MAX3710 Evaluation Kit Evaluates: MAX3710 General Description Features The MAX3710 evaluation kit (EV kit) is an assembled S Software Control of the MAX3710 demonstration board that provides electrical and opti- S Power Supplied Through USB or External cal evaluation of the MAX3710 125Mbps to 2.5Gbps Connection integrated limiting amplifier/burst mode laser driver with S Connection for Lasers in TO Packages dual-loop power control. The controlling software com- municates with the EV kit through the USB port of the EV Kit Contents included card and provides simplified control of all func- tions of the MAX3710. The EV kit can be fully powered S MAX3710 EV Kit Board by the USB port, or the user can choose to power the MAX3710 by an external 3.3V supply while the USB port Ordering Information appears at end of data sheet. supplies the included HFRD46-1 USB daughter card. The laser connection on the EV board allows attachment of lasers in TO-header packages. Component List DESIGNATION QTY DESCRIPTION DESIGNATION QTY DESCRIPTION C1, C4, C5, C8, 1000pF 10% ceramic Ferrite bead (0402) 7 L1 1 C26, C27, C38 capacitors (0402) Murata BLM15HG102 1FF 10% ceramic capacitors L3, L5, L6 3 4.7FH 20% inductors C2, C3, C6, C7 4 (0402) Q1, Q2, Q3 3 npn transistors 1pF 0.25pF ceramic R1, R3, R19 3 4.7kI 5% resistors (0402) C9 1 capacitor (0402) R2, R26, R32, 6.8pF 5% ceramic capacitor C10 1 R35R38, 11 Not installed, resistors (0402) R43R46 22pF 10% ceramic C11 1 R4, R51 2 10.0kI 1% resistors (0402) capacitor (0402) R5, R6, R39R42 6 0I resistors (0402) C12, C13, C28, 0.01FF 10% ceramic 4 C30 capacitors (0402) R7 1 10I 5% resistor (0402) 8.2pF 0.25pF ceramic R8 1 6.04kI 1% resistor (0402) C14 1 capacitor (0402) R9 1 470I 5% resistor (0402) 100pF 5% ceramic capacitor R10 1 82I 5% resistor (0402) C15 1 (0402) R12 1 39I 5% resistor (0402) 10FF 20% ceramic capacitors C23, C29 2 R14 1 22I 5% resistor (0402) (0603) R15 1 27I 5% resistor (0402) C24, C25, C31, 0.1FF 10% ceramic 5 R17, R50, R52R55 6 1.00kI 1% resistors (0402) C35, C37 capacitors (0402) R24, R25 2 100I 1% resistors (0402) D1, D2, D3 3 Red LEDs S1, S2 2 SP3T switches D4, D7 2 Green LEDs D5 1 Laser, user installed Limiting amplifier/laser driver U1 1 (24 TQFN-EP*) J1J8 8 SMA connectors, edge mount Maxim MAX3710ETG+ J9, J10 8 SMB connectors, PC mount EEPROM J13, J15, TP1 U2 1 Atmel TP6, TP9TP13, 19 Test points TP17, TP18, TP19, 1 HFRD46-1 USB interface card TP21, TP22, TP25 PCB: MAX3710 EVALUATION 1 J14 1 Micro-pitch connector BOARD+, REV A JU19, JU20, JU21 3 2 -in headers, 0.1in centers +Denotes a lead(Pb)-free/RoHS-compliant package. JU26 1 3-pin header, 0.1in centers *EP = Exposed pad. For pricing, delivery, and ordering information, please contact Maxim Direct at 19-6010 Rev 1 10/12 1-888-629-4642, or visit Maxim Integrateds website at www.maximintegrated.com.MAX3710 Evaluation Kit Evaluates: MAX3710 2) Determine whether to connect a high-speed source Quick Start to the BEN inputs (J5 and J6), or whether to manually control the BEN input. Note: In the following section, software-related items are identified by bolding. Text in bold refers to items directly a) If using the input SMA connectors, the default EV kit from the EV kit software. Text in bold and underlined components are set up for a CML or LVDS source. refers to items from the Windows operating system. If you have a different source or would like oper- ate the EV kit single-ended, refer to Figure 3 in the Initial Setup MAX3710 IC data sheet for information on how to 1) Install the MAX3710 EV kit software on a computer configure the BEN input. by attaching the USB daughter card to the computer using the supplied USB cable. After the USB device b) If you choose manual control, remove the differen - has been detected and installed by the operating sys- tial input resistor at R25 and add a 10kI resistor tem, a flash drive becomes available in the Devices at R26. Doing so allows direct control of the BEN with Removable Storage section of My Computer. input by switch S2, or by the software GUI if the Search the flash drive for the MAX3710 EV kit.ZIP file. switch S2 is set to the mid position. Copy this file to the desktop or another known folder 3) Connect a 50I source to TIN+ and TIN- (J7 and J8). and unzip the file. Locate the newly created MAX3710 Set the source differential amplitude to 500mV . Set P-P EV kit folder and run setup.EXE. the source common-mode voltage to 2V or use exter- 2) After installation is complete, follow this path to nal DC-blocks. start the program: Start All Programs Maxim 4) If BEN is to be operated through the SMA connectors, Integrated Products MAX3710 EV Kit GUI. The connect a 50I source to BEN+ and BEN- (J5 and J6). software is a graphical user interface, or GUI, meant Set the source differential amplitude to 500mV and P-P to simplify control of the MAX3710. the common-mode voltage to 2V. See Figure 1 of the 3) A USB daughter card is included with the MAX3710 MAX3710 IC data sheet for more information on the EV kit (HFRD46-1). Insert this card into the connector acceptable differential and common-mode voltages J14. at BEN. 4) Set jumper on JU26 to the desired power supply 5) Connect the output from the TOSA to an opti- option (USB or external supply). cal receiver (optical-to-electrical converter or optical input head on an oscilloscope). 5) If an external power supply is used, set the voltage to 3.3V, the current limit to 300mA, and connect the 6) All controls of the MAX3710 are available in the soft- supply to the board. ware. Fault and warning indicators are displayed on the right side of the GUI window. When a hard fault 6) Connect the computer to the USB daughter card with has occurred the part goes into latched shutdown. a USB cable (A-male to Mini-B-Male). Several LEDs The source of the fault should be removed and the should illuminate indicating that the USB source is DISABLE button should be toggled to reset the part. powered. Click the Initialize button in the software to initiate communication to the EVkit. When communi- 7) The registers contain a default setting and can be cation is established the Status indicator on the GUI read using the Block Read All button. For detailed turns green. register functions, refer to the MAX3710 IC data sheet. 8) Note that the GUI software automatically sets the Transmitter Evaluation MAX3710 into setup mode before writing to a regis- For transmitter evaluation follow these steps: ter. If the Enable Block Write checkbox is checked, 1) Solder a laser to connection D5. See Figure 1 for more multiple writes can be buffered by the GUI and written information about the laser connection. all at once when the TX Block Write or Block Write All button is clicked. Windows is a registered trademark and registered service mark of Microsoft Corporation. Maxim Integrated 2