Application Note 1775 Author: Navid Mostafavi ISL59605-SPI-EVALZ/ISL59960-SPI-EVALZ Evaluation Board (with Serial Interface) Operation (Rev 5.0) Description Initial Set-Up The ISL59605-SPI-EVALZ/ISL59960-SPI-EVALZ board allows evaluation of the ISL5960x (MegaQ™) or ISL59960 (960MegaQ™) parts, and provides a reference schematic and PCB layout of a MegaQ™/960MegaQ™ implementation on a 4-layer PCB. In addition to the MegaQ™/960MegaQ™ equalization path, the board features a USB interface that allows access to, and control of, the MegaQ™/960MegaQ™ internal configuration registers, enabling several features that are not available when using the stand-alone configuration (see the datasheets for more details). This application note is for revision 5.0 of the ISL59605-SPI-EVALZ board. For revisions 1.0 to 4.0 of the evaluation board, see AN1588. The board revision number is found in the top right corner on the top side of the board. This application note describes how to set-up and use this evaluation board in a stand-alone configuration, then explains how to install the software and use the Windows GUI to read and write to MegaQ™/960MegaQ™’s internal registers. Power Connections The power connection is located at the top left of the evaluation board (see Figure 1). The board requires a +5V DC power supply capable of supplying at least 150mA. Because of the high amount of high-frequency gain required to equalize long cables, excessive noise on the power supply may introduce noise on the output signal or cause difficulty locking at longer distances. Power supplies with linear regulators are preferable to switching regulators, however, switching supplies may work acceptably well if they are adequately filtered. Jumpers JP1 is located on the bottom left side of the evaluation board. It needs to be in place for power to get to MegaQ™/960MegaQ™ and the LEDs. The jumper may be removed and replaced with an ammeter to measure the current consumed by MegaQ™/960MegaQ™ and the LEDs. JP1 must be shorted (either with a jumper or an ammeter) for the evaluation board to function! December 20, 2012 AN1775.1 1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 | Copyright Intersil Americas Inc. 2012. All Rights Reserved Intersil (and design) and MegaQ™ are trademarks owned by Intersil Corporation or one of its subsidiaries. All other trademarks mentioned are the property of their respective owners. Application Note 1775 The large 3x8 header block is described in the next section. Output Connections The JTAG header on the upper left (H4) is used to program the microcontroller during production and is not used when operating the evaluation board. Do not connect anything to the JTAG header. Standard 75Ω composite video is available at the “VIDOUT1-75” and “VIDOUT2-75” BNC connectors on the right, as well as the 2 test pins between R24/R25 and the BNC outputs. Input Connections and Settings for Cat x Cable Unshielded twisted pair (UTP) signals arrive via the RJ-45 connector on the left. The input signal can be on any arbitrary combination of pins, though it should usually be one of the standard Cat x pairs of 1 and 2, 3 and 6, 4 and 5, or 7 and 8. The 3x8 header block to the right of the RJ-45 jack is used to assign which Cat x pin goes to the positive MegaQ™/960MegaQ™ input (in Figure 1, pin 7), and which goes to the negative input (pin 8). The cable type selection switch (S1) to the right of the jumper block should be switched to “CAT5” (as shown in Figure 1). Do not attach a coax cable while trying to receive a signal over Cat x. Input Connections and Settings for Coax Cable Coax signals are connected through the “COAX IN” BNC connector on the upper left. When using coax signals, set the cable type selector switch (S1) to “COAX” and ensure that no Cat x cables are attached to the RJ45 connector. Switch Settings The red DIP switch toward the bottom of the board is used to put MegaQ™/960MegaQ™ in its different operational modes (recommended settings are underlined): • Continuous/Lock until Reset: When set to “Continuous”, MegaQ™/960MegaQ™ will continuously update the EQ settings. When set to “Lock until Reset”, the FREEZE input is connected to the LOCKED output so that device will stop updating once the first optimum solution is reached. “Lock until Reset” is the recommended mode of operation if the SPI interface is not utilized. Set to “Continuous” to allow software control of the locking modes. See the datasheet for more detailed information on the locking modes. • COLOR-AUTO/COLOR-MAN: Determines whether the COLOR pin is floating (“Auto”) or set by the “COLOR-0/COLOR-1” switch (“Man”). When set to “Auto”, MegaQ™/960MegaQ™ will automatically determine if the incoming signal is color or monochrome. If set to “Man” (manual) the polarity of the COLOR pin is determined by the “COLOR-0/COLOR-1” switch. The IN+ and IN- test points near U1 can be used to view the input signals at the input to the chip. +5V Power Connection USB Input COAX Input Video Outputs CATx (UTP) Input CATx Jumper Block Cable Type Selection Configuration Switches FIGURE 1. EXTERNAL CONNECTIONS AND SWITCHES 2 December 20, 2012 AN1775.1 Application Note 1775 • INV-AUTO/INV-MAN: Determines whether the INVERT pin is floating (“Auto”) or set by the “INV-0/INV-1” switch (“Man”). When set to “Auto” MegaQ™/960MegaQ™ will automatically determine the polarity of the incoming signal. If set to “Man” (manual) the polarity of the INVERT pin is determined by the “INV-0/INV-1” switch. Software Installation • FREEZE-0/FREEZE-1 Slide the switch left to the “0” position to put the part in “Continuous Update” mode. The “1” position freezes the equalizer in its current state. This switch is ignored when the “Continuous/Lock until Reset” switch is set to “Lock until Reset”. For software control of the locking mode this switch should be set to “0”. See the datasheet for more detailed information on the locking modes. Notes • EQ DIS-0/EQ DIS-1: This can be used to disable the EQ so that an external source can drive a signal over the cable. This switch should be set to the “0” position for normal operation. • COLOR-0/COLOR-1: Slide the switch left to the “0” position to force monochrome (sync tip) equalization mode. Slide the switch right to the “1” position to force color-burst equalization mode. This switch is ignored when the “COLOR-AUTO/COLOR-MAN” switch is set to the “Auto” position. • INV-0/INV-1: Slide the switch left to the “0” position for nominal input signal polarity (positive signal on IN+ and negative signal on IN-). Slide the switch right to “1” position for inverted polarity (positive signal on IN- and negative signal on IN+). This switch is ignored when the “INV-AUTO/INV-MAN” switch is set to the “Auto” position. LEDs There are 5 LEDs at the bottom right of the board that indicate the current state of the EQ_DIS, COLOR, INVERT, LOCKED, and FREEZE signals. When any LED is illuminated then the corresponding signal is a logic high. When the LEDs are illuminated, they will draw additional supply current from the 5V supply. The next section explains how to install the GUI (Graphical User Interface) software, configure the hardware for software control, attach the board to the PC via USB, and use the GUI to control MegaQ™/960MegaQ™. Some conservative antivirus software may issue an alert during installation. If this occurs, and the software was obtained directly from Intersil then disable the antivirus software for the duration of the installation. This software was developed on and will work with 32-bit Windows XP and 32-bit and 64-bit Windows 7 platforms. The ISL5960x Evaluation Software is designed to work with the entire MegaQ™ family from the ISL59601 through the ISL59605. The ISL59960 Evaluation Software is designed to work with the ISL59960. Some features supported by the software, such as longer equalization lengths and the noise filtering option in register 0x05, are only available on some versions of MegaQ™. This documentation contains screen captures of the software at the time this manual was written. Subsequent software versions may appear different. Software Installation The ISL59605-SPI-EVALZ/ISL59960-SPI-EVALZ software may be installed from a CD-ROM accompanying the hardware or from an installer file downloaded from the Intersil web site. For simplicity the following installation instructions will refer only to the ISL5960x software. The ISL59960 software can be installed and used in exactly the same manner. Launch the "ISL5960x_GUI_Installer_x_x.exe" file (x_x represents version number) and follow the instructions. The default installation will add an “Intersil” directory to the “Start Menu/Programs” tree. That directory will contain a shortcut to the ISL5960x executable and an uninstaller. The default install option installs the main program files in the C:\Program Files\Intersil\ISL5960x Evaluation Software directory, however the location can be customized if desired. FIGURE 2. INSTALLER WINDOW 3 December 20, 2012 AN1775.1 Application Note 1775 Press Next to continue to the license agreement. FIGURE 5. START MENU FOLDER FIGURE 3. LICENSE AGREEMENT Press Next to create the Intersil folder in the Start Menu. Read the license agreement, choose to accept (or not accept) the license agreement, then click Next. FIGURE 6. BEGIN INSTALLATION Press Install to copy all the necessary files onto the PC. FIGURE 4. INSTALLATION DIRECTORY By default, the installer will put the evaluation software under C:\Program Files\Intersil\ISL5960x Evaluation Software directory. To use a different directory, select the Browse button. Press Next to continue to the Start Menu Folder screen. FIGURE 7. OCX FILE INSTALLATION Click Yes to install any required Windows OS files. 4 December 20, 2012 AN1775.1 Application Note 1775 Using the Software Launch the software (the default location is Start Menu/Programs/Intersil/ISL5960x_GUI for the MegaQ™ and Start Menu/Programs/Intersil/ISL59960_GUI for the 960MegaQ™ ). After the program has launched, you should see the following screen: FIGURE 8. COMPLETION SCREEN Click Finish to complete installation. Re-boot the PC if requested. Hardware Setup After the software has been installed, configure and power the evaluation board for connection to the PC. 1. Verify that all the switches are in the correct position as described in “Switch Settings” on page 2. Ensure that the “Continuous/Lock until Reset” switch is set to “Continuous” and that the “FREEZE-0/FREEZE-1” switch is set to “0” to allow the software to set the desired locking mode. FIGURE 10. BASIC VIEW ISL5960x/ISL59960 Basic View Basic View is a simple interface for controlling the Equalization Mode. 2. Verify that JP1 is shorted (either with a jumper or an ammeter) so power will be applied to the IC. 3. Connect power to the +5V input power jack. 4. Connect the evaluation board to the PC with a USB cable. Click Finish to complete the installation. On XP systems, a pop-up message may appear displaying the status of the ISL5960X/ISL59960 hardware: FIGURE 9. HARDWARE INSTALLED NOTIFICATION FIGURE 11. EQUALIZATION MODE SELECTION Using this tab, the user can select between the four equalization modes. The first three modes are various forms of automatic equalization, the last is manual length control (not a particularly useful feature, since the auto EQ almost always equalizes as well as or better than manual, but it may be of some experimental interest): 1. Continuous Update (also available in stand-alone) 2. Lock until Signal Loss 3. Lock until Reset (also available in stand-alone) 4. Manual Length When the “Manual Length” mode is selected, the slider becomes active and the equalization may be manually adjusted to match the length of cable. In manual mode, the cable type also needs to be selected. The cable type can be set to CAT5/6. 5 December 20, 2012 AN1775.1 Application Note 1775 ISL5960x/ISL59960 Register View This tab allows user to directly see and modify the contents of the MegaQ™/960MegaQ™ registers. To update the register contents, click Read All Registers. FIGURE 12. MANUAL MODE - CAT5/6 Or the cable type can be set to steel core coax. FIGURE 14. REGISTER VIEW FIGURE 13. MANUAL MODE - STEEL CORE COAX For CAT5/6, length settings longer than the part is capable of (e.g., 4000 feet with an ISL59601) will have no effect - a part can not equalize farther than the distance it is designed for. To change a register value, simply type the desired hexadecimal number into the appropriate box. To change both digits of the 2-digit hex number, select both digits with the mouse or by double-clicking inside the text box ( ), then quickly type both digits of the desired value. If you type too slowly (more than ~1 second between the first and second digit), the first digit typed will become the lower nibble, and the higher nibble will be 0. To change one nibble using the keyboard, select the high nibble ( ) or the low nibble ( ) and type the new hexadecimal value. It is not necessary to press the Enter button; the software will automatically send the new value to the ISL59605-SPI-EVALZ Evaluation board. You can also increment and decrement the register values using the keyboard: • Up Arrow Key: Increment by 1 • Down Arrow Key: Decrement by 1 • Page Up Key: Increment by 16 (increment high nibble by 1) • Page Down Key: Decrement by 16 (decrement high nibble by 1) 6 December 20, 2012 AN1775.1 Application Note 1775 ISL5960x/ISL59960 Detailed Register View Saving and Loading Registers Right-clicking on any register label brings up a detailed bit-level description of each register. If the register has individual bit functions, they will come up as check boxes that can be checked or unchecked. To save all the registers values to a text delimited file, select the “Save Registers” option from the File menu. FIGURE 17. SAVING A REGISTER SET FIGURE 15. PIN OVERRIDE Enter a filename and extension when prompted, and the program will save the file with that extension. If the register has grouped bits, they come up as text boxes that can be written to with the desired hex values: FIGURE 16. EQUALIZATION CONTROL After the desired data has been entered, click “Update” to send the data to the device. The register view will be automatically updated. FIGURE 18. REGISTER SAVE DIALOG Once saved, register files can be loaded using the “Load Registers” function. FIGURE 19. LOADING A REGISTER SET 7 December 20, 2012 AN1775.1 Application Note 1775 Please refer to the ISL5960X datasheet for a more detailed description of the registers. After rebooting the PC, please verify that the following files are in the following locations: Related Documents • For MegaQ™: ISL5960x Eval.exe in C:\Program Files\Intersil\ISL5960X Evaluation Software • ISL5960x Datasheet (FN6739) • ISL59960 Datasheet (FN8358) • ISL59605-Catx-EVZ/ISL59960-Catx-EVZ Evaluation Board (AN1780) • ISL59603-Coax-EVZ/ISL59960-Coax-EVZ Evaluation Board (AN1776) Troubleshooting • For 960MegaQ™: ISL59960 Eval.exe in C:\Program Files\Intersil\ISL59960 Evaluation Software • COMDLG32.ocx, TABCTL32.ocx, COMCTL32.ocx in C:\Windows\System32 If you see the dialog, open the Windows Control Panel. Double-click on the “System” icon, select the “Hardware” tab, then click on Device Manager: Analog (ISL5960x/ISL59960) Troubleshooting 1. Make sure all the switches are in the correct position for the intended operation. 2. Verify that JP1 is shorted (either with a jumper or an ammeter) so that power will be applied to the IC. 3. Verify that there is 5V across the power supply pins, and that the board is drawing at least 80mA of current. If you are seeing less current, JP1 may be open or the “EQ DIS” switch may be set to the wrong position. 4. Probe the IN+ and IN- pins for a video signal. For Cat x inputs, you should see a signal on both inputs (with IN- being the inverse of the signal on IN+). For coax inputs, you should see a signal on IN+ and a DC voltage on IN-. If you do not see the expected signals, inspect your cables, video sources, etc. For Cat x signals, verify that the jumpers in the jumper block are set correctly. If you are not certain which pair of Cat x wires is carrying the signal, you can probe the middle row of 8 pins in the jumper block, where you should see the signal on 2 of them. 5. If you see the correct input signal on IN+ and IN- but are still not seeing a valid output signal, set the “INV Auto/INV Man” switch to the “Man” position and set the “INV-0/INV-1” switch such that a valid signal appears at the output. FIGURE 21. DEVICE MANAGER There should be a “Human Interfaces Devices” entry, with a “HID-compliant device” sub category. Right click on the entry and select “Properties”. In the “Properties” window select the “Details” tab and select “Device Instance Id” from the drop down menu. You should see the following screen: 6. Verify that the “Continuous/Lock until Reset” switch is in the correct position. “Lock until Reset” for hardware mode and “Continuous” for software control. 7. Probe the VIDEO OUT BNC connector with a scope to see if there is a video signal. If you do not see a composite video signal at the output, and there is a signal present at the input, then the device may be damaged in which case please contact your vendor. Software and USB Driver The software should be able to communicate with the evaluation board as soon as it is launched. If there is a communication problem, the following dialog box may be displayed: FIGURE 20. DEVICE NOT CONNECTED 8 FIGURE 22. DEVICE INSTANCE ID The window should display the Vendor and Product ID numbers (VID and PID) as VID_xxxx and PID_xxxx where “xxxx” represents the number. The ISL59605-SPI-EVALZ/ISL59960-SPI-EVALZ has a Vendor ID (VID) of 0x09AA and a Product ID (PID) of 0x2022. If these numbers are present then this indicates that the driver is properly installed and is communicating with the evaluation board. December 20, 2012 AN1775.1 Application Note 1775 If the device is not visible in Device Manager, or there are any error messages, try the following: • Verify that the evaluation board has power and the USB cable is connected to the evaluation board and the PC. • Disconnect then reconnect the USB cable. You max hear 2 tones from the PC's speakers when the USB device is enumerated. • Cycle power to the board. • Close all instances of the ISL5960x application and restart the software. Restart the PC if necessary. • If none of this works, try installing the software on a different PC isolate the cause to either the PC or the evaluation board. 9 December 20, 2012 AN1775.1 ISL59605-SPI-EVALZ/ISL59960-SPI-EVALZ Evaluation Board Schematic SEN SCK SD R1 1k POWER 32 31 30 29 28 27 26 25 uC Data OUT 3 4 TP6 uC +3.3V 1 3 5 7 9 C5 C1 0.1uF 1.0uF R5 100k C6 0.1uF R16 R9 R10 R11 0.0 0.0 0.0 +5V D1 1N4148 R6 100k R7 100k U2, SW1, and associated components are for evaluation use and usually not needed in a production design. R13 100k 2 0 15 1.0uF 5 IN+ IN- DIFF to SE + CLAMP 9 SW 4PDT 1 2 3 4 5 6 7 8 CAT5 RJIN- SO3 STANDOFF SO4 STANDOFF 1 10 11 0 8 11 1 SW1G 7 10 1 SW1H 9 1 13 EP GND VIDOUT1-75 75.0 300 R24 C2 1500pF 75.0 OUT2-75 VIDOUT2-75 +5V C GND C18 47nF R23 CFB 12 C15 IN- BC +5V LED Status Indicators U3 0.1uF R18 1k FREEZE 1 2 LOCKED 3 4 D2 FREEZE_LED R19 1k R3 1k R4 1k R22 1k Z2 BLUE C* 5.6pF LEAD FREE RoHS COMPLIANT GREEN INVERT SO2 STANDOFF INVERTM 0 14 R25 13 +5V H3 HEADER8 9 SW1F 74HC04D *Optional capacitor used to balance the capacitance of the differential lines for UTP solution and prevent noise at long lengths. The issue is common mode noise: at high equalizations the CMRR is critical and an unbalanced input degrades CMRR. This capacitor balances the extra trace capacitance added to the IN+ line from the connection to D1, C3, R14 (and any inbalance from the transorbs). This capacitor is only needed for dual UTP-coax applications. 5 6 ORANGE EQ_DIS 9 8 RED COLOR 11 10 D3 LOCKED_LED D4 INVERT_LED D5 EQ_DIS_LED D6 COLOR_LED YELLOW 13 INTERSIL INC. 12 GND 8 8 1 FREEZE LOCKED EQ_DIS COLOR INVERT 16 10 7 8 9 S1C 0.1uF 15 SW1C 0 CFB COAX 7 COLORM 12 VIDEO OUT 17 GND GNDIN GNDo 14 1 1.0uF EQ_DISM 5 0 CFB IN- 0 3 VREF EQ 6 R21 49.9 IN- 3 6 OUT1-75 4 R20 49.9 4 12 1 7 18 19 SEN SD DIGITAL BLOCK IN+ 3 C17 0.47uF ISL59600 FREEZE LOCKED EQ_DIS COLOR INVERT IN+ C8 C4 SCK R17 0.0 ISL5960X Equalizer C7 2 SW1B 14 CAT5 MINUS PROTECTION RJ-45 Pin-Assignment Headers SW 4PDT Z1 R8 1k R15 300 COAX_ACGND CAT5 IN 20 2 PLUS PROTECTION COAXIN COAX IN 6 16 0 1 SWITCH-DIP16 VREF U2 5 COAX SW 4PDT CAT5 SEN 1 SW1A SW1E 5 6 C11 0.1uF 0.1uF S1B 4 IN+ BC FREEZEM SCK C10 S1A 2 3 1 100k VREF VDD1 1 RJ1 RJ2 RJ3 RJ4 RJ5 RJ6 RJ7 RJ8 SO1 STANDOFF U2 generates low impedance 1s or 0s without drawing large static current. +5V 11 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 H2 HEADER8 COAX BNC Input for Coax Cable Con2 SHIELD GND Title 7 74HC04D Size: B Revision: Application Note 1775 RJ-45 Pin-Assignment Headers A + C14 4.7uF Z3 Zener 6V +5V_Filtered COAX_PU SHIELD R12 GND SPI Interface Pins R14 10k Cable Type Switch Selects Cat x or Coax Input RJIN+ 1 2 3 4 5 6 7 8 +5V_Filt +5V_Filtered 1.0 SD H1 A +5V U4 +5V_Filtered C3 0.1uF RJ-45 Input for CAT5 +5V C8051F320_2 C2D HEADER5X2 HEADER8 1Amp 3 5V, 110mA Power Input JP1 +5V Current Sense (NC) 24 23 22 21 20 19 18 17 P1.2 P1.3 P1.4 P1.5 P1.6 P1.7 P2.0 P2.1 GND 1k 2 4 6 8 10 C16 1.0uF uC for SPI Interface FUSE 9 10 11 12 13 14 15 16 H4 +5V_IN P0.1 P0.0 GND D+ DVDD REGIN VBUS POWER 1 +5V_IN 2 +5V 10 USB Connector R2 1 2 3 4 5 6 7 8 +3.3V USB +3.3V P0.2 P0.3 P0.4 P0.5 P0.6 P0.7 P1.0 P1.1 R28 1k USB+5V DD+ F1 14 1 2 2 VDD2 5 5V+ DSHELL D+ GND /RST/C2CK P3.0/C2D P2.7 P2.6 P2.5 P2.4 P2.3 P2.2 J7 U1 uC Data IN TP5 USB +5V +5V PW1 +5V 1 December 20, 2012 AN1775.1 Application Note 1775 ISL59605-SPI-EVALZ/ISL59960-SPI-EVALZ Board Layout FIGURE 23. PCB TOP LAYER WITH SILKSCREEN 11 December 20, 2012 AN1775.1 Application Note 1775 ISL59605-SPI-EVALZ/ISL59960-SPI-EVALZ Board Layout (Continued) FIGURE 24. PCB BOTTOM LAYER WITH SILKSCREEN 12 December 20, 2012 AN1775.1 Application Note 1775 ISL59605-SPI-EVALZ/ISL59960-SPI-EVALZ Board Layout (Continued) FIGURE 25. PCB TOP LAYER 13 December 20, 2012 AN1775.1 Application Note 1775 ISL59605-SPI-EVALZ/ISL59960-SPI-EVALZ Board Layout (Continued) FIGURE 26. PCB BOTTOM LAYER 14 December 20, 2012 AN1775.1 Application Note 1775 ISL59605-SPI-EVALZ/ISL59960-SPI-EVALZ Board Layout (Continued) FIGURE 27. PCB INTERNAL PLANE 1 (GROUND) 15 December 20, 2012 AN1775.1 Application Note 1775 ISL59605-SPI-EVALZ/ISL59960-SPI-EVALZ Board Layout (Continued) FIGURE 28. PCB INTERNAL PLANE 2 (POWER) 16 December 20, 2012 AN1775.1 Application Note 1775 Bill of Materials QUANTITY COMPONENT NAME 8 J1, J4, J8, J5, J6, J12, J13, J15, J16 1 PW1 2 J2, J3 1 JP1 5 TP2, TP5, TP6, TP14, TP15 1 H4 3 H1, H2, H3 1 C4 4 R9, R10, R11, R17 5 C5, C6, C10, C11, C15 VALUE FOOTPRINT HEADER-1 PIN +5V POWER CONN +5V Current JUMPER-2 PIN POWERPOST TESTPOINT HEADER5X2 HEADER-10P HEADER8 HDR8 0.1µF 0402 0.0 0603 0.1µF 0603 1 C3 0.33µF 0603 1 C17 0.47µF 0603 1 R12 1.0 0603 4 C1, C7, C8, C16 1.0µF 0603 5 R5, R6, R7, R13, R16 100k 0603 1 R14 10k 0603 1 C2 9 R1, R2, R3, R4, R8, R18, R19, R22, R28 1500pF 0603 1k 0603 2 R24, R25 75.0 0603 2 R15, R23 300 0603 1 C18 47nF 0603 2 R20, R21 49.9 0603 1 F1 Fuse 0603 1 C14 4.7µF 3528 2 Z1, Z2 CPDFR5V0 1005 1 D1 1N4148 SOD-323F 1 Z3 Zener SOD-123 1 U2 ISL59600 QFN20 4MM 2 U3, U4 1 U1 1 D2 BLUE LED-0805 1 D6 YELLOW LED-0805 1 D4 ORANGE LED-0805 1 D3 GREEN LED-0805 1 D5 RED LED-0805 1 J7 USB USB TYPEB 1 Con2 CAT5 IN Modular-8S 1 P2 COAX IN BNC-EDGE 2 P1, J14 4 SO1, SO2, SO3, SO4 1 S1 1 SW1 74HC04D TSSOP-14 C8051F320 LQFP32 VIDOUT1-75 BNC-EDGE STANDOFF STANDOFF SW 4PDT SWITCH 4PDT SLIDE MMS42 SWITCH-DIP16 SWITCH-DIP8X2 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 17 December 20, 2012 AN1775.1