Differences
This shows you the differences between two versions of the page.
| Both sides previous revision Previous revision Next revision | Previous revision | ||
|
resources:eval:ezlinx:isolated-i2c [14 May 2012 16:59] Neil Quinn improved image |
resources:eval:ezlinx:isolated-i2c [31 Dec 2020 07:22] (current) Robin Getz fix links |
||
|---|---|---|---|
| Line 1: | Line 1: | ||
| \\ | \\ | ||
| - | [[http://wiki.analog.com/ezlinx|ezLINX™ iCoupler® Isolated Interface Development Platform Homepage]] | + | [[resources/eval/ezlinx|ezLINX™ iCoupler® Isolated Interface Development Environment Homepage]] |
| \\ | \\ | ||
| ====== ezLINX™ Isolated I2C Implementation====== | ====== ezLINX™ Isolated I2C Implementation====== | ||
| - | The Isolated I2C port is implemented using the [[http://www.analog.com/adum1250|ADuM1250]] I2C Isolator and [[http://www.analog.com/adum5000|ADuM5000]] //iso//Power Isolated DC to DC converter. The [[http://www.analog.com/adum1250|ADuM1250]] connects to TW1 of the ADSP-BF548 and is capable of functioning at a maximum frequency of 1MHz. Figure 1 below shows a circuit diagram of the implementation of the [[http://www.analog.com/adum1250|ADuM1250]] and [[http://www.analog.com/adum5000|ADuM5000]] on the //ez//LINX hardware. | + | The Isolated I2C port is implemented using the [[adi>ADuM1250]] I2C Isolator and [[adi>ADuM5000]] //iso//Power Isolated DC to DC converter. The [[adi>ADuM1250]] connects to TW1 of the ADSP-BF548 and is capable of functioning at a maximum frequency of 1MHz. Figure 1 below shows a circuit diagram of the implementation of the [[adi>ADuM1250]] and [[adi>ADuM5000]] on the //ez//LINX hardware. |
| {{ :ezlinx:isolatedi2c.png?nolink&600 |Figure 1. Isolated I2C schematic}} | {{ :ezlinx:isolatedi2c.png?nolink&600 |Figure 1. Isolated I2C schematic}} | ||
| - | VDD1 of the [[http://www.analog.com/adum1250|ADuM1250]] and VDD1 of the [[http://www.analog.com/adum5000|ADuM5000]] are both powered by 3.3V. The ADuM5000 will generate an isolated 3.3V which is used to supply power to VDD2 of the [[http://www.analog.com/adum1250|ADuM1250]]. | + | VDD1 of the [[adi>ADuM1250]] and VDD1 of the [[adi>ADuM5000]] are both powered by 3.3V. The ADuM5000 will generate an isolated 3.3V which is used to supply power to VDD2 of the [[adi>ADuM1250]]. |
| A three pin screw terminal connector, J22, is used for easy access to the SDA (Pin 1), SCL (Pin 2) and I2C_ISO_GND (Pin 3) connections. | A three pin screw terminal connector, J22, is used for easy access to the SDA (Pin 1), SCL (Pin 2) and I2C_ISO_GND (Pin 3) connections. | ||
resources/eval/ezlinx/isolated-i2c.1337007553.txt.gz · Last modified: 14 May 2012 16:59 by Neil Quinn