ICS650R-27ILFT IDT, Integrated Device Technology Inc, ICS650R-27ILFT Datasheet

IC CLOCK SYNTHESIZER 20-SSOP

ICS650R-27ILFT

Manufacturer Part Number
ICS650R-27ILFT
Description
IC CLOCK SYNTHESIZER 20-SSOP
Manufacturer
IDT, Integrated Device Technology Inc
Type
Clock/Frequency Synthesizerr
Datasheet

Specifications of ICS650R-27ILFT

Pll
Yes
Input
Clock, Crystal
Output
CMOS
Number Of Circuits
1
Ratio - Input:output
1:7
Differential - Input:output
No/No
Frequency - Max
133.33MHz
Divider/multiplier
Yes/No
Voltage - Supply
3 V ~ 3.6 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
20-SSOP
Frequency-max
133MHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
650R-27ILFT
800-1813-2
NETWORKING CLOCK SOURCE
Description
The ICS650-27 is a low cost, low jitter, high performance
clock synthesizer for networking applications. Using analog
Phase-Locked Loop (PLL) techniques, the device accepts a
12.5 MHz or 25 MHz clock or fundamental mode crystal
input to produce multiple output clocks for networking chips,
PCI devices, SDRAM, and ASICs. The ICS650-27 outputs
all have zero ppm synthesis error.
The ICS650-27 is pin compatible and functionally
equivalent to the ICS650-07. It is a performance
upgrade and is recommended for all new 3.3V designs.
See the MK74CB214, ICS551, and ICS552-01 for non-PLL
buffer devices which produce multiple low-skew copies of
these output clocks.
See the ICS570, ICS9112-16/17/18 for zero delay buffers
that can synchronize outputs and other needed clocks.
Block Diagram
IDT™ / ICS™ NETWORKING CLOCK SOURCE
25 or 12.5 MHz
cyrstal or clock
ACS1:0
BCS1:0
CCS
X2
X1/ICLK
2
2
Oscillator
Crystal
Buffer/
Clock
1
Features
and Control
Synthesis
Packaged in 20-pin (150 mil) SSOP (QSOP)
Pb (lead) free package, RoHS compliant
12.5 MHz or 25 MHz fundamental crystal or clock input
Six output clocks with selectable frequencies
SDRAM frequencies of 67, 83, 100, and 133 MHz
Buffered crystal reference output
Zero ppm synthesis error in all clocks
Ideal for PMC-Sierra’s ATM switch chips
Full CMOS output swing with 25 mA output drive
capability at TTL levels
Advanced, low-power, sub-micron CMOS process
Operating voltage of 3.3 V
Industrial temperature only
Circuitry
Clock
GND
VDD
2
2
/2
/2
OE (all outputs)
ICS650-27
DATASHEET
CLKA2
CLKB1
CLKA1
CLKB2
CLKC1
CLKC2
REFOUT
ICS650-27
REV F 051310

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ICS650R-27ILFT Summary of contents

Page 1

NETWORKING CLOCK SOURCE Description The ICS650- low cost, low jitter, high performance clock synthesizer for networking applications. Using analog Phase-Locked Loop (PLL) techniques, the device accepts a 12.5 MHz or 25 MHz clock or fundamental mode crystal input ...

Page 2

ICS650-27 NETWORKING CLOCK SOURCE Pin Assignment ASC0 X1/ICLK 3 18 VDD 4 17 ASC1 5 16 GND 6 15 CLKC1 7 14 CLKC2 8 13 CLKB2 9 12 CLKB1 10 11 20-pin (150 mil) SSOP ...

Page 3

ICS650-27 NETWORKING CLOCK SOURCE For a 25 MHz fundamental crystal or clock input, the following four tables apply: A Clocks Select Table (outputs in MHz) ASC1 ASC0 CLKA1 0 0 100 0 M Test 33.3333 ...

Page 4

ICS650-27 NETWORKING CLOCK SOURCE External Components The ICS650-27 requires a minimum number of external components for proper operation. Decoupling Capacitor Decoupling capacitors of 0.01µF must be connected between each VDD and GND (pins 4 and 6, pins 16 and 14), ...

Page 5

ICS650-27 NETWORKING CLOCK SOURCE DC Electrical Characteristics Unless stated otherwise, VDD = 3.3 V ±10%, Ambient Temperature -40 to +85 C Parameter Operating Voltage Input High Voltage Input Low Voltage Input High Voltage Input Low Voltage Input High Voltage Input ...

Page 6

ICS650-27 NETWORKING CLOCK SOURCE Package Outline and Package Dimensions Package dimensions are kept current with JEDEC Publication No INDEX AREA Ordering Information Part / Order Number Marking 650R-27ILF 650R-27ILF 650R-27ILFT 650R-27ILF "LF" suffix ...

Page 7

ICS650-27 NETWORKING CLOCK SOURCE Innovate with IDT and accelerate your future networks. Contact: www.IDT.com For Sales 800-345-7015 408-284-8200 Fax: 408-284-2775 Corporate Headquarters Integrated Device Technology, Inc. www.idt.com © 2006 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to ...

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