650R-14LF IDT, 650R-14LF Datasheet

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650R-14LF

Manufacturer Part Number
650R-14LF
Description
Clock Drivers & Distribution SYSTEM PERIPHERAL CLOCK SOURCE
Manufacturer
IDT
Datasheet

Specifications of 650R-14LF

Rohs
yes
Part # Aliases
ICS650R-14LF
NETWORKING SYSTEM CLOCK
Description
The ICS650-14 is a low-cost, low-jitter, high-performance
clock synthesizer customized for networking systems
applications. Using analog/digital Phase-Locked Loop (PLL)
techniques, the device accepts a 25 MHz clock or
fundamental mode crystal input to produce multiple output
clocks of one fixed 25 MHz, a four (plus one) frequency
selectable bank, and two frequency selectable clocks. All
output clocks are frequency locked together. All of the
ICS650-14 outputs have zero ppm synthesis error.
Block Diagram
IDT™ / ICS™ NETWORKING SYSTEM CLOCK
C rystal or C lock
2 5 M H z
O p tional crystal capacitors are show n and m a y be
re q u ired fo r tuning of in itia l a ccura cy (determ ined
o n c e p e r b o a rd )
S E L B 0 :1
S E L C
S E L A 0 :1
X 1 /IC L K
X 2
2
2
O scillator
C rysta l
C rysta l
B u ffe r/
G N D
V D D
2
2
1
S ynth e sis an d
Features
C ircu itry
C o n tro l
Packaged in 20-pin (150 mil) SSOP (QSOP)
25 MHz fundamental crystal clock or clock input
One fixed output clock of 25 MHz
One bank of four frequency selectable output clocks
Three frequency selectable clocks outputs
Zero ppm synthesis error in all clocks
Ideal for networking systems
Full CMOS output swing
Advanced, low-power sub-micron CMOS process
Operating voltage of 3.3 V or 5 V
Industrial temperature range available
Pb-free, RoHS compliant package
C lo ck
O E (a ll o u tp u ts)
4
C L K C
C L K A 1 :4
2 5 M H z
C L K A 5
C L K B
ICS650-14
DATASHEET
ICS650-14
REV H 051310

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650R-14LF Summary of contents

Page 1

... tional crystal capacitors are show n and ired fo r tuning of in itia l a ccura cy (determ ined IDT™ / ICS™ NETWORKING SYSTEM CLOCK Features • Packaged in 20-pin (150 mil) SSOP (QSOP) • ...

Page 2

... X1/ICLK XI 4 VDD P 5 SELB1 I(Pu) 6 GND P 7 CLKB O 8 CLKC O 9 CLKA5 O 10 25M I(Pu) 12 CLKA1 O IDT™ / ICS™ NETWORKING SYSTEM CLOCK Table 1 SELA1 20 SELC 19 SELA0 18 CLKA2 17 CLKA3 16 VDD M 15 SELA1 M 14 GND M 13 CLKA4 12 CLKA1 11 OE Table 3 CLKB 30 ...

Page 3

... The nominal impedance of the clock output IDT™ / ICS™ NETWORKING SYSTEM CLOCK Pin Description Selectable clock output. See table 1. Connect to ground. ...

Page 4

... Stresses above the ratings listed below can cause permanent damage to the ICS650-14. 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

... IDT™ / ICS™ NETWORKING SYSTEM CLOCK Symbol Conditions t 0 2 VDD/2 All clocks CLKB = 27M CLKC = 62.5M Other Clocks Marking Diagram CLOCK SYNTHESIZER Min. Typ. Max. Units 25 MHz 1 ppm ±250 ps ±300 ps ±350 ps (ICS650R-14LF 650R-14LF ###### YYWW 1 10 ICS650-14 REV H 051310 ...

Page 6

... Part / Order Number Marking 650R-14LF see page 5 650R-14LFT 650R-14ILF 650R-14ILFT "LF" suffix to the part number are the 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 ...

Page 7

... 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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