SY89856UMG Micrel Inc, SY89856UMG Datasheet

IC 2GHZ 1:6 LVPECL FANOUT 32-MLF

SY89856UMG

Manufacturer Part Number
SY89856UMG
Description
IC 2GHZ 1:6 LVPECL FANOUT 32-MLF
Manufacturer
Micrel Inc
Series
Precision Edge®r
Type
Fanout Buffer (Distribution), Multiplexerr
Datasheet

Specifications of SY89856UMG

Number Of Circuits
1
Ratio - Input:output
2:6
Differential - Input:output
Yes/Yes
Input
CML, LVDS, PECL
Output
LVPECL
Frequency - Max
3GHz
Voltage - Supply
2.375 V ~ 3.6 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
32-MLF®, QFN
Frequency-max
3GHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
576-2102-5
SY89856UMG

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
SY89856UMG
Manufacturer:
MICREL
Quantity:
402
Company:
Part Number:
SY89856UMGTR
Quantity:
1 000
General Description
The SY89856U is a 2.5V/3.3V precision, high-speed,
1:6 fanout capable of handling clocks up to 2.0GHz. A
differential 2:1 MUX input is included for redundant
clock switchover applications.
The differential input includes Micrel’s unique, 3-pin
input termination architecture that allows the device to
interface to any differential signal (AC- or DC-coupled)
as small as 100mV (200mV
shifting or termination resistor networks in the signal
path. The outputs are LVPECL (100k, temperature
compensated), with extremely fast rise/fall times
guaranteed to be less than 200ps.
The SY89856U operates from a 2.5V ±5% supply or a
3.3V ±10% supply and is guaranteed over the full
industrial temperature range of –40°C to +85°C. The
SY89856U is part of Micrel’s high-speed, Precision
Edge
All support documentation can be found on Micrel’s
web site at: www.micrel.com.
Functional Block Diagram
Precision Edge is a registered trademark of Micrel, Inc.
August 2007
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
®
product line.
pp
) without any level
2GHz, Low-Power, 1:6 LVPECL Fanout Buffer
with 2:1 Input MUX and Internal Termination
Features
• 6 ultra-low skew copies of the selected input
• 2:1 MUX input included for clock switchover
• Low power: 225mW typical (2.5V)
• 2.5V to 3.3V supply voltage
• Unique input isolation design minimizes crosstalk
• Guaranteed AC performance over temperature and
• Ultra-low jitter design:
• Unique input termination and VT pin accepts DC-
• 100k LVPECL compatible output swing
• –40°C to +85°C industrial temperature range
• Available in 32-pin (5mm x 5mm) QFN package
Applications
• Redundant clock distribution
• All SONET/SDH clock/data distribution
• All Fibre Channel distribution
• All Gigabit Ethernet clock distribution
Markets
• LAN/WAN
• Enterprise servers
• ATE
• Test and measurement
applications
voltage:
– Clock frequency range: DC to >2.0GHz
– <400ps IN-to-OUT t
– <200ps t
– <30ps skew (output-to-output)
– <1ps
– <10ps
– <1ps
– <0.7ps
and AC-coupled inputs (CML, PECL, LVDS)
RMS
RMS
PP
RMS
total jitter (clock)
r
random jitter
cycle-to-cycle jitter
/t
SY89856U
f
crosstalk-induced jitter
times
hbwhelp@micrel.com
pd
Precision Edge
or (408) 955-1690
M9999-082907-C
®

Related parts for SY89856UMG

SY89856UMG Summary of contents

Page 1

... Functional Block Diagram Precision Edge is a registered trademark of Micrel, Inc. Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com August 2007 2GHz, Low-Power, 1:6 LVPECL Fanout Buffer ...

Page 2

... Ordering Information Package Part Number Type SY89856UMG QFN-32 (2) SY89856UMGTR QFN-32 Notes: 1. Contact factory for die availability. Dice are guaranteed Tape and Reel. Pin Configuration August 2007 Operating Package Marking Range Industrial SY89856U with Pb-Free bar-line indicator Industrial SY89856U with Pb-Free bar-line indicator = 25° ...

Page 3

Pin Description Pin Number Pin Name 1,4 IN0, /IN0 5, 8 IN1, /IN1 2, 6 VT0, VT1 31 SEL 10 NC 11, 16, 18, VCC 23, 25, 30 29, 28 Q0, /Q0, 27, 26 Q1, /Q1, 22, 21 Q2, /Q2, ...

Page 4

Absolute Maximum Ratings Supply Voltage (V ) ..........................–0.5V to +4.0V CC Input Voltage (V ) ..................................–0. LVPECL Output Current (I ) OUT Continuous ................................................. 50mA Surge........................................................ 100mA Termination Current Source or sink current ...

Page 5

LVPECL Outputs DC Electrical Characteristics V = 2.5V ±5% or 3.3V ±10 Symbol Parameter V Output HIGH Voltage OH V Output LOW Voltage OL V Output Voltage Swing OUT V Differential Output Voltage Swing DIFF-OUT LVTTL/CMOS DC Electrical ...

Page 6

AC Electrical Characteristics V = 2.5V ±5% or 3.3V ±10 Symbol Parameter f Maximum Operating Frequency MAX t Differential Propagation Delay pd (IN0 or IN1-to-Q) (SEL-to-Q) ∆t Tempco Differential Propagation Delay pd Temperature Coefficient t Output-to-Output SKEW Part-to-Part ...

Page 7

Typical Operating Characteristics V = 3.3V, GND = 0V, V ≥ 400mV Functional Characteristics V = 3.3V, GND = 0V, V ≥ 400mV August 2007 /t ≤ 300ps 25°C, unless otherwise stated. ...

Page 8

Singled-Ended and Differential Swings Figure 1a. Single-Ended Voltage Swing Timing Diagrams IN / SEL Q /Q August 2007 V V IN, OUT 800mV (typical) Figure 1b. Differential Voltage Swing t pd Input-to Select-to-Q t ...

Page 9

Input and Output Stages GND /IN Figure 2a. Simplified Differential Input Stage Input Interface Applications LVPECL / SY89856U 0.1µF GND REF-AC Note: For ...

Page 10

LVPECL Output Interface Applications LVPECL has a high input impedance and a very low output impedance (open emitter), and a small signal swing which results in low EMI. LVPECL is ideal for driving 50Ω and 100Ω-controlled R1 +3.3V 130 Z ...

Page 11

Package Information MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA TEL +1 (408) 944-0800 FAX +1 (408) 474-1000 WEB http:/www.micrel.com The information furnished by Micrel in this data sheet is believed to be accurate and reliable. However, no ...

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