MAXIM MAX3783 2.7Gbps Dual MUX Buffer with Loopback Data Sheet User Manual
Summary
This dual serial multiplexer and buffer provides robust high-speed data handling up to 2.7 Gbps for critical system backplane interconnects. Featuring programmable loopback paths and CML logic, it ensures reliable signal integrity for complex testing and fail-over applications. This manual serves as a comprehensive guide for hardware engineers, detailing electrical specifications, pin configurations, optimal application circuits, and performance characteristics needed to design robust high-speed serial communication systems.
Page 1 Text Content
19-2197; Rev 2; 1/08 EVALUATION KIT
AVAILABLE
2.7Gbps Dual Mux/Buffer with Loopback
General Description Features
The MAX3783 is a dual serial multiplexer (mux) and Provides Redundant Serial I/O buffer with selectable line-side loopback for system
11ps Deterministic Jitter
interconnect and serial backplane applications up to 2.7Gbps. Each independent channel consists of a trans-
Selectable Loopback
mitter with fanout of two and a receiver with a 2:1 input
On-Chip 50Ω Termination Resistors
mux. Selectable loopback paths support system testing.
Operating from a single 3.3V supply, this device has 3.3V Power Supply
current-mode logic (CML) inputs and outputs, which
Two-Port Integration
can be AC-coupled for PECL compatibility, if desired. The IC is packaged in a compact 48-pin TQFP-EP pack- age with exposed pad. Typical power consumption is 1.12W.
Applications Ordering Information
2.7Gbps Serial Communications
PART TEMP RANGE PIN-PACKAGE
System Interconnect
MAX3783UCM 0°C to +85°C 48 TQFP-EP*
Serial Backplane MAX3783UCM+ 0°C to +85°C 48 TQFP-EP*
Fail-Over and Protection Switching SE LB *EP = Exposed pad. SE LA
Denotes a lead-free package.
SO B+ SO A+ SO B- SO A-
Pin Configuration
LO 1B LO 1A
Typical Application Circuit appears at end of data sheet.
LO 1B LO 1A
LO 2B LO 2A LO 2B LO 2A
GN GN
GND LI2A+ SIA- LI2A- SIA+ VCC VCC LI1A+ LB1A LI1A- LB2A GND
MAX3783
LB1B GND LB2B LI1B- VCC LI1B+ SIB+ VCC SIB- LI2B- GND LI2B+
TQFP-EP*
*EXPOSED PAD MUST BE SOLDERED TO SUPPLY GROUND ON THE CIRCUIT BOARD.
Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
Page Summary Contents For MAXIM MAX3783 2.7Gbps Dual MUX Buffer with Loopback Data Sheet User Manual
Manual Details
| Brand | Dual |
|---|---|
| Pages | 8 |
| File Size | 203.23 KB |
| Published | May 28, 2026 |
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Frequently Asked Questions
What are the operational temperature ranges for this device?
The temperature range varies by model; the MAX3783UCM operates from -0°C to +85°C.
How is the device powered, and what is the typical power consumption?
It operates from a single 3.3V supply, with a typical power consumption of 1.12W for the TQFP-EP package.
What unique testing and connection capabilities does MAX3783 offer?
It features selectable line-side loopback paths to support system testing and functions as a dual mux/buffer.
Is this package suitable for high-density boards?
Yes, it is packaged in a compact 48-pin TQFP-EP package with exposed pad.