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參數(shù)資料
| 型號： | ICS376R-XX-LF |
| 廠商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分類： | 時鐘產(chǎn)生/分配 |
| 英文描述： | 200 MHz, OTHER CLOCK GENERATOR, PDSO20 |
| 封裝： | 0.150 INCH, QSOP-20 |
| 文件頁數(shù)： | 1/5頁 |
| 文件大?。?/td> | 69K |
| 代理商： | ICS376R-XX-LF |
MDS 376 C
1
Revision 051001
Integrated Circuit Systems, Inc. 525 Race Street,San Jose,CA,95126 (408) 295-9800 tel www.icst.com
ICS376
Quad PLL with VCXO Quick Turn Clock Synthesizer
Packaged in 20 pin SSOP (QSOP)
Quick turn frequency programming allows
samples as quickly as one day
Two banks, up to 4 outputs each, can be low-skew
Can include 8 selectable output frequencies
Up to 4 reference outputs
Replaces a VCXO plus multiple crystals and
oscillators
Output frequencies up to 200 MHz at 3.3 V
Input crystal frequency of 13 - 27 MHz
Duty cycle of 45/55
Operating voltage of 3.3 V
Advanced, low power CMOS process
The ICS376 QTClock generates up to 8 high quality, high
frequency clock outputs. It is designed to replace a VCXO,
crystals, and crystal oscillators in most electronic systems.
The ICS376 contains a One-Time Programmable (OTP) ROM,
factory programmed with PLL divider values to output a
broad range of frequencies (up to 200 MHz). Quick Turn
factory programming allows customer sample requests to be
shipped in 1-3 days. Programming features include a
selectable frequency table and two banks of up to 4 low-
skew outputs.
Using ICS’ patented VCXO and Phase-Locked-Loop (PLL)
architecture, the device runs from a low-cost pullable
crystal. It can replace a VCXO and multiple crystals and
oscillators, saving board space and cost.
Block Diagram
Description
Features
13-27 MHz
Pullable
Crystal
OTP
ROM
with PLL
Divider
Values
PLL B
PLL C
PLL D
Voltage
Controlled
Crystal
Oscillator
Divide
Logic
and
Output
Control
CLK1
CLK2
CLK3
CLK4
CLK5
CLK6
CLK7
CLK8
X1
X2
External capacitors may be required.
S2:S0
3
PLL A
PDTS
Vin
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