MAX19713EVCMODU+ Maxim Integrated Products, MAX19713EVCMODU+ Datasheet - Page 10

• Manufacturer Part Number: MAX19713EVCMODU+
• Description: EVAL MODULE FOR MAX19713
• Manufacturer: Maxim Integrated Products

Specifications of MAX19713EVCMODU+

• Main Purpose: Interface, Analog Front End (AFE)
• Embedded: No
• Utilized Ic / Part: MAX19713
• Primary Attributes: Dual 45MSPS 10-bit Rx ADCs & Tx DACs
• Secondary Attributes: Graphical User Interface, SPI™ & USB Interfaces
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Configure the on-board buffers for a positive (noninverting)
gain by performing the following steps:
1) Cut open the trace at locations R31, R33, and R35.
2) Select a value of 10kΩ for resistors R32, R34, and
3) Calculate resistors R31, R33, and R35 using the
4) Install R31, R33, and R35 in their respective locations:
where:
The low-speed buffers (U6) on the EV kits are optional and,
if desired, can be disconnected from the DAC outputs of
the AFEs.
MAX19710–MAX19713 Evaluation
Kits/Evaluation Systems
10
R36.
equations below.
______________________________________________________________________________________
BDAC
R
DAC
32
= R
_
_
R
R
R
34
= Desired noninverting gain of buffer
31
33
35
= R
=
=
=
36
R
R
R
32
34
36
= 10kΩ
x
x
x
Driving Unbuffered Loads
⎡
⎢
⎣
⎡
⎢
⎣
⎡
⎢
⎣
BDAC
BDAC
BDAC
DAC
DAC
DAC
1
2
3
1
2
3
−
−
−
1
1
1
⎤
⎥
⎦
⎤
⎥
⎦
⎤
⎥
⎦
Disconnect the buffers from the AFEs by cutting the
trace at locations R28, R29, and R30. Connect the low-
speed DAC loads to the DAC1, DAC2, and DAC3 pads
on the EV kit. If the load capacitance is between 5pF
and 15pF, cut the trace and install 10kΩ resistors at
locations R25, R26, and R27. Resistors are not required
if the load is less than 5pF.
The EV kits provide pads and jumpers that allow an
alternative SPI interface to be used. Connect the inter-
face to the CS, SCLK, DIN, DOUT, and OGND pads.
Ensure that the SPI voltages are compatible with all of
the AFE’s working voltages. Refer to the individual
MAX19710, MAX19711, MAX19712, and MAX19713
data sheets for suitable SPI interface voltages. Remove
the shunts from jumper JU1. See Table 4 for jumper
configurations.
Table 4. Alternative SPI Interface (JU1)
* Default configuration.
SHUNT POSITION
Not installed
1-2*
3-4*
5-6*
7-8*
Using an Alternative SPI Interface
Normal Operation.
Four shunts are installed across
pins 1-2, 3-4, 5-6, and 7-8.
Alternative SPI Interface.
No shunts are installed on JU1, connect
the SPI signals to the CS, SCLK, DIN,
DOUT, and OGND pads.
DESCRIPTION