8538BGI-26LF

8538BGI-26LF Datasheet

ICS8538I-26

Part	Datasheet
8538BGI-26LF	8538BGI-26LF (pdf)

Related Parts	Information
8538BGI-26LFT	8538BGI-26LFT

PDF Datasheet Preview
LOW SKEW, 1-TO-8, CRYSTAL OSCILLATOR/LVCMOSTO-3.3V, 2.5V LVPECL/LVCMOS FANOUT BUFFER ICS8538I-26 The ICS8538I-26 is a low skew, high performance 1-to-8 Crystal Oscillator/LVCMOS-to-3.3V, 2.5V HiPerClockS LVPECL/LVCMOS Fanout Buffer and a member of the HiPerClockS family of High Performance Clock Solutions from IDT. The ICS8538I-26 has select- able single ended clock or crystal inputs. The single ended clock input accepts LVCMOS or LVTTL input levels and translate them to 3.3V LVPECL levels. The output enable is internally synchronized to eliminate runt pulses on the outputs during asynchronous assertion/deassertion of the clock enable pin. Guaranteed output and part-to-part skew characteristics make the ICS8538I-26 ideal for those applications demanding well defined performance and repeatability. • Two differential 3.3V or 2.5V LVPECL outputs and six single-ended 3.3V or 2.5V LVCMOS/LVTTL outputs • Selectable LVCMOS/LVTTL CLK or crystal inputs • CLK can accept the following input levels LVCMOS, LVTTL • Maximum output frequency 266MHz • Output skew 60ps maximum , LVPECL outputs • Part-to-part skew 800ps maximum • Propagation delay 2.05ns maximum , LVPECL outputs • Additive phase jitter, RMS 0.19ps typical • Operating supply modes LVPECL outputs Core/Output 3.3V/3.3V 2.5V/2.5V LVCMOS outputs Core/Output 3.3V/3.3V 2.5V/2.5V • -40°C to 85°C ambient operating temperature • Available in lead-free RoHS 6 package BLOCK DIAGRAM CLK_EN Pullup CLK Pulldown D LE 0 25MHz XTAL_IN XTAL_OUT CLK_SEL Pullup LVPECL Q0 nQ0 Q1 nQ1 LVCMOS Q7 IDT / ICS 3.3V LVPECL/ LVCMOS FANOUT BUFFER PIN ASSIGNMENT CLK_EN 1 XTAL_IN 2 XTAL_OUT 3 VCC 4 CLK 5 CLK_SEL 6 VEE 7 Q0 8 nQ0 9 TABLE ORDERING INFORMATION Part/Order Number Marking Package Shipping Packaging Temperature 8538BGI-26LF 8538BGI26L 24 lead "Lead-Free" TSSOP tube -40°C to 85°C 8538BGI-26LFT 8538BGI26L 24 lead "Lead-Free" TSSOP 2500 tape & reel -40°C to 85°C NOTE Parts that are ordered with an "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, Incorporated IDT assumes no responsibility for either its use or for infringement of any patents or other rights of third parties, which would result from its use. No other circuits, patents, or licenses are implied. This product is intended for use in normal commercial and industrial applications. Any other applications such as those requiring high reliability or other extraordinary environmental requirements are not recommended without additional processing by IDT. IDT reserves the right to change any circuitry or specifications without notice. IDT does not authorize or warrant any IDT product for use in life support devices or critical medical instruments. IDT / ICS 3.3V LVPECL/ LVCMOS FANOUT BUFFER ICS8538I-26 LOW SKEW, 1-TO-8, CRYSTAL OSCILLATOR/LVCMOS-TO-3.3V LVPECL/LVCMOS FANOUT BUFFER T4A - T4B T6B T6C T7 T8 4 5 6 7 8 11 Description of Change Features section - LVPECL operating supply modes, added full for LVCMOS outputs, changed 3.3V/2.5V to full 2.5V mode. Pin Characteristics - updated table to accommodate 2.5V for CPD and ROUT and added specs. Power Supply Table - updated power supply tables to new supply mode. LVCMOS Table - updated table with new supply mode. Added 2.5V LVPECL DC Characteristics Table. Added 2.5V LVPECL AC Characteristics Table. Added 3.3V LVCMOS AC Characteristics Table. Changed LVCMOS AC Characteristics Table from 3.3V/2.5V to 2.5V/2.5V. Added RMS Phase Jitter Plot. Parameter Measurement Information Section - added RMS Phase JItter diagram. Recalucated junction temperature equation and updated Thermal Resistance table. Updated Thermal Resistance Table. Date 4/14/09 IDT / ICS 3.3V LVPECL/ LVCMOS FANOUT BUFFER ICS8538I-26 LOW SKEW, 1-TO-8, CRYSTAL OSCILLATOR/LVCMOS-TO-3.3V LVPECL/LVCMOS FANOUT BUFFER Innovate with IDT and accelerate your future networks. Contact: For Sales 800-345-7015 inside USA +408-284-8200 outside USA Fax 408-284-2775 For Tech Support +480-763-2056 Corporate Headquarters Integrated Device Technology, Inc. 6024 Silver Creek Valley Road San Jose, CA 95138 United States 800-345-7015 inside USA +408-284-8200 outside USA 2009 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice. IDT, the IDT logo, ICS and HiPerClockS 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. Printed in USA

PDF Datasheet Preview

LOW SKEW, 1-TO-8, CRYSTAL OSCILLATOR/LVCMOSTO-3.3V, 2.5V LVPECL/LVCMOS FANOUT BUFFER

ICS8538I-26

The ICS8538I-26 is a low skew, high performance
1-to-8 Crystal Oscillator/LVCMOS-to-3.3V, 2.5V

HiPerClockS LVPECL/LVCMOS Fanout Buffer and a member of
the HiPerClockS family of High Performance Clock

Solutions from IDT. The ICS8538I-26 has select-
able single ended clock or crystal inputs. The single ended clock
input accepts LVCMOS or LVTTL input levels and translate
them to 3.3V LVPECL levels. The output enable is internally
synchronized to eliminate runt pulses on the outputs during
asynchronous assertion/deassertion of the clock enable pin.

Guaranteed output and part-to-part skew characteristics make the ICS8538I-26 ideal for those applications demanding well defined performance and repeatability.
• Two differential 3.3V or 2.5V LVPECL outputs and six single-ended 3.3V or 2.5V LVCMOS/LVTTL outputs
• Selectable LVCMOS/LVTTL CLK or crystal inputs
• CLK can accept the following input levels LVCMOS, LVTTL
• Maximum output frequency 266MHz
• Output skew 60ps maximum , LVPECL outputs
• Part-to-part skew 800ps maximum
• Propagation delay 2.05ns maximum , LVPECL outputs
• Additive phase jitter, RMS 0.19ps typical
• Operating supply modes LVPECL outputs Core/Output 3.3V/3.3V 2.5V/2.5V

LVCMOS outputs Core/Output 3.3V/3.3V 2.5V/2.5V
• -40°C to 85°C ambient operating temperature
• Available in lead-free RoHS 6 package

BLOCK DIAGRAM

CLK_EN Pullup CLK Pulldown

D LE 0
25MHz XTAL_IN

XTAL_OUT

CLK_SEL Pullup

LVPECL Q0 nQ0 Q1 nQ1

LVCMOS Q7

IDT / ICS 3.3V LVPECL/ LVCMOS FANOUT BUFFER

PIN ASSIGNMENT

CLK_EN 1

XTAL_IN 2

XTAL_OUT 3

VCC 4

CLK 5

CLK_SEL 6 VEE 7 Q0 8 nQ0 9
TABLE ORDERING INFORMATION

Part/Order Number

Marking

Package

Shipping Packaging Temperature
8538BGI-26LF
8538BGI26L
24 lead "Lead-Free" TSSOP
tube
-40°C to 85°C
8538BGI-26LFT
8538BGI26L
24 lead "Lead-Free" TSSOP
2500 tape & reel -40°C to 85°C

NOTE Parts that are ordered with an "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, Incorporated IDT assumes no responsibility for either its use or for infringement of any patents or other rights of third parties, which would result from its use. No other circuits, patents, or licenses are implied. This product is intended for use in normal commercial and industrial applications. Any other applications such as those requiring high reliability or other extraordinary environmental requirements are not recommended without additional processing by IDT. IDT reserves the right to change any circuitry or specifications without notice. IDT does not authorize or warrant any IDT product for use in life support devices or critical medical instruments.

IDT / ICS 3.3V LVPECL/ LVCMOS FANOUT BUFFER

ICS8538I-26 LOW SKEW, 1-TO-8, CRYSTAL OSCILLATOR/LVCMOS-TO-3.3V LVPECL/LVCMOS FANOUT BUFFER

T4A - T4B

T6B T6C

T7 T8
4 5 6 7 8 11

Description of Change

Features section - LVPECL operating supply modes, added full for LVCMOS outputs, changed 3.3V/2.5V to full 2.5V mode. Pin Characteristics - updated table to accommodate 2.5V for CPD and ROUT and added specs. Power Supply Table - updated power supply tables to new supply mode. LVCMOS Table - updated table with new supply mode. Added 2.5V LVPECL DC Characteristics Table. Added 2.5V LVPECL AC Characteristics Table. Added 3.3V LVCMOS AC Characteristics Table. Changed LVCMOS AC Characteristics Table from 3.3V/2.5V to 2.5V/2.5V. Added RMS Phase Jitter Plot. Parameter Measurement Information Section - added RMS Phase JItter diagram. Recalucated junction temperature equation and updated Thermal Resistance table. Updated Thermal Resistance Table.

Date 4/14/09

IDT / ICS 3.3V LVPECL/ LVCMOS FANOUT BUFFER

ICS8538I-26 LOW SKEW, 1-TO-8, CRYSTAL OSCILLATOR/LVCMOS-TO-3.3V LVPECL/LVCMOS FANOUT BUFFER

Innovate with IDT and accelerate your future networks. Contact:

For Sales
800-345-7015 inside USA +408-284-8200 outside USA Fax 408-284-2775

For Tech Support
+480-763-2056

Corporate Headquarters

Integrated Device Technology, Inc. 6024 Silver Creek Valley Road San Jose, CA 95138 United States 800-345-7015 inside USA +408-284-8200 outside USA
2009 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice. IDT, the IDT logo, ICS and HiPerClockS 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. Printed in USA

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived 8538BGI-26LF Datasheet file may be downloaded here without warranties.

Datasheet ID: 8538BGI-26LF 637169