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SY89846UMGTR

Description
89846 SERIES, 2 LINE TO 1 LINE MULTIPLEXER, COMPLEMENTARY OUTPUT, QCC32
Categorylogic    logic   
File Size696KB,15 Pages
ManufacturerMicrochip
Websitehttps://www.microchip.com
Environmental Compliance
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SY89846UMGTR Overview

89846 SERIES, 2 LINE TO 1 LINE MULTIPLEXER, COMPLEMENTARY OUTPUT, QCC32

SY89846UMGTR Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
MakerMicrochip
Parts packaging codeDFN
package instructionHVQCCN, LCC32,.2SQ,20
Contacts32
Manufacturer packaging codeMLF
Reach Compliance Codecompli
Other featuresIT CAN ALSO OPERATE WITH 3.3 VOLT SUPPLY
series89846
Input adjustmentDIFFERENTIAL MUX
JESD-30 codeS-XQCC-N32
JESD-609 codee4
length5 mm
Logic integrated circuit typeLOW SKEW CLOCK DRIVER
Humidity sensitivity level2
Number of functions1
Number of entries2
Number of inverted outputs
Output times1
Number of terminals32
Actual output times10
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Output polarityCOMPLEMENTARY
Package body materialUNSPECIFIED
encapsulated codeHVQCCN
Encapsulate equivalent codeLCC32,.2SQ,20
Package shapeSQUARE
Package formCHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
method of packingTR
Peak Reflow Temperature (Celsius)260
Maximum supply current (ICC)75 mA
propagation delay (tpd)1.1 ns
Certification statusNot Qualified
Same Edge Skew-Max(tskwd)0.02 ns
Maximum seat height0.9 mm
Maximum supply voltage (Vsup)2.625 V
Minimum supply voltage (Vsup)2.375 V
Nominal supply voltage (Vsup)2.5 V
surface mountYES
Temperature levelINDUSTRIAL
Terminal surfaceNickel/Palladium/Gold (Ni/Pd/Au)
Terminal formNO LEAD
Terminal pitch0.5 mm
Terminal locationQUAD
Maximum time at peak reflow temperature40
width5 mm
minfmax1500 MHz
SY89846U
1.5GHz Precision, LVPECL 1:5 Fanout with 2:1
MUX and Fail Safe Input with Internal
Termination
General Description
The SY89846U is a 2.5/3.3V, 1:5 LVPECL fanout
buffer with a 2:1 differential input multiplexer (MUX).
A unique Fail-Safe Input (FSI) protection prevents
metastable output conditions when the selected
input clock fails to a DC voltage (voltage between
the pins of the differential input drops significantly
below 100mV).
The differential input includes Micrel’s unique, 3-pin
internal termination architecture that can interface to
any differential signal (AC- or DC-coupled) as small
as 100mV (200mV
PP
) without any level shifting or
termination resistor networks in the signal path. The
outputs are 800mV, LVPECL with fast rise/fall times
guaranteed to be less than 250ps.
The SY89846U operates from a 2.5V ±5% or 3.3V
±10% supply and is guaranteed over the full
industrial temperature range of –40°C to +85°C. The
SY89846U is part of Micrel’s high-speed, Precision
Edge
®
product line.
All support documentation can be found on Micrel’s
web site at:
www.micrel.com.
Precision Edge
®
Features
Selects between two inputs, and provides 5 precision
LVPECL copies
Fail-Safe Input
– Prevents outputs from oscillating when input is
invalid
Guaranteed AC performance over temperature and
supply voltage:
– DC-to >1.5GHz throughput
– < 900ps Propagation Delay (IN-to-Q)
– < 250ps Rise/Fall times
Ultra-low jitter design:
– <1ps
RMS
random jitter
– <1ps
RMS
cycle-to-cycle jitter
– <10ps
PP
total jitter (clock)
– <0.7ps
RMS
MUX crosstalk induced jitter
Unique, patented MUX input isolation design
minimizes adjacent channel crosstalk
Unique patented internal termination and VT pin
accepts DC- and AC-coupled inputs (CML, PECL,
LVDS)
Wide input voltage range. VCC to GND
2.5V ±5% or 3.3 ±10% supply voltage
-40°C to +85°C industrial temperature range
Available in 32-pin (5mm x 5mm) MLF
®
package
Functional Block Diagram
Applications
Fail-safe clock protection
SONET clock distribution
Backplane distribution
Markets
LAN/WAN
Enterprise servers
ATE
Test and measurement
Precision Edge is a registered trademark of Micrel, Inc.
MLF and
MicroLeadFrame
are registered trademarks of Amkor Technology
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
March 2007
M9999-031307-B
hbwhelp@micrel.com
or (408) 955-1690

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SY89846UMGTR SY89846U
Description 89846 SERIES, 2 LINE TO 1 LINE MULTIPLEXER, COMPLEMENTARY OUTPUT, QCC32 89846 SERIES, 2 LINE TO 1 LINE MULTIPLEXER, COMPLEMENTARY OUTPUT, QCC32
series 89846 89846
Number of functions 1 1
Number of terminals 32 32
Maximum operating temperature 85 °C 85 Cel
Minimum operating temperature -40 °C -40 Cel
Output polarity COMPLEMENTARY COMPLEMENTARY
surface mount YES Yes
Temperature level INDUSTRIAL INDUSTRIAL
Terminal form NO LEAD NO LEAD
Terminal location QUAD QUAD
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