sy58029u Micrel Semiconductor, sy58029u Datasheet

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sy58029u

Manufacturer Part Number
sy58029u
Description
Sy58029u Ultra Precision Differential Lvpecl 4 1 Mux With 1 2 Fanout And Internal Termination
Manufacturer
Micrel Semiconductor
Datasheet

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Micrel, Inc.
Precision Edge is a registered trademark of Micrel, Inc.
MicroLeadFrame and MLF are registered trademarks of Amkor Technology, Inc.
M9999-082707
hbwhelp@micrel.com or (408) 955-1690
FEATURES
APPLICATIONS
TYPICAL PERFORMANCE
Selects 1 of 4 differential inputs
Provides two copies of the selected input
Guaranteed AC performance over temperature and
voltage:
• DC-to-> 5Gbps data rate throughput
• < 390ps IN-to-Out t
• < 110ps t
Ultra low-jitter design:
• < 10ps
• < 1ps
• < 10ps
• < 0.7ps
Unique patended input design minimizes crosstalk
Accepts an input signal as low as 100mV
Unique patented input termination and V
accepts DC- and AC-coupled inputs (CML, LVPECL,
LVDS)
800mV 100K LVPECL output swing
Power supply 2.5V ±5% or 3.3V ±10%
–40°C to +85°C temperature range
Available in 32-pin (5mm ∞ ∞ ∞ ∞ ∞ 5mm) MLF
Redundant clock and/or distribution
All SONET/SDH clock/data distribution
Loopback
All Fibre Channel distribution
All Gigabit Ethernet clock and/or data distribution
RMS
PP
PP
RMS
r
deterministic jitter
total jitter (clock)
random jitter
/ t
crosstalk-induced jitter
f
times
.5Gbps Output (
pd
IME (100ps/div.)
3
Ð1 PRBS)
®
ULTRA PRECISION DIFFERENTIAL
LVPECL 4:1 MUX with 1:2 FANOUT
and INTERNAL TERMINATION
package
T
pin
1
differential multiplexer with 100k LVPECL (800mV)
compatible outputs, capable of handling clocks up to 4GHz
and data streams up to 5Gbps. In addition, a 1:2 fanout
buffer provides two copies of the selected inputs.
termination architecture that allows customers to interface
to any differential signal (AC- or DC-coupled) as small as
100mV without any level shifting or termination resistor
networks in the signal path. The result is a clean, stub-free,
low-jitter interface solution. The outputs are 800mV LVPECL,
(100k temperature compensated) with extremely fast rise/
fall times guaranteed to be less than 110ps.
3.3V ±10% supply and is guaranteed over the full industrial
temperature range of –40°C to +85°C. For applications that
require CML outputs, consider the SY58028U. For 400mV
LVPECL outputs, consider the SY58030U. The SY58029U
is part of Micrel’s high-speed, Precision Edge
site at www.micrel.com.
DESCRIPTION
FUNCTIONAL BLOCK DIAGRAM
The SY58029U is a 2.5V/3.3V precision, high-speed, 4:1
The differential input includes Micrel’s unique, 3-pin input
The SY58029U operates from a 2.5V ±5% supply or a
All support documentation can be found on Micrel’s web
V
V
V
V
REF-AC0
REF-AC1
REF-AC2
REF-AC3
/IN0
/IN1
/IN2
/IN3
IN0
IN1
IN2
IN3
V
V
V
V
T0
T1
T2
T3
50Ω
50Ω
50Ω
50Ω
50Ω
50Ω
50Ω
50Ω
SEL0 (CMOS/TTL)
SEL1 (CMOS/TTL)
0
1
2
3
MUX
MUX
4:1
Precision Edge
Rev.: D
Issue Date: August 2007
Precision Edge
Precision Edge
SY58029U
Fanout
®
1:2
product line.
Amendment: /0
SY58029U
/Q0
/Q1
Q0
Q1
®
®
®

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sy58029u Summary of contents

Page 1

... T fall times guaranteed to be less than 110ps. The SY58029U 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. For applications that require CML outputs, consider the SY58028U. For 400mV LVPECL outputs, consider the SY58030U. The SY58029U is part of Micrel’ ...

Page 2

... Maximum sink/source current is 0.5mA. 2 Precision Edge Operating Package Range Marking Industrial SY58029U Industrial SY58029U Industrial SY58029U with Pb-Free bar-line indicator Industrial SY58029U with Pb-Free bar-line indicator = 25°C, DC electricals only. A pin through 50ý. Note that these T and V pins may also be left floating. T REF-AC /2. See “ ...

Page 3

... Precision Edge (2) ) ............... +2.375V to +2.625V CC ) .............. –40°C to +85° Min Typ 2.375 2.5 3.0 3.3 110 CC 80 100 –1 0.1 0.2 V –1.3 V –1 ® SY58029U Max Units 2.625 V 3.6 V 140 mA 120 ý 60 ý –0 1 1.28 V –1 uses 4-layer JB ...

Page 4

... V –2V across each output pair, unless otherwise stated Condition See Figure 1a. See Figure 1b. (7) Condition SEL0, SEL1 SEL0, SEL1 4 Precision Edge SY58029U Min Typ Max Units V –1.145 V –0.895 –1.945 V – ...

Page 5

... T is the time between rising edges of the output n–1 12 output edges will deviate by more than the V , DIFF_IN V 1.6V (Typ.) DIFF_OUT Figure 1b. Differential Voltage Swing ® Precision Edge SY58029U Max Units Gbps GHz 390 ps 500 ps fs/° 100 ...

Page 6

... Figure 2b. SEL-to-Q Timing Diagram SEL1 = LOW; IN0, /IN1 = LOW; or: SEL1 = HIGH; IN2, /IN3 = LOW; SEL0 = LOW; IN0, /IN2 = LOW; or: SEL0 = HIGH; IN1, /IN3 = LOW; 6 Precision Edge SY58029U OUT V OUT /IN0, IN1 = HIGH /IN2, IN3 = HIGH /IN0, IN2 = HIGH /IN1, IN3 = HIGH ® ...

Page 7

... 200MHz Output TIME (600ps/div.) 2.5GHz Output TIME (50ps/div.) 3.2Gbps Output (2 TIME (100ps/div.) M9999-082707 hbwhelp@micrel.com or (408) 955-1690 23 –1 PRBS) 7 Precision Edge SY58029U 1.25GHz Output TIME (100ps/div.) 23 1.25Gbps Output (2 —1 PRBS) TIME (200ps/div.) 23 5Gbps Output (2 —1 PRBS) TIME (50ps/div.) ® ...

Page 8

... TEMPERATURE (°C) M9999-082707 hbwhelp@micrel.com or (408) 955-1690 Output-to-Output Skew vs. Temperature 1.4 1.2 1 0.8 0.6 0.4 0.2 0 -40 - 100 TEMPERATURE (°C) Output Amplitude vs. Frequency 800 700 600 500 400 300 200 100 FREQUENCY (GHz) 8 ® Precision Edge SY58029U ...

Page 9

... 0.01µF Figure 4b. CML Interface (AC-coupled LVDS /IN SY58029U GND NC V REF- Figure 4e. LVDS Interface 9 ® Precision Edge SY58029U LVPECL /IN SY58029U GND NC V REF- 0.01µ For a 3.3V system 50Ω pd For a 2.5V system 19Ω pd Figure 4c. PECL ...

Page 10

... For a 2.5V system 19ý. For a 3.3V system 50ý. Data Sheet Link http://www.micrel.com/product-info/products/sy58028u.shtml http://www.micrel.com/product-info/products/sy58029u.shtml http://www.micrel.com/product-info/products/sy58030u.shtml www.amkor.com/products/notes_papers/MLF_AppNote_0902.pdf www.micrel.com/product-info/products/solutions.shtml 10 Precision Edge +3. 50Ω 50Ω 50Ω 50Ω destination 50Ω 0.01µF (optional) Figure 5b. Parallel Termination (Three-Resistor "Y") ® SY58029U V CC ...

Page 11

... PCB Thermal Consideration for 32-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. 11 Package EP- Exposed Pad Die ® Package http://www.micrel.com WEB ® Precision Edge SY58029U ...

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