19-5283; Rev 0; 5/10 MAXSPCSPARTAN6+ Evaluation Kit The MAXSPCSPARTAN6+ evaluation kit (EV kit) is designed to facilitate the use of Maxim ADCs and DACs with any evaluation board made for XilinxM SpartanM 6 series FPGAs. The EV kit contains the MAX11612 and MAX11040 ADCs and two cascaded MAX5135 DACs. The MAX11612 is a very-low-power, 4-channel, 2-wire, 12-bit, SAR ADC. This ADC operates with a 5V supply and has an internal reference of 4.096V. The MAX11040 is an SPIK-compatible, 4-channel, simultaneous-sampling, cascadable, 24-bit, sigma-delta ADC. The MAX5135 is the industry’s smallest, 12-bit, voltage-output DAC. Features S 12-Bit, 2-/4-Channel, SAR ADC Support (MAX11612) S 24-Bit, 4-Channel, Programmable Data Rate, Sigma-Delta ADC Support (MAX11040) S 12-Bit, 4-Channel DAC Support (MAX5135) S Connects with any Spartan 6 Evaluation Boards Through a Standard FMC VITA-57.1 LPC Connector Ordering Information PART TYPE MAXSPCSPARTAN6+ EV Kit +Denotes lead(Pb)-free and RoHS compliant. Component List DESIGNATION QTY C1 1 C2, C3, C11–C14, C21–C26, C29–C32 16 C4, C15–C20, C27, C28 9 C5, C6 2 C7–C10 4 DESCRIPTION 10FF Q20%, 25V ceramic capacitor (1206) 0.1FF Q10%, 50V ceramic capacitors (0603) 1FF Q10%, 25V ceramic capacitors (0603) 18pF Q5%, 50V C0G ceramic capacitors (0603) 0.01FF Q5%, 25V ceramic capacitors (0603) 2 47pF, 50V ceramic capacitors (0603) C35, C36 2 4.7FF Q10%, 10V ceramic capacitors (0603) D1, D2 2 Orange SMT LEDs (0603) D3, D4, D5 3 Green SMT LEDs (0603) J1 1 FMC LPC connector (VITA-57.1) J2 1 8 x 2-pin R/A header (2.54mm) J3, J4 2 8 x 2-pin headers (2.54mm) J5 1 8-pin inline receptacle, 0.1in centers J6, J7 2 3-pin headers (2.54mm) C33, C34 DESIGNATION QTY DESCRIPTION L1 1 10FH Q5% inductor (0603, 0) R1, R2, R16, R17 4 2.2kI Q5% resistors (0603) R3–R10 8 49.9I Q0.1% resistors (0603) R11–R14 4 100I Q1% resistors (0603) R15, R21–R24 5 4.7kI Q0.1% resistors (0603) R18, R19, R20 3 0I Q1% resistors (0603) U1 1 Step-down converter (6 SOT23) Maxim MAX1837EUT50#G16 U2 1 Low-power ADC (8 FMAXM) Maxim MAX11612EUA+ U3 1 Sigma-delta ADC (38 TSSOP) Maxim MAX11040GUU+ U4 1 Bidirectional level translator (12 TQFN-EP*) Maxim MAX3395EETC+ U5 1 8-channel level translator (20 TSSOP) Maxim MAX3002EUP U6, U7 2 Quad 12-bit DACs (24 TQFN-EP*) Maxim MAX5135GTG+ Y1 1 24.576MHz, 18pF crystal — 1 PCB: MAXSPCSPARTAN6+ *EP = Exposed pad. Xilinx and Spartan are registered trademarks of Xilinx. SPI is a trademark of Motorola, Inc. µMAX is a registered trademark of Maxim Integrated Products, Inc. ________________________________________________________________ Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. Evaluates: MAX5135/MAX11040/MAX11612 General Description Evaluates: MAX5135/MAX11040/MAX11612 MAXSPCSPARTAN6+ Evaluation Kit Quick Start The MAXSPCSPARTAN6+ board can be plugged in to any Spartan 6 series FPGA evaluation board. A two-step configuration is needed to use this card with the FPGA evaluation board: 1) 2) Place a shunt on pins 2-3 of header J7 (i.e., +3V3FMC to +3V3). Place a shunt on pins 2-3 of header J6 (i.e., +5VREG to +5V). Table 1. MAXSPCSPARTAN6+ Connector J2 Description J2 PIN NO. LABEL 1 +5V FUNCTION +5V, 250mA supply for external circuit 2 N.C. Not connected 3 GND Ground 4 DA0 DAC output from channel 0 of U6 (MAX5135) Now connect the MAXSPCSPARTAN6+ board to the FPGA EV kit. On power-up, LEDs D3, D4, and D5 should glow, indicating a power-up state. 5 GND Ground 6 DA1 DAC output from channel 1 of U6 (MAX5135) Detailed Description of Hardware 7 GND Ground The MAXSPCSPARTAN6+ board is loaded with Maxim’s ADCs and DACs and makes it very easy to integrate the FPGA with any analog interface. 8 DA2 DAC output from channel 2 of U6 (MAX5135) 9 GND Ground Communication with the MAX11612 10 DA3 DAC output from channel 3 of U6 (MAX5135) 11 AD1 ADC input to channel 1 of U2 (MAX11612) 12 AD0 ADC input to channel 0 of U2 (MAX11612) 13 GND I2C-compatible The MAX11612 is a 12-bit, 2-/4-channel, ADC. The FPGA can drive commands for data acquisition from the MAX11612 on the I2C slave address 0110100. The MAX11612 can work with the internal reference of 4.096V or the external reference connected at the AD3 port of J2. If internal reference is used; all 4 channels can be sampled from AD0–AD3. For more information, refer to the MAX11612 IC data sheet. Communication with the MAX11040 The MAX11040 is a 24-bit, 4-channel, SPI-compatible, sigma-delta ADC with programmable output data rate. It has an internal reference of 2.5V with Q2.2V input range. Input ports are marked as AD0-/AD0+ to AD3-/ AD3+ on J3. External reference can also be applied. The MAX11040 does simultaneous sampling and data for all 4 channels and can be acquired in one read. Ground Digital input/output connected to FMC connector at C18 14 I/O 15 AD3 ADC input to channel 3 of U2 (MAX11612) 16 AD2 ADC input to channel 2 of U2 (MAX11612) This ADC has four standard connections for SPI communication. It also has an extra signal (DRDYOUT) that interrupts the FPGA at every end-of-conversion to sample the data. For more information, refer to the MAX11040 IC data sheet. Communication with the MAX5135 The MAX5135 is a 12-bit, 4-channel, voltage output, SPI-compatible DAC. The MAXSPCSPARTAN6+ board contains two MAX5135 ICs in a cascaded configuration. The DAC channels are marked as DA0–DA3 on J2 and DA4–DA7 on J3. For more information, refer to the MAX5135 IC data sheet. 2 _______________________________________________________________________________________ MAXSPCSPARTAN6+ Evaluation Kit J3 PIN NO. LABEL Table 3. MAXSPCSPARTAN6+ Connector J4 Description FUNCTION J4 PIN NO. LABEL 1 GND Ground 2 N.C. Not connected 3 DRDY 4 N.C. Not connected 5 GPIO Digital I/O going to the FMC connector at C18 from J2* 6 N.C. Not connected 7 MOSI SPI: MOSI connected to the FMC connector at C14 from the DAC (MAX5135) and ADC (MAX11040)* Not connected 1 +5V +5V, 250mA supply for external circuit 2 N.C. Not connected 3 AD3- ADC negative input to channel 3 of U3 (MAX11040) 4 AD3+ ADC positive input to channel 3 of U3 (MAX11040) 5 AD2- ADC negative input to channel 2 of U3 (MAX11040) 6 AD2+ ADC positive input to channel 2 of U3 (MAX11040) 7 AD1- ADC negative input to channel 1 of U3 (MAX11040) 8 N.C. 8 AD1+ ADC positive input to channel 1 of U3 (MAX11040) 9 CS_AD 9 AD0- ADC negative input to channel 0 of U3 (MAX11040) 10 CS_DAC 10 AD0+ ADC positive input to channel 0 of U3 (MAX11040) 11 DA5 DAC output from channel 1 of U7 (MAX5135) 12 DA4 DAC output from channel 0 of U7 (MAX5135) 13 GND Ground 14 N.C. Not connected 15 DA7 DAC output from channel 2 of U7 (MAX5135) 16 DA6 DAC output from channel 2 of U7 (MAX5135) FUNCTION DRDYOUT of MAX11040 going to the FMC connector at C26* ADC (MAX11040) CS connected to the FMC connector at C11* DAC (MAX5135) CS connected to the FMC connector at C22* 11 SCLK SPI: SCLK connected to the FMC connector at C10 and going to the DAC (MAX5135) and ADC (MAX1100)* 12 N.C. Not connected 13 MISO SPI: MISO connected to the FMC connector at C15 and going to the DAC (MAX5135) and ADC (MAX1100)* 14 SCL 15 +3V3USB 16 SDA I2C: SCL connected to the FMC connector at C30 and going to the ADC (MAX11612)* Not connected I2C: SDA connected to the FMC connector at C31 and going to the ADC (MAX11612)* *Connected with J4 for probing only. _______________________________________________________________________________________ 3 Evaluates: MAX5135/MAX11040/MAX11612 Table 2. MAXSPCSPARTAN6+ Connector J3 Description Evaluates: MAX5135/MAX11040/MAX11612 MAXSPCSPARTAN6+ Evaluation Kit Figure 1a. MAXSPCSPARTAN6+ EV Kit Schematic (Sheet 1 of 4) 4 _______________________________________________________________________________________ MAXSPCSPARTAN6+ Evaluation Kit Evaluates: MAX5135/MAX11040/MAX11612 Figure 1b. MAXSPCSPARTAN6+ EV Kit Schematic (Sheet 2 of 4) _______________________________________________________________________________________ 5 Evaluates: MAX5135/MAX11040/MAX11612 MAXSPCSPARTAN6+ Evaluation Kit Figure 1c. MAXSPCSPARTAN6+ EV Kit Schematic (Sheet 3 of 4) 6 _______________________________________________________________________________________ MAXSPCSPARTAN6+ Evaluation Kit Evaluates: MAX5135/MAX11040/MAX11612 Figure 1d. MAXSPCSPARTAN6+ EV Kit Schematic (Sheet 4 of 4) _______________________________________________________________________________________ 7 Evaluates: MAX5135/MAX11040/MAX11612 MAXSPCSPARTAN6+ Evaluation Kit Figure 2. MAXSPCSPARTAN6+ Component Placement Guide—Component Side Figure 4. MAXSPCSPARTAN6+ PCB Layout—Component Side Figure 3. MAXSPCSPARTAN6+ Component Placement Guide—Solder Side Figure 5. MAXSPCSPARTAN6+ PCB Layout—Solder Side 8 _______________________________________________________________________________________ MAXSPCSPARTAN6+ Evaluation Kit REVISION NUMBER REVISION_ DATE 0 5/10 DESCRIPTION Initial release PAGES_ CHANGED — Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2010 Maxim Integrated Products 9 Maxim is a registered trademark of Maxim Integrated Products, Inc. Evaluates: MAX5135/MAX11040/MAX11612 Revision History