APPENDIX A IMU Technical Specifications
OEM7 SPAN Installation and Operation User Manual v14
210
A.11.4 OEM-IMU-ADIS-16488 SPI Connection
The following table shows the connections required when connecting the OEM-IMU-ADIS-16488 IMU to a SPI
compatible OEM7 receiver, such as the OEM7600, OEM7700 or OEM7720.
ADIS-16488
Receiver
Pin
Pin
Name
Pin
Pin Name
Description
1
NC
–
–
Do not connect
2
NC
–
–
Do not connect
3
SCLK
44
SPI_
SCLK
SPI Serial Clock
4
SDO
43
SPI_
MISO
SPI Data Output
5
SDI
41
SPI_
MOSI
SPI Data Input
6
/CS
42
SPI_nCS
SPI Chip Select
7
DIO1
26
EVENT_
OUT2
Synchronization signal
8
/RST
–
–
Reset IMU
RST must be high for the IMU to be active.
To enable the IMU when the receiver is powered on, connect this pin to Pin 1
or Pin 2 of the receiver interface connector through a 10 kΩ resistor
(recommended).
Can also connect this pin to any stable 3.3 VDC power supply or output
configuration to have more control over when IMU is enabled. When using
this configuration note that:
l
pin 8 must be pulled low for greater than 100 ms to properly soft-reset
the IMU
l
pin has an internal pull-up resistor
9
DIO2
29
EVENT_
IN2
Data ready
10
VDD
–
–
3.3 VDC power supply
11
VDD
–
–
3.3 VDC power supply
12
VDD
–
–
3.3 VDC power supply
13
GND
–
–
Digital ground
Table 103: Receiver to ADIS-16488 Pin Connections
