sy898535xl Micrel Semiconductor, sy898535xl Datasheet

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sy898535xl

Manufacturer Part Number
sy898535xl
Description
Precision Differential 3.3v, Low Skew, 1 4 Crystal Oscillator/lvcmos/lvttl -to- Lvpecl Fanout Buffer
Manufacturer
Micrel Semiconductor
Datasheet

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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
sy898535xlKY
Manufacturer:
MICREL
Quantity:
282
General Description
The SY898535XL is a 3.3V, low skew, 1:4 Crystal
Oscillator/LVCMOS/LVTTL-to-LVPECL fanout buffer with
selectable single ended clock or crystal inputs. The clock
input accepts LVCMOS or LVTTL input levels and
translate them to 3.3V LVPECL levels. To eliminate runt
pulses on the outputs during asynchronous assertion/de-
assertion of the clock enable pin, the clock enable is
synchronized with the input signal.
The SY898535XL operates from a 3.3V ±5% supply and is
guaranteed over the full industrial temperature range of
–40°C to +85°C. The SY898535XL 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
Precision Edge is a registered trademark of Micrel, Inc.
June 2011
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (
®
product line.
Features
• Provides four differential 3.3V LVPECL copies
• Selects between single-ended CLK or crystal inputs
• CLK accepts LVCMOS or LVTTL input levels
• Guaranteed AC performance over temperature and
• 3.3V ±5% supply voltage
• –40°C to +85°C industrial temperature operating range
• Available in a 20-pin TSSOP package
Applications
• Gigabit Ethernet
• 10Gigabit Ethernet
• SONET/SDH
• PCI
Markets
• LAN/WAN
• Enterprise servers
• ATE
• Test and measurement
408
Precision Differential 3.3V, Low Skew, 1:4
supply voltage:
235MHz Maximum output frequency
<1.65ns Propagation delay (In-to-Q)
<30ps Output skew
<200ps Part-to-part skew
Additive phase jitter, RMS: 0.09ps (typical)
Crystal Oscillator/LVCMOS/LVTTL -to-
) 944-0800 • fax + 1 (408) 474-1000 •
LVPECL Fanout Buffer
SY898535XL
hbwhelp@micrel.com
http://www.micrel.com
or (408) 955-1690
M9999-062211-B

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sy898535xl Summary of contents

Page 1

... The SY898535XL operates from a 3.3V ±5% supply and is guaranteed over the full industrial temperature range of –40°C to +85°C. The SY898535XL is part of Micrel’s high- ® speed, Precision Edge product line. ...

Page 2

... Ordering Information (1) Part Number Package Type SY898535XLKY (2) SY898535XLKYTR Notes: 1. Contact factory for die availability. Dice are guaranteed Tape and Reel. Truth Table Inputs CLK_EN CLK_SEL June 2011 Operating Range K4-20-1 Industrial K4-20-1 Industrial = 25°C, DC Electricals Only. A Selected Source ...

Page 3

... Positive Power Supply Pins: Bypass with 0.1µF||0.01µF low ESR capacitors as close to the V pins as possible. CC LVPECL Differential Output Pairs: Differential buffered output copies the selected input signal. The output swing is typically 800mV. Unused output pairs may be left floating with no impact on jitter. See “Truth Table” below. 3 SY898535XL TH M9999-062211-B hbwhelp@micrel.com or (408) 955-1690 = ...

Page 4

... A ( Min Typ 3.135 3.3 Min Typ Max -0.3 0.8 150 = 3.465V -5 = 3.465V -150 Min Typ – 2 0.6 hbwhelp@micrel.com or (408) 955-1690 SY898535XL Max Units 3.465 Units + 0. µA 5 µA µA µA Max Units – 1.0 V M9999-062211-B ...

Page 5

... A Condition 155.52MHz, (Integration Range: 12kHz-20MHz) 20% to 80% 5 Min. Typ. Max. Fundamental Min Typ 1.40 0.057 30 300 46 50 hbwhelp@micrel.com SY898535XL Units MHz Ω Max Units 235 MHz 1. RMS ps 200 ps 600 M9999-062211-B ...

Page 6

... Micrel, Inc. Timing Diagrams June 2011 Figure 1a. CLK_EN Timing Diagram Figure 1b. Propagation Delay Figure 1c. Output-to-Output Skew 6 SY898535XL M9999-062211-B hbwhelp@micrel.com or (408) 955-1690 ...

Page 7

... Purchaser’s use or sale of Micrel Products for use in life support appliances, devices or systems is a Purchaser’s own risk and Purchaser agrees to fully June 2011 20-Pin TSSOP (K4-20-1) indemnify Micrel for any damages resulting from such use or sale. © 2011 Micrel, Incorporated. 7 SY898535XL http://www.micrel.com M9999-062211-B hbwhelp@micrel.com or (408) 955-1690 nt ...

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