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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.
MAXSPCSPARTAN6+ Evaluation Kit
Evaluates: MAX5135/MAX11040/MAX11612
General Description
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
19-5283; Rev 0; 5/10
+Denotes lead(Pb)-free and RoHS compliant.
Component List
*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.
PART TYPE
MAXSPCSPARTAN6+ EV Kit
DESIGNATION QTY DESCRIPTION
C1 1 10FF Q20%, 25V ceramic
capacitor (1206)
C2, C3,
C11–C14,
C21–C26,
C29–C32
16 0.1FF Q10%, 50V ceramic
capacitors (0603)
C4, C15–C20,
C27, C28 91FF Q10%, 25V ceramic
capacitors (0603)
C5, C6 2 18pF Q5%, 50V C0G ceramic
capacitors (0603)
C7–C10 4 0.01FF Q5%, 25V ceramic
capacitors (0603)
C33, C34 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)
DESIGNATION QTY DESCRIPTION
L1 1 10FH Q5% inductor (0603, 0)
R1, R2, R16,
R17 42.2kI 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+
MAXSPCSPARTAN6+ Evaluation Kit
Evaluates: MAX5135/MAX11040/MAX11612
2 ______________________________________________________________________________________
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) Place a shunt on pins 2-3 of header J7
(i.e., +3V3FMC to +3V3).
2) Place a shunt on pins 2-3 of header J6
(i.e., +5VREG to +5V).
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.
Detailed Description of Hardware
The MAXSPCSPARTAN6+ board is loaded with Maxim’s
ADCs and DACs and makes it very easy to integrate the
FPGA with any analog interface.
Communication with the MAX11612
The MAX11612 is a 12-bit, 2-/4-channel, I2C-compatible
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.
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 configura-
tion. 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.
Table 1. MAXSPCSPARTAN6+ Connector
J2 Description
J2 PIN NO. LABEL FUNCTION
1 +5V +5V, 250mA supply for external
circuit
2 N.C. Not connected
3 GND Ground
4 DA0 DAC output from channel 0 of U6
(MAX5135)
5 GND Ground
6 DA1 DAC output from channel 1 of U6
(MAX5135)
7 GND Ground
8 DA2 DAC output from channel 2 of U6
(MAX5135)
9 GND Ground
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 Ground
14 I/O Digital input/output connected to
FMC connector at C18
15 AD3 ADC input to channel 3 of U2
(MAX11612)
16 AD2 ADC input to channel 2 of U2
(MAX11612)
MAXSPCSPARTAN6+ Evaluation Kit
Evaluates: MAX5135/MAX11040/MAX11612
_______________________________________________________________________________________ 3
Table 2. MAXSPCSPARTAN6+ Connector
J3 Description
Table 3. MAXSPCSPARTAN6+ Connector
J4 Description
*Connected with J4 for probing only.
J3 PIN NO. LABEL FUNCTION
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 AD1+ ADC positive input to channel 1
of U3 (MAX11040)
9 AD0- ADC negative input to channel
0 of U3 (MAX11040)
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)
J4 PIN NO. LABEL FUNCTION
1 GND Ground
2 N.C. Not connected
3 DRDY DRDYOUT of MAX11040 going
to the FMC connector at C26*
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)*
8 N.C. Not connected
9 CS_AD
ADC (MAX11040) CS
connected to the FMC
connector at C11*
10 CS_DAC 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
I2C: SCL connected to the FMC
connector at C30 and going to
the ADC (MAX11612)*
15 +3V3USB Not connected
16 SDA
I2C: SDA connected to the FMC
connector at C31 and going to
the ADC (MAX11612)*
MAXSPCSPARTAN6+ Evaluation Kit
Evaluates: MAX5135/MAX11040/MAX11612
4 ______________________________________________________________________________________
Figure 1a. MAXSPCSPARTAN6+ EV Kit Schematic (Sheet 1 of 4)
MAXSPCSPARTAN6+ Evaluation Kit
Evaluates: MAX5135/MAX11040/MAX11612
_______________________________________________________________________________________ 5
Figure 1b. MAXSPCSPARTAN6+ EV Kit Schematic (Sheet 2 of 4)
MAXSPCSPARTAN6+ Evaluation Kit
Evaluates: MAX5135/MAX11040/MAX11612
6 ______________________________________________________________________________________
Figure 1c. MAXSPCSPARTAN6+ EV Kit Schematic (Sheet 3 of 4)
MAXSPCSPARTAN6+ Evaluation Kit
Evaluates: MAX5135/MAX11040/MAX11612
_______________________________________________________________________________________ 7
Figure 1d. MAXSPCSPARTAN6+ EV Kit Schematic (Sheet 4 of 4)
MAXSPCSPARTAN6+ Evaluation Kit
Evaluates: MAX5135/MAX11040/MAX11612
8 ______________________________________________________________________________________
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
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 9
© 2010 Maxim Integrated Products Maxim is a registered trademark of Maxim Integrated Products, Inc.
MAXSPCSPARTAN6+ Evaluation Kit
Evaluates: MAX5135/MAX11040/MAX11612
Revision History
REVISION
NUMBER
REVISION
DATE DESCRIPTION PAGES
CHANGED
0 5/10 Initial release —
