SK1300 Просмотр технического описания (PDF) - Semtech Corporation
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SK1300 Datasheet PDF : 6 Pages
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SK1300
PECL / LVPECL to LVDS Translator
HIGH PERFORMANCE PRODUCTS
Description
Features
The SK1300 is a high speed PECL / LVPECL to LVDS
translator. This device is designed to support frequency
rates in excess of 800 MHz utilizing low voltage
differential signaling (LVDS) technology. SK1300
operates over an extended supply range of 3.0 to 5.5V
which allow either PECL or LVPECL signal at its inputs
based on the supply voltage range. It also provides a
new alternative to high power pseudo-ECL devices for
high speed point-to-point interface using LVDS type
signals.
The SK1300 provides a VBB outputs for either single-
ended use or as a DC bias for AC coupling to the device.
The VBB output should only be used as a bias for the
SK1300 as its current sink/source capability is limited.
Whenever used, the VBB output should be bypassed
to VCC via a 0.01 mF capacitor.
Extended Supply Voltage Range: (VCC = 3.0V to
5.5V; VEE = 0V)
800 MHz Min. Toggle Frequency
Typical 350 mV Differential LVDS Output
VBB Output for Single-ended Applications
Internal Input Resistors; Pulldown on D,
Pulldown and Pullup on D*
ESD Protection > 4000V
Specified Over Industrial Temperature Range:
40oC to 85oC
Available in both 8 pin SOIC and MSOP Packages
Flammability Rate: UL-94 code V-0
Moisture Sensitivity: Level 1
Pin Descriptions
Under open input condition, the pulldown on D and
pullup and pulldown on D* will force the Q output low
and Q* output high.
Pin Name
D, D*
Q, Q*
VBB
Functional Block Diagram
Function
Differential PECL / LVPECL inputs
Differential LVDS Outputs
Reference Output Voltage
NC 1
D2
36.5K
75K
D* 3
75K
VBB 4
8 VCC
7Q
6 Q*
5 VEE
Revision 1/December 3, 2001
1
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