sy89547l Micrel Semiconductor, sy89547l Datasheet

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sy89547l

Manufacturer Part Number
sy89547l
Description
3.3v, 3.2gbps Differential 4 1 Lvds Multiplexer With 1 2 Fanout And Internal Termination
Manufacturer
Micrel Semiconductor
Datasheet
Micrel, Inc.
I Selects among four differential inputs
I Provides two copies of the selected input
I Guaranteed AC performance over temp and voltage:
I Unique input isolation design minimizes crosstalk
I Ultra-low jitter design:
I Internal input termination
I Unique input termination and V
I 350mV LVDS output swing
I Power supply 3.3V
I –40
I Available in 32-pin (5mm x 5mm) MLF™ package
I SONET/SDH multi-channel select applications
I Fibre Channel applications
I GigE applications
Precision Edge is a registered trademark of Micrel, Inc.
Micro LeadFrame and MLF are registered trademarks of Amkor Technology.
M9999-060906
hbwhelp@micrel.com or (408) 955-1690
FEATURES
APPLICATIONS
TYPICAL PERFORMANCE
• DC-to > 3.2Gbps data rate throughput
• < 620ps In-to-Out t
• < 150ps t
• < 1ps
• < 10ps
• < 10ps
• < 0.7ps
coupled and AC-coupled inputs (LVDS, LVPECL,
CML)
°
C to +85
RMS
PP
PP
RMS
r
deterministic jitter
total jitter (clock)
400
350
300
250
200
150
100
/t
random jitter
50
f
°
0
crosstalk-induced jitter
0
C temperature range
1000 2000 3000 4000 5000 6000
Output Amplitude
FREQUENCY (MHz)
vs. Frequency
±
pd
10%
T
pin accepts DC-
3.3V, 3.2Gbps DIFFERENTIAL 4:1 LVDS
MULTIPLEXER with 1:2 FANOUT and
INTERNAL TERMINATION
1
multiplexer that provides two copies of the selected input.
The high speed LVDS (350mV) compatible outputs with a
guaranteed throughput of up to 3.2Gbps over temperature
and voltage.
3-pin internal termination design that allows access to the
termination network through a V
the device to easily interface to different logic standards,
both AC- and DC-coupled without external resistor-bias and
termination networks. The result is a clean, stub-free, low
jitter interface solution.
is guaranteed over the full industrial temperature range
(–40°C to +85°C). For applications that require a 2.5V supply,
consider the SY89546U. For applications that only require
one differential output, consider the SY89544U or SY89545L.
The SY89547L is part of a Micrel’s Precision Edge
family. All support documentation can be found on Micrel’s
web site at: www.micrel.com.
DESCRIPTION
FUNCTIONAL BLOCK DIAGRAM
The SY89547L is a precision, high-speed 4:1 differential
The SY89547L operates from a single 3.3V supply, and
The SY89547L differential inputs include Micrel’s unique,
/IN0
/IN1
/IN2
/IN3
IN0
IN1
IN2
IN3
V
V
V
V
T0
T1
T2
T3
50
50
50
50
50
50
50
50
SEL0 (CMOS/TTL)
SEL1 (CMOS/TTL)
0
1
2
3 S0
T
4:1 MUX
MUX
pin. This feature allows
Precision Edge
S1
Rev.: B
Issue Date: June 2006
Precision Edge
Precision Edge
SY89547L
1:2 Fanout
Amendment: /1
SY89547L
®
product
LVDS
/Q0
/Q1
Q0
Q1
®
®
®

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sy89547l Summary of contents

Page 1

... For applications that require a 2.5V supply, consider the SY89546U. For applications that only require one differential output, consider the SY89544U or SY89545L. The SY89547L is part of a Micrel’s Precision Edge family. All support documentation can be found on Micrel’s web site at: www.micrel.com. ...

Page 2

... Ground: Ground pin and exposed pad must be connected to the same ground plane. 2 Precision Edge Operating Package Range Marking Industrial SY89547L Industrial SY89547L Industrial SY89547L with Pb-Free bar-line indicator Industrial SY89547L with Pb-Free bar-line indicator = 25°C, DC electricals only. A pin /2. CC ® ...

Page 3

... Still-Air ................................................................ 35°C/W 500lfpm .............................................................. 28°C/W MLF ® Junction-to-Board ............................................... 20°C/W (5) Condition No Load, Max. V (6) CC Note 7 Note 7 Note 7, 8 Note 7, 8 Note 8 and V definition. IN DIFF_IN 3 Precision Edge SY89547L (2) ) ..................................... 3. ........................ –40°C to +85°C A (4) Min Typ Max 3.0 3.3 3 100 120 –1.6 V ...

Page 4

... Q and /Q, unless otherwise stated. L Condition See Figure 5a See Figure 5a See Figures 1a, 5a See Figure 1b See Figure 5b See Figure 5b (9) Condition 4 ® Precision Edge SY89547L Min Typ Max Units 1.475 V 0.925 V 250 350 mV 500 700 mV 1.125 1.275 V – ...

Page 5

... OUT IN-to-Q SEL-to-Q Note 11 Note 12 Note 13 Note 14 Note 15 Note 16 Note 17 Note 18 At full output swing 23 –1 PRBS pattern more than one output edge in 10 MAX 5 Precision Edge SY89547L Min Typ Max NRZ Data 3.2 Clock 4 340 440 540 200 420 700 ...

Page 6

... Figure 2. Timing Diagram IN2 IN3 SEL0 Precision Edge V , DIFF_IN V 700mV (Typ.) DIFF_OUT Figure 1b. Differential Voltage Swing SEL1 ® SY89547L / ...

Page 7

... Output Q /Q TIME (600ps/div.) 2.5GHz Output Q /Q TIME (50ps/div.) 22Mbps Mask 2 TIME 400ps/div.) M9999-060906 hbwhelp@micrel.com or (408) 955-1690 23 Ð1 PRBS) 7 Precision Edge 1.6GHz Output Q /Q TIME (80ps/div.) 3.2GHz Output Q /Q TIME (40ps/div.) .5Gbps Mask 23 2 Ð1 PRBS) TIME 100ps/div.) ® SY89547L ...

Page 8

... Micrel, Inc. FUNCTIONAL CHARACTERISTICS V = 3.3V, GND = 0V 100mV 25° 3.2Gbps Data Output (2 TIME (80ps/div.) M9999-060906 hbwhelp@micrel.com or (408) 955-1690 –1 PRBS ® Precision Edge SY89547L ...

Page 9

... Figure 3. Simplified Differential Input Stage CML /IN SY89547L GND V –1. GND Figure 4b. CML Interface (AC-Coupled LVDS /IN SY89547L GND Figure 4e. LVDS Interface 9 ® Precision Edge SY89547L LVPECL / SY89547L 0.01µF GND For V = 3.3V Figure 4c. LVPECL Interface (DC-Coupled) ...

Page 10

... EMI low. V 100 OUT Figure 5b. LVDS Common Mode Measurement Data Sheet Link http://www.micrel.com/_PDF/HBW/sy89542u.pdf http://www.micrel.com/_PDF/HBW/sy89543l.pdf http://www.micrel.com/_PDF/HBW/sy89544u.pdf http://www.micrel.com/_PDF/HBW/sy89545l.pdf http://www.micrel.com/_PDF/HBW/SY89546u.pdf www.amkor.com/products/notes_papers/MLF_AppNote_0902.pdf www.micrel.com/product-info/products/solutions.shtml 10 Precision Edge SY89547L OCM OCM ND ® ...

Page 11

... PCB Thermal Consideration for 32-Pin MLF (Always solder, or equivalent, the exposed pad to the PCB (408) 474-1000 FAX WEB Micrel for any damages resulting from such use or sale. © 2006 Micrel, Incorporated. 11 Precision Edge Package EP- Exposed Pad Die ® Package http://www.micrel.com ® SY89547L ...

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