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dc2197afa

DEMO MANUAL DC2197A

Quick start proceDure

Standalone Operation

DC2197A makes evaluation of the LTC2645 very easy. 

Figure 1 shows  the  basic  connections  to  operate  the 

DC2197A  as  a  standalone  board.  Connect  a 2.7V  to 

5.5V supply to the VCC turret and a GND turret. IOVCC 

is connected to VCC by default such that the input logic 

level matches the VCC supply. If a different logic level is 

required, move the IOVCC jumper to the EXT position and 

connect a supply equal to the PWM signals’ logic level 

to the IOVCC and GND turrets. There is no sequencing 

requirement between VCC and IOVCC.
Any convenient PWM source can be used. A pulse genera-

tor with a computer interface (GPIP, USB, Ethernet, etc.) 

can be used for characterization. In the end application, 

signals  can  originate  from  an  FPGA,  microcontroller, 

programmable logic controller (PLC), optocoupler, etc.

Linduino Operation

DC2197A is in an “Arduino Shield” form factor, compat-

ible with Linear Technology’s DC2026 Linduino board and 

other Arduino Uno compatible boards. This provides a 

convenient way to evaluate the LTC2645 under computer 

control. The Linduino board has two PWM outputs with 

16-bit resolution and four with 8-bit resolution. INA and 

INB  are  connected  to 16-bit  PWM  capable  outputs  on 

digital pins 9 and 10, INC and IND are connected to 8-bit 

PWM capable outputs on digital pins 5 and 6; these can 

be remapped by removing R8 – R11 and making appro-

priate connections to TPA – TPD. The Linduino program 

(“sketch”) provides a simple terminal interface allowing 

voltages or codes to be entered manually. It can also be 

controlled by any programming language that can com-

municate with a USB virtual COM port (Matlab, Python, 

C

++

, C#, etc.) The program can be modified as desired to 

change or add functionality.
Install the DC2197A onto the DC2026 as shown in Figure 2.  

Ensure that the IOVCC jumper is set to VCC.

Summary of Contents for DC2197A

Page 1: ...the Linear logo are registered trademarks of Linear Technology Corporation All other trademarks are the property of their respective owners Board Photo level can be between 1 71V and 5 5V set by a se...

Page 2: ...controller PLC optocoupler etc Linduino Operation DC2197A is in an Arduino Shield form factor compat ible with Linear Technology s DC2026 Linduino board and other Arduino Uno compatible boards This pr...

Page 3: ...NECTION TO COMPUTER Figure 2 Linduino Connections Follow the procedure for installing drivers and sketchbook in the DC2026 Demo Manual Upload the DC2197 program sketch Select File Sketchbook Part Numb...

Page 4: ...n the C5G board will match perfectly JP10 will Quick Start Procedure have two empty holes on the left hand side and JP11 will have two empty holes on the right hand side A Quartus archive project and...

Page 5: ...5 dc2197afa DEMO MANUAL DC2197A Quick Start Procedure Figure 4 Altera Program Operation Figure 5 PWM Details...

Page 6: ...When REFSEL is set to EXT an external refer ence between 1V and VCC may be connected to this point Arduino Shield Connections IOL1 IOH1 AD0 POWER headers installed on back side of board These headers...

Page 7: ...TECHNOLOGY Fax 408 434 0507 Milpitas CA 95035 Phone 408 432 1900 1630 McCarthy Blvd LTC Confidential For Customer Use Only CUSTOMER NOTICE LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT...

Page 8: ...CLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE EXCEPT TO THE EXTENT OF THIS INDEMNITY NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR ANY INDIRECT SPECIAL INCIDENTAL OR C...

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