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دیتاشیت - Intersil Corporation - Triple Differential Twisted-Pair Driver with Common-Mode Sync Encoding

شماره قطعه EL4543
شرح مفصل Triple Differential Twisted-Pair Driver with Common-Mode Sync Encoding
تولید کننده Intersil Corporation 
آرم Intersil Corporation 


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EL4543 شرح
®
Data Sheet
July 8, 2004
EL4543
FN7325.2
Triple Differential Twisted-Pair Driver with
Common-Mode Sync Encoding
The EL4543 is a high bandwidth
triple differential amplifier with
integrated encoding of video sync
signals. The inputs are suitable for handling high speed
video or other communications signals in either single-ended
or differential form, and the common-mode input range
extends all the way to the negative rail enabling ground-
referenced signalling in single supply applications. The high
bandwidth enables differential signalling onto standard
twisted-pair or coax with very low harmonic distortion, while
internal feedback ensures balanced gain and phase at the
outputs reducing radiated EMI and harmonics.
Embedded logic encodes standard video horizontal and
vertical sync signals onto the common mode of the twisted
pair(s), transmitting this additional information without the
requirement for additional buffers or transmission lines. The
EL4543 enables significant system cost savings when
compared with discrete line driver alternatives.
The EL4543 is available in a 24-pin QSOP package and is
specified for operation over the -40°C to +85°C temperature
range.
Ordering Information
PART
NUMBER
PACKAGE
TAPE &
REEL
PKG. DWG. #
EL4543IU
EL4543IU-T7
24-Pin QSOP
24-Pin QSOP
-
7”
MDP0040
MDP0040
EL4543IU-T13
EL4543IUZ
(Note 1)
24-Pin QSOP
24-Pin QSOP
(Pb-Free)
13”
-
MDP0040
MDP0040
EL4543IUZ-T7
(Note 1)
EL4543IUZ-T13
(Note 1)
EL4543IL
(Note 2)
24-Pin QSOP
(Pb-Free)
24-Pin QSOP
(Pb-Free)
20-Pin QFN
7”
13”
-
MDP0040
MDP0040
MDP0046
NOTES:
1. Intersil Pb-free products employ special Pb-free material sets;
molding compounds/die attach materials and 100% matte tin
plate termination finish, which is compatible with both SnPb and
Pb-free soldering operations. Intersil Pb-free products are MSL
classified at Pb-free peak reflow temperatures that meet or
exceed the Pb-free requirements of IPC/JEDEC J Std-020B.
2. Coming soon
Features
• Fully differential inputs, outputs, and feedback
• 350MHz -3dB bandwidth
• 1200V/µs slew rate
• -75dB distortion at 5MHz
• Single 5V to 12V operation
• 50mA minimum output current
• Low power - 36mA total typical supply current
• Pb-free available
Applications
• Twisted-pair driver
• Differential line driver
• VGA over twisted-pair
• Transmission of analog signals in a noisy environment
H
Low
Low
High
High
TABLE 1. SYNC SIGNAL ENCODING
COMMON COMMON COMMON
MODE A MODE B MODE C
V (RED) (GREEN) (BLUE)
High
3.0
2.0
2.5
Low 2.5 3.0 2.0
Low 2.0 3.0 2.5
High
2.5
2.0
3.0
TABLE 2. INPUT LOGIC THRESHOLD (+5V SUPPLY)
VLO, max
VHI, min
0.8V
2V
1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2002-2004. All Rights Reserved. Elantec is a registered trademark of Elantec Semiconductor, Inc.
All other trademarks mentioned are the property of their respective owners.

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