Connect an OEM-IMU-ADIS-16488 Directly to an OEM7 Receiver Card

The OEM-IMU-ADIS-16488 can connect directly to SPI capable OEM7 receivers, such as the OEM7600, OEM7700 and OEM7720, using a SPI connection. The SPI connection handles timing and data communication between the receiver and IMU.

The OEM-IMU-ADIS-16488 can also connect to any OEM7 receiver using a MEMS Interface Card (MIC). For information about using a MIC, see MIC Installation.

The interface to the OEM-IMU-ADIS-16488 must provide:

  • a Samtec CLM-112-02 connector

    This connector mates with the connector on the OEM-IMU-ADIS-16488. See Figure: OEM-IMU-ADIS-16488 Pin Locations for the location of the IMU connector and pins.

  • a SPI port connection to the OEM7 receiver

    Refer to the following table for the connections required between the IMU and receiver. For information about the receiver connector, see OEM7600 Interface Connector, OEM7700 Interface Connector or OEM7720 Interface Connector.

  • a 3.3 VDC (±0.3 VDC) regulated power supply

    Refer to the following table for the location of the power supply connections.

    Install a user supplied 0.5 A slow blow fuse to the positive pole of the power source to protect the power supply wiring and your warranty.

OEM-IMU-ADIS-16488 Pin Locations

Pins not shown on the following table are not connected.

Receiver to OEM-IMU-ADIS-16488 Pin Connections

ADIS‑16488

Receiver

 

Pin

Pin Name

Pin

Pin Name

Description

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:

  • pin 8 must be pulled low for greater than 100 ms to properly soft-reset the IMU

  • pin has an internal pull-up resistor

9

DIO2

29

EVENT_IN2

Data ready

10-12

VDD

–

–

3.3 VDC power supply

13-15

GND

–

–

Digital ground

In the table above, the receiver pin numbers are for OEM7600, OEM7700 and OEM7720 receivers. For the location of the receiver card pins, refer to Technical Specifications.

For more information about the OEM-IMU-ADIS-16488, see OEM-IMU-ADIS-16488.