ISL54302EVAL1Z Evaluation Board User’s Manual ® Application Note Before Getting Started Voltage Supplies This document supplements the ISL54302 data sheet FN6592. Evaluation board users should review that document to obtain information on the part’s basic functionality and power requirements. Important Note: before powering up the board, review the Power-Up Sequence section in the ISL54302 data sheet. There are many DC sources utilized, so a user may inadvertently misapply the power sources causing damage to the part. Take time to review the ISL54302 Data Sheet (FN6592) and become familiar with the part’s basic functions and power options. Note also that FN6591 supersedes this document with respect to updates and modifications. Always refer to that document if discrepancies occur. March 18, 2008 AN1382.0 Two buttons are located on the right hand side of the user screen. They provide a quick means of testing the computer to Dongle communications. Clicking on the “Led’s On” will turn on the Green and Red Led’s located on the USB Dongle. Clicking “Led’s Off” will turn them off again. If the LED’s fail to respond: 1. Exit the application and restart the application. 2. Exit the application, disconnect the USB cable, wait for the USB disconnect tone, then connect the USB, wait for the connect tone and restart the application. Once you can successfully turn the Dongle Led’s on and off, you are ready to start working with ISL54302 device. No signal should be more positive than VPLUS or more negative than VSS. Also, all voltages are reference to the GND Pin. Under all circumstances, VLOGIC should be 3.0V ±10% and VDD should also be 3.0V above VSS. Software Installation This ISL54302EVAL1Z Evaluation board comes with software for operating the switch conditions of the board. This feature is based in a USB interface dongle that Intersil uses in many applications. This dongle comes pretested and plugged into the ISL54302EVAL1Z Evaluation board. Care should be taken not to inadvertently remove the dongle from the evaluation board as it is detachable. It is detachable so the user can remove the Dongle and connect a customer specific control if desired. Before attaching the USB cable or applying power to the Evaluation board banana jacks, the user must execute the installation program. Intersil_ISL54302_Installer.Exe. This program not only installs the Evaluation Software, but also installs the USB drivers needed to communicate with the Intersil USB Dongle. Double click on the installer program to execute and follow the defaults for performing the installation. All Intersil Evaluation Software is placed in a directory in the Windows “Program Files” Directory. After installation the software is available at: All Programs/Intersil/Intersil_54302. In that directory will be both the execution program and the uninstaller. FIGURE 1. ISL54302 SWITCH CONTROL Device Power Supply Banana Jacks There are five banana jacks located on the edge of the board. • GND - the reference for all supplies always 0Vs • VSS - the negative switch operating range (-3V to 0V) • VDD - digital logic supply, always VSS + 3V • VLOGIC - digital interface reference always 3V • VPLUS - Positive switch operation range, 5V to 9V Apply these voltages in the order detailed in the device specification. Test Setup Voltages The user may wish to adopt the procedure outlined in the “Initial Power-Up” section on page 2. Once installation is complete, connect the USB cable. You will receive audio notice that the new device is ready for use. Once this occurs, double click on the ISL54302 application. The operator interface screen will appear on your desktop. 1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2008. All Rights Reserved All other trademarks mentioned are the property of their respective owners. Application Note 1382 Electrical Specifications PARAMETER Evaluation Board Test, Typical Current Drain TEMP (°C) MIN TYP MAX UNITS POWER SUPPLY CHARACTERISTICS VPLUS Supply, I (Quiescent) 25 - 15 - µA VSS Supply, I (Quiescent) 25 - 16 - µA VDD Supply, I (Quiescent) 25 - 1 - µA VLOGIC Internal Logic Supply, I (Quiescent) 25 - 0 - µA BNC (Switch Contact) Connections The evaluation board provides BNC connections for Switch Contact A and Switch Contact B signals see Figures 2 and 3. Since the ISL54302 is a quad switch device, there are eight BNC connections to the evaluation board. U12B U12B U13A U13A U12A U12A U13B U13B U11B U11B U14A U14A U11A U11A U14B U14B Scope Probe Connections Another topic to cover before getting started is the evaluation board physical connections for waveform observations. On each schematic version, you will see a component with pins designated as leadless scope probe connections. This is not an active component but a dual pin header physically designed to accommodate connection of Active/ Differential Probes. This will minimize Ground Lead Inductance and Capacitive Loading while make waveform observations. However, the user must also be mindful of Max Voltage Limitations when using these types of probes. = LEADLESS SCOPE PROBE CONNECTION Scope Probe Test Points (TP) are positioned across most device pins and power supplies. FIGURE 2. BNC CONNECTIONS FOR ALL SWITCH CONTACTS Test Procedure First Time Setup SOFTWARE INSTALLATION AND BASIC COMMUNICATIONS CHECK Initial Power-Up Please refer to the device specifications found in the FN6592 data sheet for power-up sequencing and current requirements. Test Setup Voltages To get started, the user may wish to adopt the following voltages which provide an analog switch range that is rail-to-rail. With these conditions, the user needs only three power supplies to get started. 1. Remove the USB cable; do not have Evaluation board USB cable connected during software installation 2. Double click the provided installation file and follow the instructions for installation - Intersil_ISL54302_Installer.Exe. 3. When finished, exit the installation software. 4. Connect the USB cable between the Evaluation board and your computer. 5. Run the Evaluation software. Start\ All Programs\Intersil\ ISL54302 Demo • VSS = GND = 0V • VDD = VLOGIC = 3V 6. Click the Led’s On and Led’s Off buttons and verify the green and red LED’s on the Intersil USB board. • VPLUS = +6V to + 12V The user can now open and close each switch via the software by checking and unchecking the switch controls and click the “Write” button. 2 7. Exit the Software March 18, 2008 Application Note 1382 Test Procedure For Each Board Under Test. 6. Place an ohm meter across each set of switch contacts and open and close each switch with the software. Click the associated switch check box and click “Write” button. When the switch is closed, the resistance should be less than 5Ω, and when open, it should be greater than 500k. 1. Connect USB cable between your computer and the evaluation board. 2. Start the Evaluation Software - “Start\All Programs\Intersil\ISL54302 Demo” 7. If all switches operate, board test is successful. 3. Verify the LED’s turn on and off. (Click Led’s On/Led’s Off buttons on user screen.) Schematic Information This evaluation board supports the ISL54301 and ISL54302. In the case of the ISL54302, the Cheetah Connection is not used. This also explains why there are scope probe test points and connections made to pins designated as NC - “No Connection” on the ISL54302 version of the Evaluation board see Figure 4. 4. Apply power to the Evaluation Banana Jack,as specified in the FN6592 (ISL54302 Data Sheet) 5. Verify approximate currents (Electrical Specifications Table) SCOPE TEST POINTS TEST LEDS FIGURE 3. ISL54302 EVAL BOARD (BNC CONNECTORS ALLOW FOR AC STIMULUS) 3 March 18, 2008 Application Note 1382 VSS VLOGIC VDD 20 2B U12B 2A U12A 1B U11B 1A U11A GND SW-CTRL1 SW-CTRL2 P11-NC SW-CTRL3 SW-CTRL4 CS-LATCH VPLUS VLOGIC 13 3 12 4 11 5 3A 3B 4A 4B P11-NC U13A U13B U14A U14B R10 DNP VSS 6 7 8 9 10 SW-CTRL4 1 2 3 4 5 6 7 8 9 10 11 12 16 14 SW-CTRL3 1 2 3 4 5 6 7 8 9 10 11 12 17 2 GND USB 18 15 SW-CTRL1 J1 CS_LATCH CS_LATCH VPLUS 1 SW-CTRL2 Intersil USB Dongle Module 19 VDD DNP VSS P20-NC R4 SW-CTRL4 SW-CTRL3 SW-CTRL2 SW-CTRL1 P11-NC CHEETAH 1 2 3 4 5 6 7 8 9 10 U12B U12B U13A U13A U12A U12A U13B U13B U11B U11B U14A U14A U11A U11A U14B U14B = SCOPE PROBE CONNECTION VLOGIC VSS VDD VPLUS C5 C10 C15 C20 4.7µF 4.7µF 4.7µF 4.7µF C6 C11 C16 C21 0.1µF 0.1µF 0.1µF 0.1µF GND GND1 GND2 FIGURE 4. ISL54302 EVAL BOARD SCHEMATIC 4 March 18, 2008 Application Note 1382 ISL54302EVAL1Z Bill of Materials QTY REFERENCE DESIGNATOR DESCRIPTION MANUFACTURER MANUFACTURER PART 1 SEE LABEL-RENAME BOARD PWB-PCB, ISL5430XEVAL1Z, REVA, QFN, ROHS Intersil ISL5430XEVAL1ZREVAPCB 4 C6, C11, C16, C21 CAP, SMD, 0805, 0.1µF, 50V, 10%, X7R, ROHS MURATA GRM40X7R104K050AD 4 C5, C10, C15, C20 CAP, SMD, 0805, 4.7µF, 10V, 10%, X5R, ROHS AVX 0805ZD475KAT2A 8 U11A-U14A, U11B-U14B CONN-BNC, FEMALE, 50Ω, 4 POST VERTICAL PC MOUNT, NICKEL W/GOLD CONTACT AMPHENOL 31-5329-52RFX 2 GND1, GND2 CONN-MINI TEST PT, VERTICAL, BLK, ROHS KEYSTONE 5001 1 VSS CONN-PLUG, BANA-INSULSDRLESS, BLACK, 4mm, RA DELTRON 571-0100 1 VDD CONN-PLUG, BANA-INSUL-SDRLESS, BLUE, 4mm, ROHS, RA DELTRON 571-0200 1 GND CONN-PLUG, BANA-INSUL-SDRLESS, GREEN, 4mm, ROHS, RA DELTRON 571-0400 1 VLOGIC CONN-PLUG, BANA-INSUL-SDRLESS, RED, 4mm, RA DELTRON 571-0500 1 VPLUS CONN-PLUG, BANA-INSUL-SDRLESS, YELLOW, DELTRON 4mm, RA 571-0700 1 CHEETAH CONN-HEADER, 2x5, BRKAWY 2x36, 2.54mm, ST BERG/FCI 67996-272 5 CLK-IN, CLK-OUT, DATA-IN, CS_PULSE, DATA-OUT CONN-HEADER, 1x2, RETENTIVE, 2.54mm, ST, BERG/FCI ROHS 69190-202HLF 2 J1, USB CONN-DEVICE SKT, 1x12, SIP STRIP-100PINS, 072DIA, ROHS" ADVANCED KSS100-33GG INTERCONNECTIONS 1 U1 IC-QUAD SPST ANALOG SWITCH, 20P, QFN, 4X4, ROHS INTERSIL ISL54302IRZ 0 R4, R10 RES, SMD, 0805, DNP-PLACE HOLDER, ROHS 4 Four corners SCREW, 4-40x1/2in, PAN, NYLON, PHILLIPS, ROHS 4 Four corners STANDOFF, 4-40x3/4in, F/F, HEX, NYLON KEYSTONE 1902D 1 Place assy in bag BAG, STATIC, 8x12, ZIP LOC INTERSIL D812(212403-014) 0 INTERRUPT DO NOT POPULATE OR PURCHASE 1 a) Use one long label for RELABELS LABEL, GENERIC 0 b) RELABEL: CLK-IN as S2_CTRL LABEL, GENERIC 0 c) RELABEL: CLK-OUT as S3_CTRL 0 d) RELABEL: DATA-IN as S1_CTRL LABEL, GENERIC 0 e) RELABEL: CS_PULSE as CS_LATCH LABEL, GENERIC 0 f) RELABEL: DATA-OUT as S4_CTRL LABEL, GENERIC 1 RENAME PCB TO: ISL54302EVAL1Z LABEL, TO RENAME BRD INTERSIL ISLUSBCEVAL1ZFG LABEL, GENERIC 1 1 LABEL, FOR SERIAL NUMBER AND BOM REV # *INSTALL @ TEST PWB-ASSY, ISLUSBCEVAL1Z Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that the Application Note or Technical Brief is current before proceeding. For information regarding Intersil Corporation and its products, see www.intersil.com 5 March 18, 2008