MAX9959 Evaluation Kit
User-Supplied Interface
(On-Board Headers)
The MAX9959 EV kit uses ten signal lines from the
microcontroller for operation. The signal lines go to
JU11 and shunting the 1-2 position (default) uses the
on-board signals to operate the evaluation kit.
Switching the shunts to the 2-3 position allows user-
supplied signals to operate the evaluation kit. The
external signals are applied to headers J11, J13, J15,
Table 2. JU11 Jumper Description
and J17. Headers J11 and J13 contain the digital bits,
and headers J15 and J17 contain the analog voltages.
Headers J10, J12, J14, and J16 can be used as test
points, but are available to connect to another
MAX9959 EV kit board. The outputs on headers J10,
J12, J14, and J16 can connect to the inputs on headers
J11, J13, J15, and J17 with the shunt positions
changed to the 2-3 position on JU11. This allows multi-
ple boards to be paralleled.
JU11 ROWS
Row A
Row B
Row C
Row D
Row E
Row F
Row G
Row H
Row I
Row J
SHUNT POSITION
1-2*
2-3
1-2*
2-3
1-2*
2-3
1-2*
2-3
1-2*
2-3
1-2*
2-3
1-2*
2-3
1-2*
2-3
1-2*
2-3
1-2*
2-3
DESCRIPTION
MAXQ microcontroller-generated DIN
External DIN
MAXQ microcontroller-generated SCLK
External SCLK
MAXQ microcontroller-generated CS for MAX9959
External CS for the MAX9959
MAXQ microcontroller-generated CS for MAX5735
External CS for the MAX5735
MAXQ microcontroller-generated CS for MAX531
External CS for the MAX531
MAXQ microcontroller-generated MSBIT
External MSBIT
MAXQ microcontroller-generated LOAD
External LOAD
MAXQ microcontroller-generated HIZMP
External HIZMP
MAXQ microcontroller-generated IDDQSEL
External IDDQSEL
MAXQ microcontroller-generated CLR ( internal use only)
External CLR
Table 3. Analog Voltage Settings J2 Header Description
J2
1
3
5
7
9
11
13
MAX5735 SIGNAL NAME
OUT0_B
OUT1_B
OUT2
OUT3
OUT4
OUT5_B
OUT6_B
J2
2
4
6
8
10
12
14
MAX9959 SIGNAL NAME
ITHLO_M
ITHHI_M
IOSI_M
IOSV_M
VIN_M
CLL_M
CLH_M
Note: OUT_ _B is a buffered version of OUT_.
8
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