SY58605UMG Micrel Semiconductor, SY58605UMG Datasheet

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SY58605UMG

Manufacturer Part Number
SY58605UMG
Description
Manufacturer
Micrel Semiconductor
Datasheet

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General Description
The SY58605U is a 2.5V, high-speed, fully differential
LVDS buffer optimized to provide less than 10ps
jitter. The SY58605U can process clock signals as fast
as 2GHz or data patterns up to 3.2Gbps.
The differential input includes Micrel’s unique, 3-pin
input termination architecture that interfaces to LVPECL,
LVDS or CML differential signals, (AC- or DC-coupled)
as small as 100mV (200mV
or termination resistor networks in the signal path. For
AC-coupled input interface applications, an integrated
voltage reference (V
The output is 325mV LVDS, with rise/fall times
guaranteed to be less than 100ps.
The SY58605U operates from a 2.5V ±5% supply and is
guaranteed over the full industrial temperature range
(–40°C to +85°C). For applications that require CML or
LVPECL outputs, consider Micrel’s SY58603U and
SY58604U, buffers with 400mV and 800mV output
swings respectively. The SY58605U is part of Micrel’s
high-speed, Precision Edge
Datasheets and support documentation can be found on
Micrel’s web site at: www.micrel.com.
Functional Block Diagram
August 2007
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
REF-AC
) is provided to bias the V
®
pp
product line.
) without any level-shifting
pp
T
total
pin.
Features
• Precision 325mV LVDS buffer
• Guaranteed AC performance over temperature and
• Fail Safe Input
• Ultra-low jitter design
• High-speed LVDS output
• 2.5V ±5% power supply operation
• Industrial temperature range: –40°C to +85°C
• Available in 8-pin (2mm x 2mm) MLF
Applications
• All SONET clock and data distribution
• Fibre Channel clock and data distribution
• Gigabit Ethernet clock and data distribution
• Backplane distribution
Markets
• Storage
• ATE
• Test and measurement
• Enterprise networking equipment
• High-end servers
• Access
• Metro area network equipment
voltage:
– DC-to > 3.2Gbps throughput
– <300ps typical propagation delay (IN-to-Q)
– <100ps rise/fall times
– <1ps
– <10ps
– <1ps
– <10ps
Internal Termination and Fail Safe Input
3.2Gbps Precision, LVDS Buffer with
Prevents output from oscillating when input is
invalid
RMS
RMS
PP
PP
cycle-to-cycle jitter
total jitter
random jitter
deterministic jitter
SY58605U
hbwhelp@micrel.com
®
or (408) 955-1690
M9999-082907-B
package
Precision Edge
®

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SY58605UMG Summary of contents

Page 1

General Description The SY58605U is a 2.5V, high-speed, fully differential LVDS buffer optimized to provide less than 10ps jitter. The SY58605U can process clock signals as fast as 2GHz or data patterns up to 3.2Gbps. The differential input includes Micrel’s ...

Page 2

... Micrel, Inc. (1) Ordering Information Part Number Package SY58605UMG MLF-8 (2) SY58605UMGTR MLF-8 Notes: 1. Contact factory for die availability. Dice are guaranteed Tape and Reel. Pin Configuration Pin Description Pin Number Pin Name 1, 4 IN, / VREF-AC 5 GND, Exposed pad ...

Page 3

Micrel, Inc. Absolute Maximum Ratings Supply Voltage (V ) ............................... –0.5V to +4.0V CC Input Voltage (V ) ............................ –0. LVDS Output Current (I )..................................±10mA OUT Input Current Source or Sink Current on (IN, /IN) ...............±50mA Current ...

Page 4

Micrel, Inc. LVDS Output DC Electrical Characteristics V = +2.5V ±5 100Ω across the outputs Symbol Parameter V Output Voltage Swing OUT V Differential Output Voltage Swing DIFF_OUT V Output Common Mode Voltage OCM ∆ ...

Page 5

Micrel, Inc. AC Electrical Characteristics V = +2.5V ±5 100Ω across the outputs, Input Symbol Parameter f Maximum Frequency MAX t Propagation Delay PD t Part-to-Part Skew Skew t Data Random Jitter Jitter Deterministic Jitter ...

Page 6

Micrel, Inc. Functional Description Fail-Safe Input (FSI) The input includes a special failsafe circuit to sense the amplitude of the input signal and to latch the outputs when there is no input signal present, or when the amplitude of the ...

Page 7

Micrel, Inc. Typical Characteristics V = 2.5V, GND = 0V 100mV August 2007 = 100Ω across the outputs 25°C, unless otherwise stated. M9999-082907-B hbwhelp@micrel.com or (408) 955-1690 SY58605U ...

Page 8

Micrel, Inc. Functional Characteristics V = 2.5V, GND = 0V 250mV, Data Pattern stated. August 2007 23 - 100Ω across the outputs hbwhelp@micrel.com SY58605U = 25°C, unless otherwise A M9999-082907-B ...

Page 9

Micrel, Inc. Functional Characteristics V = 2.5V, GND = 0V 100mV August 2007 (continued) = 100Ω across the outputs 25°C, unless otherwise stated. A M9999-082907-B hbwhelp@micrel.com or (408) 955-1690 SY58605U ...

Page 10

Micrel, Inc. Input Stage Figure 3a. Single-Ended Swing Figure 3b. Differential Swing August 2007 Figure 2. Simplified Differential Input Buffer Figure 3c. LVDS Common Mode Measurement Figure 3d. LVDS Differential Measurement 10 SY58605U M9999-082907-B hbwhelp@micrel.com or (408) 955-1690 ...

Page 11

Micrel, Inc. Input Interface Applications Figure 4a. CML Interface (DC-Coupled) Option: May connect Figure 4d. LVPECL Interface (AC-Coupled) Related Product and Support Documents Part Number Function SY58603U 4.25Gbps Precision CML Buffer with Internal Termination and ...

Page 12

Micrel, Inc. 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. ...

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