MPU6050 View Datasheet(PDF) - Unspecified
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MPU6050 Datasheet PDF : 54 Pages
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MPU-6000/MPU-6050 Product Specification
Document Number: PS-MPU-6000A-00
Revision: 3.3
Release Date: 5/16/2012
10.4 Logic Levels Diagram for AUX_VDDIO = 1
The figure below depicts a sample circuit with a 3rd party magnetometer attached to the auxiliary I2C bus. It
shows logic levels and voltage connections for AUX_VDDIO = 1. This configuration is useful when the
auxiliary sensor has only one supply for logic and power. Note: Actual configuration will depend on the
auxiliary sensors used.
VLOGIC
(0V - VLOGIC)
SYSTEM BUS
VDD_IO
VDD
VLOGIC
System
Processor IO
(0V - VLOGIC)
(0V - VLOGIC)
VLOGIC
VDD
CLKIN
FSYNC
(0V - VLOGIC)
INT
SDA
(0V - VLOGIC)
SCL
(0V - VLOGIC)
MPU-6050
VLOGIC
(0V, VLOGIC)
AD0
AUX_DA
AUX_CL
0V - VDD
0V - VDD
VLOGIC
VDD
VDD
INT 1
INT 2
SDA
SCL
3rd Party ADDR
Magnetometer
(0V – VLOGIC)
(0V – VLOGIC)
0V - VDD
Voltage/
Configuration
VLOGIC
VDD
AUX_VDDIO
Configuration 1
1.8V±5%
2.5V±5%
1
Configuration 2
3.0V±5%
3.0V±5%
1
I/O Levels and Connections for Two Example Power Configurations (AUX_VDDIO = 1)
Notes:
1. AUX_VDDIO determines the IO voltage levels of AUX_DA and AUX_CL. AUX_VDDIO = 1 sets
output levels relative to VDD.
2. 3rd-party auxiliary device logic levels are referenced to VDD. Setting INT1 and INT2 to open drain
configuration provides voltage compatibility when VDD ≠ VLOGIC. When VDD = VLOGIC, INT1 and
INT2 may be set to push-pull outputs, and external pull-up resistors are not needed.
3. CLKOUT is referenced to VDD.
4. All other MPU-6050 logic IOs are referenced to VLOGIC.
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