Datasheet

MAX9934T Evaluation Kit
Evaluates: MAX9934
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Table 2. U2 CS Pin Logic Input (JU3)
Table 1. U1 CS Pin Logic Input (JU2)
Chip Select (CS)
Jumpers JU2 and JU3 enable or disable the respective
amplifier’s output by controlling the device’s CS pins
on U1 and U2, respectively. An external controller can
drive the U1 and U2 CS input pins using the EV kit’s
CS1(SIGN1) and CS2(SIGN2) PCB pads, respectively.
The CS pins are compatible with +1.8V through +3.3V
logic. Connect the external controller’s logic ground
return to a GND PCB pad and remove pullup resistors R3
and R4, if not needed. See Tables 1 and 2 for jumpers
JU2 and JU3 configuration.
Evaluating the MAX9934F
To evaluate the MAX9934F, replace U1 (3 x 2-bump
UCSP) or U2 (8-pin FMAX) with the appropriate version.
The device can be multiplexed with other MAX9934F
parts. See the Chip Select (CS) section for additional
information.
Output Measurements
The device provides a current output that can be
measured across the OUT and OUT_REF PCB pads.
Connect a 1.65V reference voltage across the OUT_REF
and GND PCB pads.
SHUNT
POSITION
U1 CS PIN
CONNECTION
EV KIT FUNCTION
Not
installed
Pulled up to VCC
through R3
U1 output enabled
Installed GND
U1 output disabled
(high impedance)
SHUNT
POSITION
U2 CS PIN
CONNECTION
EV KIT FUNCTION
Not
installed
Pulled up to VCC
through R4
U2 output enabled
Installed GND
U2 output disabled
(high impedance)