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Summary of Contents for Atmel AT73C239-EK1
- Page 1 AT73C239-EK1 Evaluation Board ....................User Guide...
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Page 2: Table Of Contents
Table of Contents Section 1 Overview....................1-1 Scope......................1-1 Deliverables ....................1-1 AT73C239-EK1 Evaluation Board ............1-1 Section 2 Setting Up the AT73C239-EK1 Board ..........2-1 Electrostatic Warning ................2-1 System Requirements................2-1 Hardware Settings ..................2-1 Layout .......................2-2 Section 3 AT73C239-EK1 Board Description ............3-1 AT73C239 Device ..................3-1... -
Page 3: Overview
Section 1 Overview Scope This document describes the AT73C239-EK1 dedicated to the AT73C239 product. This board is designed to allow an easy evaluation of the product using demonstration software. To increase its capabilities for demonstration, this standalone board has several serial interfaces (Parallel Port and Two-wire Interface). - Page 4 Overview ! Power supply select I2 button – Input power supply selection for LDO4 AT73C239-EK1 Evaluation Board User Guide 6235A–PMAAC–04-Apr-06...
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Page 5: Setting Up The At73C239-Ek1 Board
Section 2 Setting Up the AT73C239-EK1 Board Electrostatic The AT73C239-EK1 evaluation board is shipped in protective anti-static packaging. The board must not be subjected to high electrostatic potentials. A grounding strap or similar Warning protective device should be worn when handling the board. Avoid touching the compo- nent pins or any other metallic element. -
Page 6: Layout
Setting Up the AT73C239-EK1 Board Layout Figure 2-1. AT73C239-EK1 Top View VIN Input Transformer VBAT Input LDO4 Input Voltage Parallel port 5.5V up to 9V Ground Voltage Voltage Selection AT73C239 Reset Input And Output Pins Output Voltage Measurement Ground for... - Page 7 Setting Up the AT73C239-EK1 Board Figure 2-2. AT73C239-EK1 Serigraphy - Top View AT73C239-EK1 Evaluation Board User Guide 6235A–PMAAC–04-Apr-06...
- Page 8 Setting Up the AT73C239-EK1 Board Figure 2-3. PCB Layout - Top Layer AT73C239-EK1 Evaluation Board User Guide 6235A–PMAAC–04-Apr-06...
- Page 9 Setting Up the AT73C239-EK1 Board Figure 2-4. PCB Layout - Bottom Layer AT73C239-EK1 Evaluation Board User Guide 6235A–PMAAC–04-Apr-06...
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Page 10: At73C239-Ek1 Board Description
! Two-wire Interface (TWI) for independent activation and output voltage programming for each LDO ! Available in 3 x 3 x 0.9 mm 16-pin QFN package ! Applications: GPS Modules, WLAN Devices, Wireless Modules AT73C239-EK1 Evaluation Board User Guide 6235A–PMAAC–04-Apr-06... - Page 11 ILOAD 30 mA Fuse1 Fuse2 VZAP VMON POR1 POR1 VDD3 VBAT LDO4 LDO3 2.5V-3.6V 3.0V-3.6V VOUT VOUT 1.2V or 1.5V or 1.8V 1.23V or 1.5V or 1.8V ILOAD 2 mA ILOAD 60 mA LPBG AT73C239-EK1 Evaluation Board User Guide 6235A–PMAAC–04-Apr-06...
- Page 12 AT73C239-EK1 Board Description 3.1.2 Board Position The AT73C239 is located in the center of the AT73C239-EK1. Figure 3-2 . AT73C239 Placement AT73C239 AT73C239-EK1 Evaluation Board User Guide 6235A–PMAAC–04-Apr-06...
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Page 13: Power Supply Circuitry
Figure 3-3. AT73C239 Power Supply LDO4 - Input VBAT LDO3 - Input AT73C239 LDO2 - Input LDO1 - Input Figure 3-4 . Power Supply Connector VIN 3V to 3.6V VBAT 2.5V to 3.6V Transformer AT73C239-EK1 Evaluation Board User Guide 6235A–PMAAC–04-Apr-06... -
Page 14: Two-Wire Interface
If the user wants to program the AT73C239 directly with an extend host, J4 can be removed and the AT73C239 can be driven directly. Figure 3-6 . AT73C239 TWI Configuration TWI DATA CONNECTOR TWI CLOCK CONNECTOR PARALLEL PORT AT73C239-EK1 Evaluation Board User Guide 6235A–PMAAC–04-Apr-06... -
Page 15: Using The At73C239-Ek1
Section 4 Using the AT73C239-EK1 Getting Started The AT73C239-EK1 can be used as a standalone board. For optimal use, the connec- tion between the demo board and the PC should be removed. Figure 4-1. AT73C239-EK1 Block Diagram VBAT 3V/3.6V 2.5V/3.6V... -
Page 16: Electrical Parameter Measurement
Using the AT73C239-EK1 Electrical Parameter Measurement The AT73C239-EK1 is designed to allow easy measurement of electrical parameters on the board. Connectors are provided to perform voltage and current measurements. Measurements such as load regulation, line regulation, noise and PSRR can be performed on these pads. - Page 17 Figure 4-4 . Load Connection on Each Output LDO Application GROUND Connect To Application (For example: RTC Block) Connect To Application (For example: Micrcontroller Core) Connect To Application (For example: Flash Memory) Connect To Application (For example: Microcontroller Pads) AT73C239-EK1 Evaluation Board User Guide 6235A–PMAAC–04-Apr-06...
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Page 18: At73C239 Test Interface
Software Interface LDO 1 Output Voltage Selection 2.75V / 1.8V LDO 4 Output Voltage Selection 1.8V / 1.5V / 1.2V Power On/Off Of LDO’s LDO 3 Output Voltage Selection 1.8V / 1.5V / 1.23V AT73C239-EK1 Evaluation Board User Guide 6235A–PMAAC–04-Apr-06... -
Page 19: Quick Start
! To launch the AT73C239 software test interface, click on AT73C239_Rev1-3.exe in the folder CD-ROM:\SOFTWARE\ CD. ! If the PC has a good connection with the AT73C239-EK1, the message board indicates “TWI ready”. If the message box indicates “TWI error”, check that the setup has been done correctly. -
Page 20: Technical Specifications
– Physical Dimensions ..........L= 65 x W = 65 x H = 27 mm – Weight ......................50 g ! Operating Conditions – Voltage Supply ..................5.5V - 9V ! Connections – Parallel port Connector ..............SubD25 male AT73C239-EK1 Evaluation Board User Guide 6235A–PMAAC–04-Apr-06... -
Page 21: Pcb Schematics
Section 6 PCB Schematics AT73C239-EK1 Evaluation Board User Guide 6235A–PMAAC–04-Apr-06... -
Page 22: Revision History
Section 7 Revision History Revision History Table 7-1. Change Document Comments Request Ref. 6235A First issue. AT73C239-EK1 Evaluation Board User Guide 6235A–PMAAC–04-Apr-06... - Page 23 Disclaimer: The information in this document is provided in connection with Atmel products. No license, express or implied, by estoppel or otherwise, to any intellectual property right is granted by this document or in connection with the sale of Atmel products. EXCEPT AS SET FORTH IN ATMEL’S TERMS AND CONDI- TIONS OF SALE LOCATED ON ATMEL’S WEB SITE, ATMEL ASSUMES NO LIABILITY WHATSOEVER AND DISCLAIMS ANY EXPRESS, IMPLIED OR STATUTORY...
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