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SY10H841L

Micrel Semiconductor
Part Number SY10H841L
Manufacturer Micrel Semiconductor
Description 3.3V SINGLE SUPPLY QUAD PECL-TO-TTL W/LATCHED OUTPUT ENABLE
Published Jan 27, 2007
Detailed Description Micrel, Inc. NOT RECOMMENDED FOR NEW DESIGNS 3.3V SINGLE SUPPLY QUAD PECL-TO-TTL W/LATCHED OUTPUT ENABLE Precision Edg...
Datasheet PDF File SY10H841L PDF File

SY10H841L
SY10H841L

Overview
Micrel, Inc.
NOT RECOMMENDED FOR NEW DESIGNS 3.
3V SINGLE SUPPLY QUAD PECL-TO-TTL W/LATCHED OUTPUT ENABLE Precision Edge® Precision SESYdY110g00HHe88®4411LL SY10H841L SY100H841L FEATURES ■ 3.
3V power supply ■ Translates positive ECL to TTL (PECL-to-TTL) ■ 300ps pin-to-pin skew ■ 500ps part-to-part skew ■ Differential internal design for increased noise immunity and stable threshold inputs ■ VBB reference output ■ Single supply ■ Enable input ■ Latch enable input ■ Extra TTL and ECL power/ground pins to reduce cross-talk/noise ■ High drive capability: 24mA each output ■ Fully compatible with industry standard 10K, 100K I/O levels ■ Available in 16-pin SOIC package Precision Edge® DESCRIPTION The SY10/100H841L are single supply, low skew translating 1:4 clock drivers.
The devices feature a 24mA TTL output stage, with AC performance specified into a 20pF load capacitance.
A latch is provided on-chip.
When LEN is LOW (or left open, in which case it is pulled low by the internal pulldowns) the latch is transparent.
A HIGH on the enable pin (EN) forces all outputs LOW.
As frequencies increase to 40MHz and above, precise timing and shaping of clock signals becomes extremely important.
The H841 solves several clock distribution problems such as minimizing skew (300ps), maximizing clock fanout (24mA drive), and precise duty cycle control through a proprietary differential internal design.
The 10K version is compatible with 10KH ECL logic levels.
The 100K version is compatible with 100K levels.
BLOCK DIAGRAM VBB D D LEN DQ EN PIN NAMES Pin Function Q0 GT TTL Ground (0V) VT TTL VCC (+3.
3V) VE ECL VCC (+3.
3V) Q1 GE ECL Ground (0V) D, D Signal Input (PECL) VBB VBB Reference Output (PECL) Q2 Q0 - Q3 Signal Outputs (TTL) EN Enable Input (PECL) LEN Latch Enable Input Q3 Precision Edge is a registered trademark of Micrel, Inc.
M9999-032906 hbwhelp@micrel.
com or (408) 955-1690 1 Rev.
: E Amendment: /0 Issue Date: March 2006 Micrel, Inc.
Precision Edge® SY10H84...


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