Dual-channel XAUI to SFI reference design for systems with two or more SFP+ optical ports


Design files


The TIDA-00234 XAUI to SFI reference design is intended for Enterprise and Service Provider Networking applications like Ethernet Switches and Routers that implement multiple 10G Ethernet compliant Optical (SFP+) ports. This reference design features the TLK10232 device which is the most compact Dual-channel XAUI-to-SFI Transceiver with the lowest power consumption in its category. This reference design allows access to the high-speed signals (up to 10Gbps) generated by the TLK10232 via SMA connectors or an SFP+ Module via the SFP+ optical module cage. Also, featured is the CDCM6208 device that can provide extremely low-jitter Clock input to the TLK10232 in customer systems that do not have one available (or does not meet the jitter requirement of the system).

  • Dual Channel XAUI to SFI reference design which includes SFP+ optical module cage to access high speed signals (up to 10Gbps) 
  • Supports flexible clocking schemes including externally-jitter-cleaned clock recovered from the high-speed side
  • Features TLK10232 which is the only Dual-channel XAUI-to-SFI Transceiver with Crosspoint capability in addition to:
    • Smallest footprint (13x13mm) within its class of devices and
    • Lowest power consumption per channel (800mW Nominal/Ch)
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Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDU347.PDF (511 K)

Test results for the reference design, including efficiency graphs, test prerequisites and more

TIDC427.ZIP (4165 K)

Detailed schematic diagram for design layout and components

TIDR623.PDF (411 K)

Detailed schematic diagram for design layout and components

TIDR624.PDF (62 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDC426.ZIP (1083 K)

Design file that contains information on physical board layer of design PCB


Includes TI products in the design and potential alternatives.

Other interfaces

TLK10232Dual channel XAUI-to-10GBASE-KR backplane transceiver with crosspoint switch

Data sheet: PDF
Auto-direction voltage translators

TXB01088-Bit Bidirectional Voltage-Level Shifter with Auto Direction Sensing and +/-15-kV ESD Protect

Data sheet: PDF | HTML
Clock buffers

CDCLVP1204Low-jitter, two-input, selectable 1:4 universal-to-LVPECL buffer

Data sheet: PDF | HTML
Clock generators

CDCM62082:8 ultra-low power, low jitter clock generator

Data sheet: PDF | HTML
I2C general-purpose I/Os (GPIOs)

TCA642424-bit translating 1.65- to 5.5-V I2C/SMBus I/O expander with interrupt, reset & config registers

Data sheet: PDF
Linear & low-dropout (LDO) regulators

TLV702300-mA, high-PSRR, low-IQ, low-dropout voltage regulator with enable

Data sheet: PDF | HTML
Linear & low-dropout (LDO) regulators

TPS744013-A, low-VIN (0.8-V), low-noise, high-PSRR, adjustable ultra-low-dropout voltage regulator

Data sheet: PDF | HTML

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Evaluation board

TLK10232EVM — TLK10232EVM - Motherboard evaluation module for TLK10232

Motherboard evaluation board for TLK10232 comes with custom-developed GUI and a detailed EVM user guide. This EVM along with the GUI, enable customers to configure the registers of all the channels independently and to debug the device. The user’s guide provides guidance on proper use of the (...)
User guide: PDF
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Technical documentation

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Test report TIDA-00234 Test Results May 12, 2014

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