650G-36LF IDT, 650G-36LF Datasheet
![no-image](/images/no-image-200.jpg)
650G-36LF
Manufacturer Part Number
650G-36LF
Description
Clock Drivers & Distribution SYSTEM PERIPHERAL CLOCK SOURCE
Manufacturer
IDT
Datasheet
1.650G-36LF.pdf
(8 pages)
Specifications of 650G-36LF
Rohs
yes
Part # Aliases
ICS650G-36LF
NETWORKING AND PCI CLOCK SOURCE
Description
The ICS650-36 is a low cost frequency generator designed
to support networking and PCI applications. Using
analog/digital Phase Locked-Loop (PLL) techniques, the
device uses a standard fundamental mode, inexpensive
crystal input of 25 MHz to produce four output clocks
supporting LAN, PCI, and 100M SDRAM functions.
The device also has a power down feature that tri-states the
clock outputs and turns off the PLL when the PDTS pin is
taken low.
Block Diagram
IDT™ / ICS™ NETWORKING AND PCI CLOCK SOURCE
25 MHz
crystal
input
S2:0
X1/ICLK
External capacitors
may be required.
X2
3
Oscillator/
Crystal
Buffer
Clock
Control
Select/
Circuit
1
GND
VDD
Features
•
•
•
•
•
•
•
•
•
•
PLL1
PLL2
PLL3
Packaged in 16-pin TSSOP
Pb (lead) free package
Replaces multiple crystals and oscillators
Input crystal or clock frequency of 25 MHz
Fixed reference output frequency of 25 MHz
Selectable output frequencies of 33.3, 33.333, 50,
66.666, 100, and 125 MHz
Duty cycle of 40/60
Operating voltage of 3.3 V
Advanced, low-power CMOS process
Industrial and commercial temperature ranges
3
3
PDTS
(all outputs and PLLs)
CLK1
CLK2
CLK3
REF
ICS650-36
DATASHEET
ICS650-36
REV F 051310