:Samtec Inc 功能描述:CONN DIP SCKT SKT 8 POS 2.54MM SLDR ST TH - Bulk |
| ICS-308-SGT-L | 制造商:Samtec Inc 功能描述:CONN DIP SCKT SKT 8 POS 2.54MM SLDR ST TH - Bulk |
| ICS-308-SST | 制造商:Samtec Inc 功能描述:CONN DIP SCKT SKT 8 POS 2.54MM SLDR ST TH - Bulk |
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