ICS650GI-47LFT IDT, Integrated Device Technology Inc, ICS650GI-47LFT Datasheet

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ICS650GI-47LFT

Manufacturer Part Number
ICS650GI-47LFT
Description
IC CLK SYNTHESIZER 16-TSSOP
Manufacturer
IDT, Integrated Device Technology Inc
Type
Clock/Frequency Synthesizerr
Datasheet

Specifications of ICS650GI-47LFT

Pll
Yes
Input
Clock, Crystal
Output
CMOS
Number Of Circuits
1
Ratio - Input:output
1:1
Differential - Input:output
No/No
Frequency - Max
50MHz
Divider/multiplier
No/No
Voltage - Supply
3.135 V ~ 3.465 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
16-TSSOP
Frequency-max
50MHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
650GI-47LFT
SPREAD SPECTRUM CLOCK SYNTHESIZER
Description
The ICS650-47 is a spread spectrum clock synthesizer
intended for video projector applications. It generates an
EMI optimized 50 MHz clock signal through the use of
Spread Spectrum techniques from a 25 MHz crystal or
clock input. For the 50 MHz output, the modulation rate is
50 kHz.
Block Diagram
IDT™ / ICS™ SPREAD SPECTRUM CLOCK SYNTHESIZER
External capacitors are
required with a crystal
input.
25 MHz crystal
or clock input
X1/CLKIN
X2
SS_EN
FS3:0
Crystal
Control
OSC
Logic
1
Features
Packaged in 16-pin TSSOP (173 mil)
Supply voltages: VDD = 3.3 V, VDDO = 2.5 V
Peak-to-peak jitter: ±125 ps typ
Output duty cycle 45/55% (worst case)
Guarantees +85°C operational condition
25 MHz crystal or reference clock input
Zero (0) ppm frequency error on all output clocks
Advanced, low-power CMOS process
Industrial temperature range (0 to +85°C)
GND
2
VDD
Spectrum
PLL with
Spread
3
PRELIMINARY DATASHEET
PDTS
VDDO
50M
ICS650-47
ICS650-47
REV B 082305

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ICS650GI-47LFT Summary of contents

Page 1

SPREAD SPECTRUM CLOCK SYNTHESIZER Description The ICS650- spread spectrum clock synthesizer intended for video projector applications. It generates an EMI optimized 50 MHz clock signal through the use of Spread Spectrum techniques from a 25 MHz crystal or ...

Page 2

ICS650-47 SPREAD SPECTRUM CLOCK SYNTHESIZER Pin Assignment X1/CLKIN 1 FS0 2 FS1 3 SS_EN 4 VDD 5 GND 6 FS3 16-pin (173 mil) TSSOP IDT™ / ICS™ SPREAD SPECTRUM CLOCK SYNTHESIZER Spread Spectrum and Output Configuration Table ...

Page 3

ICS650-47 SPREAD SPECTRUM CLOCK SYNTHESIZER Pin Descriptions Pin Pin Name Number 1 X1/CLKIN 2 FS0 3 FS1 4 SS_EN 5 VDD 6 GND 7 FS3 50M 10 VDDO 11 GND 12 VDD 13 FS2 14 PDTS 15 ...

Page 4

ICS650-47 SPREAD SPECTRUM CLOCK SYNTHESIZER 1) The 0.01µF decoupling capacitors should be mounted on the component side of the board as close to the VDD pin as possible. No vias should be used between the decoupling capacitors and VDD pins. ...

Page 5

ICS650-47 SPREAD SPECTRUM CLOCK SYNTHESIZER DC Electrical Characteristics Unless stated otherwise, VDD = 3.3 V ±5%, VDDO = 2.5 V ±5% , Ambient Temperature 0 to +85°C Parameter Operating Supply Current Input High Voltage Input Low Voltage Input High Voltage ...

Page 6

ICS650-47 SPREAD SPECTRUM CLOCK SYNTHESIZER AC Electrical Characteristics Unless stated otherwise, VDD = 3.3 V ±5%, VDDO = 2.5 V ±5%, Ambient Temperature 0 to +85° C Parameter Input Frequency Spread Spectrum Modulation Frequency Duty Cycle Output Fall Time Output ...

Page 7

ICS650-47 SPREAD SPECTRUM CLOCK SYNTHESIZER Thermal Characteristics Parameter Thermal Resistance Junction to Ambient Thermal Resistance Junction to Case Marking Diagram 16 650GI47L ###### YYWW 1 Notes: 1. ###### is the lot number. 2. YYWW is the last two digits of ...

Page 8

ICS650-47 SPREAD SPECTRUM CLOCK SYNTHESIZER Timing Diagrams VDDs 0.01µF DUT GND Figure 1: Test and Measurement Setup t 3 Clock Output Figure 3: Rise and Fall Time Definitions 1. ...

Page 9

... Marking ICS650GI-47LF 650GI47L ICS650GI-47LFT 650GI47L Parts that are ordered with a "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 Circuit Systems (ICS) 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 10

ICS650-47 SPREAD SPECTRUM CLOCK SYNTHESIZER Revision History Rev. Originator Date Description of Change A P.Griffith 8/11/05 New device. IDT™ / ICS™ SPREAD SPECTRUM CLOCK SYNTHESIZER 10 CLOCK SYNTHESIZER ICS650-47 REV B 082305 ...

Page 11

ICS650-47 SPREAD SPECTRUM CLOCK SYNTHESIZER 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. 6024 Silver Creek Valley Road San Jose, CA 95138 United States 800 345 ...

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