sy58040u Micrel Semiconductor, sy58040u Datasheet

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sy58040u

Manufacturer Part Number
sy58040u
Description
Sy58040u Ultra Precision 4x4 Cml Switch With Internal I/o Termination
Manufacturer
Micrel Semiconductor
Datasheet

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M9999-112707
hbwhelp@micrel.com or (408) 955-1690
Micrel, Inc.
Precision Edge is a registered trademark of Micrel, Inc.
MLF and Micro LeadFrame are registered trademarks of Amkor Technology, Inc.
FEATURES
APPLICATIONS
Provides crosspoint switching between any input
pair to any output pair
Guaranteed AC performance over temperature and
voltage:
• DC to >5Gbps throughput
• <350ps propagation delay
• <60ps t
• <25ps skew (output-to-output)
Unique, patent-pending, channel-to-channel
isolation design provides superior crosstalk
performance
Ultra-low jitter design:
• <1ps
• <10ps
• <10ps
• <0.7ps
Unique, patent-pending, 50
extended CMVR, and VT pin accepts DC- and AC-
coupled differential inputs
400mV CML output swing
50
reflections
Power supply 2.5V
–40
Available in 44-pin (7mm × × × × × 7mm) MLF
Pb-Free green package
Data communication systems
All SONET/SDH data/clock applications
All Fibre Channel applications
All Gigabit Ethernet applications
°
C to +85
source terminated outputs minimize round-trip
RMS
PP
PP
RMS
r
/ t
deterministic jitter
total jitter (clock)
random jitter
°
f
crosstalk-induced jitter
C temperature range
times
±
5% or 3.3V
input termination
±
10%
®
package
ULTRA PRECISION 4× × × × × 4 CML
SWITCH WITH INTERNAL
I/O TERMINATION
1
crosspoint switch optimized for precision telecom and
enterprise server/storage distribution applications. The
SY58040U distributes clock frequencies from DC to 4GHz,
and data rates to 5Gbps guaranteed over temperature and
voltage.
3-pin input termination architecture that directly interfaces
to any differential signal (AC- or DC-coupled) as small as
100mV (200mV
resistor networks in the signal path. The outputs are 50Ω
source-terminated CML with extremely fast rise/fall times
guaranteed to be less than 60ps.
that significantly improves on channel-to-channel crosstalk
performance.
supply and is guaranteed over the full industrial temperature
range of –40°C to +85°C. The SY58040U is part of Micrel’s
high-speed, Precision Edge
Micrel’s web site at: www.micrel.com.
DESCRIPTION
The SY58040U is a low jitter, low skew, high-speed 4×4
The SY58040U differential input includes Micrel’s unique,
The SY58040U features a patent-pending isolation design
The SY58040U operates from a 2.5V ±5% or 3.3V ±10%
Datasheets and support documentation can be found on
pp
) without any level shifting or termination
®
product line.
Precision Edge
Rev.: F
Issue Date: November 2007
Precision Edge
SY58040U
Amendment: /0
SY58040U
®
®

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sy58040u Summary of contents

Page 1

... The SY58040U 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 SY58040U is part of Micrel’s ± 10% high-speed, Precision Edge Datasheets and support documentation can be found on ® ...

Page 2

... SIN0 (CMOS/TTL) SIN1 (CMOS/TTL) SOUT0 (CMOS/TTL) Control SOUT1 (CMOS/TTL) Logic CONF (CMOS/TTL) LOAD (CMOS/TTL) SOUT1 INPUT IN0 IN1 IN2 IN3 2 Q0 /Q0 Q1 /Q1 Q2 /Q2 Q3 /Q3 Output Select Address Table SOUT0 SY58040U OUTPUT ...

Page 3

... Load: Loads configuration into buffer, while Configuration Buffer holds existing switch configuration. 2. Configuration: Loads new configuration into the Configuration Buffer and updates switch configuration. Buffer Mode The SY58040U defaults to buffer mode (IN-to-Q) if the load and configuration control signals are floating. 23, 24, Q0, /Q0, Differential Outputs: These CML output pairs are the outputs of the device ...

Page 4

... See Figure 1b. 4 (2) ) ................. +2.375V to +3.60V CC ) ............. –40°C to +85°C A (4) (θ (ψ Min Typ 2.375 2.5 3.0 3.3 225 100 V –1 0.1 0.2 V –1.3 V –1 SY58040U Max Units 2.625 V 3.6 V 300 mA 60 Ω 120 Ω –0 1 1.28 V –1 uses 4-layer JA ...

Page 5

... The circuit is designed to meet the DC specifications shown in the above table after thermal equilibrium has been established. M9999-112707 hbwhelp@micrel.com or (408) 955-1690 (7) = 100Ω across each output pair, unless otherwise stated. L Condition See Figure 1a. See Figure 1b. (7) Condition SY58040U Min Typ Max Units V –0.040 V –0.010 325 400 ...

Page 6

... Note 12 Note 13 Note 14 Note 15 At full output swing, 20% to 80%. . MAX 23 –1 PRBS pattern. – T where T is the time between rising n n more than one output edge in 10 MAX 6 SY58040U Min Typ Max Units 5 Gbps Clock 3 GHz 150 225 350 ps 500 ps 225 fs/° ...

Page 7

... Within-Device Skew vs. Temperature (Referenced to Q0 6000 -40 - 100 TEMPERATURE (°C) 7 SY58040U Propagation Delay vs. Temperature 270 265 260 255 250 245 F = 200MHz 240 235 -40 - 100 TEMPERATURE (°C) ...

Page 8

... Micrel, Inc. FUNCTIONAL CHARACTERISTICS V = 3.3V, GND = 100mV 25°C, unless otherwise stated 200MHz Output TIME (200ps/div.) 5Gbps Output (Q – /Q) TIME (50ps/div.) M9999-112707 hbwhelp@micrel.com or (408) 955-1690 622MHz Output TIME (100ps/div.) 8 SY58040U ...

Page 9

... Valid refers to onfiguation being changed. All outputs with unchanged configuration remain valid. M9999-112707 hbwhelp@micrel.com or (408) 955-1690 , IN 400mV (Typ.) OUT (SIN-LOAD) H (LOAD-SIN/SOUT (LOAD-CONFIG (CONFIG-Q) Invalid DIFF_IN V 800mV (Typ.) DIFF_OUT Figure 1b. Differential Voltage Swing t S (CONFIG-LOAD) (1) (1) Valid SY58040U ...

Page 10

... M9999-112707 hbwhelp@micrel.com or (408) 955-1690 50Ω /Q Figure 2b. CML DC-Coupled V CC 50Ω 50Ω = 50Ω 50Ω bias per application 100mA GND Figure 2c. CML AC-Coupled (50 Ω Termination) 10 SY58040U V CC 50Ω = 50Ω 100Ω 50Ω 100mA GND Ω (100 Termination) ...

Page 11

... For 3.3V 100Ω. pd For 2.5V 50Ω. pd Figure 3b. LVPECL Interface (AC-Coupled LVDS /IN SY58040U GND REF-AC Figure 3e. LVDS Interface Data Sheet Link http://www.micrel.com/product-info/products/sy58040u.shtml www.amkor.com/products/notes_paper/MLF_AppNote.pdf www.micrel.com/product-info/products/solutions.shtml 11 SY58040U CML /IN SY58040U GND REF-AC Option: May connect Figure 3c. CML ...

Page 12

... PCB Thermal Consideration for 44-Pin MLF (Always solder, or equivalent, the exposed pad to the PCB (408) 474-1000 FAX Micrel for any damages resulting from such use or sale. © 2005 Micrel, Incorporated. 12 Package EP- Exposed Pad Die ® Package http://www.micrel.com WEB SY58040U ...

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