sy89832u Micrel Semiconductor, sy89832u Datasheet

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sy89832u

Manufacturer Part Number
sy89832u
Description
2.5v Ultra-precision 1 4 Lvds Fanout Buffer/translator With 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.
August 2007
(LVTTL/CMOS)
FEATURES
APPLICATIONS
FUNCTIONAL BLOCK DIAGRAM
Guaranteed AC performance over temperature
and voltage:
• DC-to >2.0GHz throughput
• <570ps propagation delay (IN-to-Q)
• <20ps within-device skew
• <200ps rise/fall time
Ultra-low jitter design:
• <1ps
• <1ps
• <10ps
• <10ps
Unique, patent-pending input termination and VT pin
accepts DC– and AC–coupled inputs
High-speed LVDS outputs
2.5V voltage supply operation
Industrial temperature range: –40°C to +85°C
Available in 16-pin (3mm x 3mm) MLF
Processor clock distribution
SONET clock distribution
Fibre Channel clock distribution
Gigabit Ethernet clock distribution
VREF-AC
VT
/IN
IN
EN
RMS
RMS
50Ω
50Ω
PP
PP
deterministic jitter
total jitter (clock)
random jitter
cycle-to-cycle jitter
D
Q
1:4
®
package
2.5V ULTRA-PRECISION 1:4 LVDS
FANOUT BUFFER/TRANSLATOR
WITH INTERNAL TERMINATION
Q0
/Q0
Q1
/Q1
Q2
/Q2
Q3
/Q3
1
1
LVDS (Low Voltage Differential Swing) 1:4 fanout buffer
optimized for ultra-low skew applications. Within device skew
is guaranteed to be less than 20ps over supply voltage and
temperature.
termination design that allows access to the termination
network through a VT pin. This feature allows the device to
easily interface to different logic standards. A VREF–AC
reference output is included for AC-coupled applications.
synchronization family. For 3.3V applications, see SY89833L.
For applications that require a different I/O combination,
consult Micrel's website at: www.micrel.com, and choose
from a comprehensive product line of high-speed, low-skew
fanout buffers, translators and clock generators.
DESCRIPTION
TYPICAL PERFORMANCE
The SY89832U is a 2.5V, high-speed, 2GHz differential
The differential input buffer has a unique internal
The SY89832U is a part of Micrel's high-speed clock
622MHz Output
TIME (200ps/div.)
hbwhelp@micrel.com or (408) 955-1690
Precision Edge
Precision Edge
Precision Edge
SY89832U
M9999-082407
SY89832U
®
®
®

Related parts for sy89832u

sy89832u Summary of contents

Page 1

... VT pin. This feature allows the device to easily interface to different logic standards. A VREF–AC reference output is included for AC-coupled applications. The SY89832U is a part of Micrel's high-speed clock synchronization family. For 3.3V applications, see SY89833L. ® For applications that require a different I/O combination, package consult Micrel's website at: www ...

Page 2

... They are used when AC coupling the CC . See “Input Interface Applications” section for more details (1) ( Precision Edge SY89832U (1) Operating Package Range Marking Industrial 832U Industrial 832U Industrial 832U with Pb-Free bar line indicator Industrial 832U with Pb-Free bar line indicator = 25° ...

Page 3

... Ambient Temperature (T CC Package Thermal Resistance ® MLF (θ ) Still-Air ........................................................ 60°C/W JA (ψ ) .................................................................... 32°C .......................... ±2mA (4) Condition No load, max see Figure 2c. see Figure 2d. Note 5 3 Precision Edge SY89832U (2) ) ......................... –40°C to +85°C A (3) Min Typ Max Units 2.375 2.5 2.625 75 100 100 110 0 ...

Page 4

... The circuit is designed to meet the DC specifications shown in the above table after thermal equilibrium has been established. August 2007 (6) = –40°C to +85°C A Condition See Figure 2c. See Figure 2d. (6) Condition 4 ® Precision Edge SY89832U Min Typ Max Units 250 325 mV 500 650 mV 1.125 1.275 V – ...

Page 5

... Note 14 At full output swing. . MAX 23 –1 PRBS pattern. (device), no more than one output edge in 10 MAX ® Precision Edge SY89832U Min Typ Max Units 2.0 2.5 GHz 370 470 570 ps 300 410 500 200 ps 300 ...

Page 6

... FREQUENCY (MHz) August 2007 = 25° 400mV, unless otherwise stated 525 500 475 450 425 400 375 350 325 2 2 Precision Edge Propagation Delay vs. Input Voltage Swing 100 300 500 700 900 INPUT VOLTAGE SWING (V) hbwhelp@micrel.com or (408) 955-1690 ® SY89832U M9999-082407 ...

Page 7

... Micrel, Inc. FUNCTIONAL CHARACTERISTICS V = 2.5V, GND = 0V 400mV 100ý across the outpouts 155MHz Output TIME (1.291ns/div.) August 2007 = 25°C, unless otherwise stated. A 622MHz Output TIME (200ps/div.) 1GHz Output TIME (200ps/div.) 7 hbwhelp@micrel.com or (408) 955-1690 ® Precision Edge SY89832U M9999-082407 ...

Page 8

... OUT Figure 2b. LVDS Common Mode Measurement OUT 325mV (typical) 8 .86k½ .86k½ 50Ω v 50Ω ∆v GND 650mV (typical DIFF_IN DIFF_OUT Figure 2d. Differential Swing hbwhelp@micrel.com or (408) 955-1690 ® Precision Edge SY89832U , OCM OCM M9999-082407 ...

Page 9

... LVDS /IN SY89832U VREF_AC Figure 3e. LVDS Input Interface Data Sheet Link http://www.micrel.com/product-info/products/sy89830u.shtml http://www.micrel.com/product-info/products/sy89831u.shtml http://www.micrel.com/product-info/products/sy89833u.shtml http://www.micrel.com/product-info/products/sy89834u.shtml http://www.amkor.com/products/notes_papers/MLF_appnote_0301.pdf http://www.micrel.com/product-info/as/solutions.shtml 9 Precision Edge SY89832U LVPECL /IN SY89832U V –2V 19Ω VREF_AC 0.01µF NC Figure 3c. DC-Coupled LVPECL Input Interface (*Bypass with 0.01µ ...

Page 10

... Exposed pads must be soldered to a ground for proper thermal management (408) 474-1000 FAX Micrel for any damages resulting from such use or sale. © 2005 Micrel, Incorporated. 10 Package EP- Exposed Pad Die ® Package http://www.micrel.com WEB hbwhelp@micrel.com or (408) 955-1690 ® Precision Edge SY89832U M9999-082407 ...

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