650GI-36LFT IDT, 650GI-36LFT Datasheet

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650GI-36LFT

Manufacturer Part Number
650GI-36LFT
Description
Clock Drivers & Distribution SYSTEM PERIPHERAL CLOCK SOURCE
Manufacturer
IDT
Datasheet

Specifications of 650GI-36LFT

Rohs
yes
Part # Aliases
ICS650GI-36LFT
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

Related parts for 650GI-36LFT

650GI-36LFT Summary of contents

Page 1

... Block Diagram S2:0 X1/ICLK 25 MHz crystal input X2 External capacitors may be required. IDT™ / ICS™ NETWORKING AND PCI CLOCK SOURCE Features • Packaged in 16-pin TSSOP • Pb (lead) free package • Replaces multiple crystals and oscillators • Input crystal or clock frequency of 25 MHz • ...

Page 2

... Name GND 4 CLK3 5 PDTS CLK2 8 VDD GND 11 CLK1 12 VDD 13 S0 IDT™ / ICS™ NETWORKING AND PCI CLOCK SOURCE CLK Output Selection Table S2 16 VDD 0 15 GND 0 14 REF VDD CLK1 1 10 GND Note: All frequencies are in MHz ...

Page 3

... X1 and X2 to ground. The value (in pF) of these crystal caps should equal (C pF)*2. In this equation crystal load capacitance in pF. L IDT™ / ICS™ NETWORKING AND PCI CLOCK SOURCE Pin Pin Description Type Output Reference 25 MHz clock output. Weak internal pull-down when tri-state ...

Page 4

... Stresses above the ratings listed below can cause permanent damage to the ICS650-36. These ratings, which are standard values for IDT commercially rated parts, are stress ratings only. Functional operation of the device at these or any other conditions above those indicated in the operational sections of the specifications is not implied. ...

Page 5

... Absolute Clock Period Jitter Clock Jitter, Cycle-to-Cycle Clock Jitter, Long Term Frequency Synthesis Error Output Enable Time Output Disable Time Note 1: Measured with load. IDT™ / ICS™ NETWORKING AND PCI CLOCK SOURCE Symbol Conditions VDD IDD No load, PDTS=1 IDDPD ...

Page 6

... Bottom marking: (origin). Origin = country of origin if not USA. IDT™ / ICS™ NETWORKING AND PCI CLOCK SOURCE Symbol Conditions Still air JA 1 m/s air flow JA 3 m/s air flow JA JC (ICS650GI-36LF CLOCK SYNTHESIZER Min. Typ. Max. Units 78 C/W 70 C/W 68 C 650GI36L ###### YYWW 1 8 ICS650-36 REV F 051310 ...

Page 7

... Pb-Free configuration and are RoHS compliant. While the information presented herein has been checked for both accuracy and reliability, Integrated Device Technology (IDT) assumes no responsibility for either its use or for the infringement of any patents or other rights of third parties, which would result from its use. No other circuits, patents, or licenses are implied ...

Page 8

... Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice. IDT and the IDT logo are trademarks of Integrated Device Technology, Inc. Accelerated Thinking is a service mark of Integrated Device Technology, Inc. All other brands, product names and marks are or may be trademarks or registered trademarks used to identify products or services of their respective owners ...

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