ICS650GI-44LFT IDT, Integrated Device Technology Inc, ICS650GI-44LFT Datasheet

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ICS650GI-44LFT

Manufacturer Part Number
ICS650GI-44LFT
Description
IC CLK SYNTHESIZER 16-TSSOP
Manufacturer
IDT, Integrated Device Technology Inc
Type
Clock/Frequency Synthesizerr
Datasheet

Specifications of ICS650GI-44LFT

Pll
Yes
Input
Clock, Crystal
Output
CMOS
Number Of Circuits
1
Ratio - Input:output
1:3
Differential - Input:output
No/No
Frequency - Max
50MHz
Divider/multiplier
No/No
Voltage - Supply
3.135 V ~ 3.465 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
16-TSSOP
Frequency-max
50MHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
650GI-44LFT
SPREAD SPECTRUM CLOCK SYNTHESIZER
Description
The ICS650-44 is a spread spectrum clock synthesizer
intended for video projector and digital TV applications. It
generates three copies of an EMI optimized 50 MHz clock
signal (EMI peak reduction of 7 to 14 dB on 3rd through
19th harmonics) through the use of Spread Spectrum
techniques from a 25 MHz crystal or clock input. 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
FS3:0
Control
Crystal
Logic
OSC
GND
1
Features
Spectrum
PLL with
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)
25 MHz crystal or reference clock input
Zero (0) ppm frequency error on all output clocks
Advanced, low-power CMOS process
Industrial temperature range (-40 to +85°C)
Pb (lead) free package
VDD
Spread
2
3
PDTS
VDDO
50M
50M
50M
ICS650-44
DATASHEET
ICS650-44
REV E 051310

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ICS650GI-44LFT Summary of contents

Page 1

SPREAD SPECTRUM CLOCK SYNTHESIZER Description The ICS650- spread spectrum clock synthesizer intended for video projector and digital TV applications. It generates three copies of an EMI optimized 50 MHz clock signal (EMI peak reduction ...

Page 2

ICS650-44 SPREAD SPECTRUM CLOCK SYNTHESIZER Pin Assignment X1/ CLKIN 1 FS0 2 FS1 3 50M 4 VDD 5 GND 6 7 FS3 50M 8 16-pin ( 173 mil) TSSOP IDT™ / ICS™ SPREAD SPECTRUM CLOCK SYNTHESIZER Spread Spectrum and Output ...

Page 3

ICS650-44 SPREAD SPECTRUM CLOCK SYNTHESIZER Pin Descriptions Pin Pin Name Number 1 X1/CLKIN 2 FS0 3 FS1 4 50M 5 VDD 6 GND 7 FS3 8 50M 9 50M 10 VDDO 11 GND 12 VDD 13 FS2 14 PDTS 15 ...

Page 4

ICS650-44 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

ICS650-44 SPREAD SPECTRUM CLOCK SYNTHESIZER DC Electrical Characteristics Unless stated otherwise, VDD = 3.3 V ±5%, VDDO = 2.5 V ±5% , Ambient Temperature -40 to +85 C Parameter Operating Supply Current Input High Voltage Input Low Voltage Input High ...

Page 6

ICS650-44 SPREAD SPECTRUM CLOCK SYNTHESIZER AC Electrical Characteristics Unless stated otherwise, VDD = 3.3 V ±5%, VDDO = 2.5 V ±5%, Ambient Temperature -40 to +85 C Parameter Input Frequency Spread Spectrum Modulation Frequency Duty Cycle Output Fall Time Output ...

Page 7

ICS650-44 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 ...

Page 8

ICS650-44 SPREAD SPECTRUM CLOCK SYNTHESIZER Thermal Characteristics Parameter Thermal Resistance Junction to Ambient Thermal Resistance Junction to Case Marking Diagram (Pb free) 16 650GI44L ###### YYWW 1 Notes: 1. ###### is the lot number. 2. YYWW is the last two ...

Page 9

ICS650-44 SPREAD SPECTRUM CLOCK SYNTHESIZER Package Outline and Package Dimensions Package dimensions are kept current with JEDEC Publication No INDEX AREA Ordering Information Part / Order Number Marking 650GI-44LF see page 7 650GI-44LFT ...

Page 10

ICS650-44 SPREAD SPECTRUM CLOCK SYNTHESIZER Revision History Rev. Originator Date Description of Change - P. Griffith 05/13/05 New proposal Griffith 05/24/05 Move from Advance (proposal) to Preliminary. Added ICS part number and LF Griffith 06/14/05 Added ...

Page 11

ICS650-44 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. www.idt.com © 2006 Integrated Device Technology, Inc. All rights reserved. Product specifications subject ...

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