Exar Corporation

- Exar Corporation delivers highly differentiated silicon, software and subsystem solutions for industrial, datacom and storage applications. For nearly 40 years, Exar's comprehensive knowledge of end-user markets along with the underlying analog, mixed signal and digital technology has enabled innovative solutions that meet the needs of the evolving connected world. Exar's product portfolio includes power management and interface components, communications products, storage optimization solutions, network security and applied service processors. Exar has locations worldwide providing real-time customer support to drive rapid product development. For more information about Exar, visit: http://www.exar.com/

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Digi-Key’s library of more than 2000 exclusive PTM Online… On Demand® product training modules is a collection of training tools created with you – the busy design engineer – in mind. They are provided with the cooperation of participating supplier partners. From this one source, you can learn about the latest products and technologies, download datasheets, check inventory, contact our technical staff, and place an order for same-day shipment.

These modules are available in audio and non-audio formats and listed by supplier in easy-to-find alphabetical order. Simply locate the module that interests you and click on your format of choice. We hope you find these tools useful, and with new modules added continuously, we invite you to stop back often to see what’s new.

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Module NamePreviewAudioNon-AudioDurationParts List
  • Dual Protocol Over Shared Data Lines
2.1MB187KB10 minParts List
  • Part 1: PowerXR Digital Power Controllers
4.4MB1.5MB15 minParts List
  • Part 2: Switching Regulator Control
6.3MB1.3MB15 minParts List
  • Part 3: Digital Details of the XRP7714 Family
4.3MB1.1MB15 minParts List
  • Part 4: Digital Control Loop Design
4.1MB1.5MB15 minParts List
  • Part 5: Dead Time, Soft Start and Stop, Power Up Sequencing, Layout
7.0MB2.1MB10 minParts List
  • PCIe UARTs
2.5MB817KB5 minParts List
  • Powering VLSI Based Systems
6.3MB827KB15 minParts List
  • UART Product Overview
2.9MB509KB5 minParts List
  • UARTs with Integrated Level Shifters
3.4MB1.2MB10 minParts List
  • Understanding and Using Current Feedback Amplifiers
2.9MB770KB5 minParts List
  • XR21B1411 Full Speed USB Product and Technical Overview
5.3MB522KB5 minParts List
  • XR21V141x Full-Speed USB UART Family
3.2MB464KB5 minParts List
  • XRP9710/11 Family of Programmable Multi-Rail Power Modules
2.8MB1.0MB5 minParts List

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XR33202 High-Performance TransceiverXR33202 High-Performance Transceiver - Exar's XR33202 is a high-performance RS-485/RS-422 (TIA-485/TIA-422) transceiver, designed to meet the increasing system requirements found in today's portable/handheld, process control, and industrial equipment environments. This wide-supply (3.0 V to 5.5 V) device operates at maximum data rate of 20 Mbps and features a 1.65 V to 5.5 V I/O logic supply, simplifying multi-voltage system interfacing requirements.  More...

Application Notes

AN1: Board Layout for High-Speed Amplifiers
AN2: Driving Capacitive Loads
AN3: The Ins and Outs of Current Feedback Amplifiers
AN4: Driving CAT-3 UTP Cable
AN5: Demo Kit Drives VGA Over 300m of CAT5
AN6: CLC3800 Evaluation Board
AN10: Using SP6685 to Provide a Tiny, Efficient, High Power LED Camera Flash Solution
AN12: CEB2307/CEB2308 Evaluation Board User Guide for CDK2307/CDK2308 ADCs in QFN Package
AN15: CEB3404 Evaluation Board for CDK3404 8-bit, 180 MSPS, Triple Video DAC
AN16: CEB1307/CEB1308 Evaluation Board User Guide for CDK1307/CDK1308 Analog-to-Digital Converters
AN17: CEB8307 Evaluation Board User Guide for CDK8307 Family of Analog-to-Digital Converters
AN17: Design Considerations For Cell Phone Camera Flash Drivers
AN18: Competitor Replacement Guide for CDK8307
AN19: Competitive Comparisons for Triple Video DACs
AN19: SP7611A/12A/14A LED Current Setting
AN20: CDK8307 Noise Performance in Ultrasound Applications
AN21: Interfacing CDK8307 with VCA8617
AN23: CVBS CAT5e (Single Line) Video Driver/Receiver for 0 to 900m, 1200m and 1500m
AN24: 200kHz Audio Filter from 5V Supply
AN26: Powering LumiLEDs PWF4 with SP7685 1.2 A Capable Charge Pump DC/DC
AN28: Filter Design in Continuous Conduction Mode (CCM) of Operation; Part 2 Boost Regulator
AN30: SP6691 Remote Control 100 kHz Infrared LED Driver
AN31: PowerXR Configuration and Programming
AN32: Practical Layout Guidelines for PowerXR Designs
AN35: XRP77XX: Extending the MOSFET Gate Drive Conductors
AN42: Altera Cyclone IV Reference Design with XRP7714
AN102: Infrared Application with ST16C580, ST16C650A or XR16C850 UART
AN107: Interfacing 16Cxxx UARTs to a CPU
AN108: UART Crystal Oscillator Design Guide
AN112: Exar XR17C158/154/152 PCI UART EEPROM Interface
AN120: Exar's XR68C92/192 and XR88C92/192 Compared wtih Philip's SC28L92
AN121: Exar's XR68C92/192 Compared with Philip's SCC68692
AN122: Exar's XR68C681 Compared with Philip's SCC68692
AN123: Exar's XR88C92/192 Compared with Philip's SCC2692
AN124: Exar's XR88C92/192 Compared with Philip's SC26C92
AN125: Exar's XR16L784 Compared with the Philips SC28C94 and SC28L194
AN126: Exar's XR16L788 Compared with the Philips SCC2698B and SC28L198
AN130: Exar's DUARTs Compared with TI's TL16C752B
AN132: Exar's Single Channel UARTs Compared with TI's TL16C550C
AN133: Exar's QUARTs Compared with TI's TL16C554 and TL16C554A
AN134: Exar's ST16C654 and XR16C845 Compared with TI's TL16C754B
AN137: Exar XR16L580 Compared with TI's TL16C550C (48-TQFP)
AN138: Exar's XR16L2550 and XR16L2551 Compared withTI's TL16C752B
AN139: Exar's XR16L580 Compared with Industry Standard 16550 UART
AN141: Exar's XR16C854 Compared with Oxford's OX16C954
AN144: Exar's XR16L784 Compared with Oxford's OX16C954
AN160: Migrating from the XR16C2850 to the XR16L2750
AN161: Migrating from the XR16C2850 to the XR16L2751
AN164: Migrating from the ST16C2550 to the XR16L2750
AN170: Migrating to Exar's Fifth Generation UARTs: XR16L784/788
AN173: Upgrading from XR88C681 to XR88C92/192
AN176: Power-Save Feature: Sleep Current Down to 15µA
AN180: Use of Exar's ST16C2550 with Linux 2.4.X and 2.6.X Operating Systems, Phoenix BIOS Version 4.0 Release 6.0 and Windows Operating Systems
AN183: Migrating from the XR17D15X to the XR17V25X
AN189: Exar UARTs in GPS Applications
AN190: Exar UARTs in RS-485 Applications
AN200: Multidrop/9-Bit Mode Feature
AN201: Independent TX and RX Baud Rate Generator
AN202: USB UART Board Design Considerations for USB Compliance
AN204: UART Sleep Mode
AN205: Comparison of the XR21V1410 and the XR21B1411
AN207: Advantages of Enhanced Receiver Failsafe Features in RS-485/RS-422 Serial Transceivers
AN209: Windows and Linus API Interface Code for PCI/PCIe UARTs' Drivers
AN210: SP336 Pinout Recommendation for Single DB-9 Connector
AN211: SP337 Pinout Recommendation for Single DB-9 Connector
AN212: RS-485 Termination Resistor Switch Solution
AN213: USB Basics for the Exar Family of USB UARTs
AN214: RS-485 Transient Protection VS Fault Protection
AN215: Isolated 3.3V RS-232 Design
AN217: Exumerating the XR21B1411 USB UART By Location in Windows

Documents of Interest

Data Converter Selector Guide
High Performance Amplifier Selector Guide
HPA Products for General Purpose Industrial Applications
HPA Products for Medical Applications
HPA Products for Video Applications
Powering the Zynq®-7000 All Programmable SoC
Powering VLSI Based Systems

Product Brochures

Power Management

Product Information

Design Solutions, App Notes, Datasheets, etc.

White Papers


Technical Support Tools

Cross Reference Search
Powering the Zynq-7000 All Programmable SoC with XRP7714 Powering the Zynq-7000 All Programmable SoC with XRP7714
This reference design is a complete four output power system designed to power a Xilinx Zynq-7000 All Programmable (AP) SoC and associated DDR3 memory. This design was developed and validated on a customer board by our applications engineering team. The power system provides 1.0 V, 1.5 V, 0.75 V, 1.8 V, and 3.3 V in 1.5 square inch solution. The order and ramp rates for each supply are programmed to accommodate Zynq-7000 AP SoC sequencing requirements. All power supply operations can be controlled over an I²C interface.
Exar Corporation
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