MCP4725DM-PTPLS Microchip Technology, MCP4725DM-PTPLS Datasheet

BOARD DAUGHTER PICTAIL MCP4725

MCP4725DM-PTPLS

Manufacturer Part Number
MCP4725DM-PTPLS
Description
BOARD DAUGHTER PICTAIL MCP4725
Manufacturer
Microchip Technology
Datasheets

Specifications of MCP4725DM-PTPLS

Number Of Dac's
1
Number Of Bits
12
Outputs And Type
1, Single Ended
Sampling Rate (per Second)
100k ~ 3.4M
Data Interface
I²C
Settling Time
6µs
Dac Type
Voltage
Voltage Supply Source
Single
Operating Temperature
-40°C ~ 125°C
Utilized Ic / Part
MCP4725
Silicon Manufacturer
Microchip
Application Sub Type
DAC
Kit Application Type
Data Converter
Silicon Core Number
MCP4725
Silicon Family Name
PICtail
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MCP4725DM-PTPLS
Manufacturer:
Microchip Technology
Quantity:
135
MCP4725
PICtail Plus Daughter Board
User’s Guide
© 2008 Microchip Technology Inc.
DS51722A

Related parts for MCP4725DM-PTPLS

MCP4725DM-PTPLS Summary of contents

Page 1

... PICtail Plus Daughter Board © 2008 Microchip Technology Inc. MCP4725 User’s Guide DS51722A ...

Page 2

... PowerMate, PowerTool, REAL ICE, rfLAB, Select Mode, Total Endurance, UNI/O, WiperLock and ZENA are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. ...

Page 3

... A.4 Board – Top Metal Layer ............................................................................. 30 A.5 Board – Bottom Layer ................................................................................. 31 A.6 Board – Bottom Metal Layer ........................................................................ 32 Appendix B. Bill Of Materials (BOM) Worldwide Sales and Service .................................................................................... 34 © 2008 Microchip Technology Inc. MCP4725 PICtail™ Plus DAUGHTER BOARD USER’S GUIDE Table of Contents DS51722A-page iii ...

Page 4

... MCP4725 PICtail™ Plus Daughter Board User’s Guide NOTES: DS51722A-page iv © 2008 Microchip Technology Inc. ...

Page 5

... MCP4725 PICtail™ Plus Daughter Board. • Appendix B. “Bill Of Materials (BOM)” – lists the parts used to build the MCP4725 PICtail™ Plus Daughter Board. © 2008 Microchip Technology Inc. MCP4725 PICtail™ Plus DAUGHTER BOARD USER’S GUIDE ...

Page 6

... Optional arguments mcc18 [options] file [options] Choice of mutually exclusive errorlevel {0|1} arguments selection Replaces repeated text var_name [, var_name...] Represents code supplied by void main (void) user { ... } © 2008 Microchip Technology Inc. Examples ® IDE User’s Guide ...

Page 7

... Customers should contact their distributor, representative or field application engineer (FAE) for support. Local sales offices are also available to help customers. A listing of sales offices and locations is included in the back of this document. Technical support is available through the web site at: http://support.microchip.com © 2008 Microchip Technology Inc. Preface DS51722A-page 3 ...

Page 8

... MCP4725 PICtail™ Plus Daughter Board User’s Guide DOCUMENT REVISION HISTORY Revision A (March 2008) • Initial Release of this Document. DS51722A-page 4 © 2008 Microchip Technology Inc. ...

Page 9

... Analyzer 1.2 DESCRIPTION OF THE MCP4725 PICtail™ Plus DAUGHTER BOARD The MCP4725 PICtail™ Plus Daughter Board (P/N MCP4725DM-PTPLS) contains an MCP4725 12-bit Digital-to-Analog Converter (DAC). This daughter board has the fol- lowing two interfaces: • Explorer 16 Starter Kit (P/N: DV164033) for 16-bit MCU environment • ...

Page 10

... The user can see the DAC output (V Also, a buzzer on the MCP4725 PICtail™ Plus Daughter Board makes sounds driven by the DAC output (V DS51722A-page Front and Back Views of the MCP4725 PICtail™ Plus Daughter ) changes using an oscilloscope. OUT ). OUT © 2008 Microchip Technology Inc. ...

Page 11

... MCU using the MPLAB ICD 2. Figure 1-3 shows connection of the MPLAB ICD 2 and the Explorer 16 Development Board. Figure 1-4 shows the MPLAB IDE programming environment. © 2008 Microchip Technology Inc. Quick Start Instructions Explorer 16 Development Board (P/N DV164033) Connecting the MCP4725 PICtail™ Plus Daughter Board to the ...

Page 12

... The DAC input code is written from “000h” to OUT at the V test pin using a digital voltmeter or OUT OUT 2 C clock (SCL) and data (SDA) signals, and DAC . The user can disable the buzzer by disconnecting JP4. The OUT OUT 2 C bus line. See = V /2) by OUT DD © 2008 Microchip Technology Inc. ...

Page 13

... Explorer 16 Development Board FIGURE 1-3: MPLAB ICD2 connection to Explorer 16 Development Board with the MCP4725 PICtail™ Plus Daughter Board for programming. © 2008 Microchip Technology Inc. Quick Start Instructions (P/N DV164033) (P/N MCP4725DM-PTPLS) MCP4725 PICtail Plus Daughter Board DS51722A-page 9 ...

Page 14

... MCP4725 PICtail™ Plus Daughter Board User’s Guide FIGURE 1-4: MPLAB IDE Programming Environment. DS51722A-page 10 © 2008 Microchip Technology Inc. ...

Page 15

... POWER-UP (9V) SEND I DAC INPUT REGISTER DATA = DATA + 1 LSB YES FIGURE 1-5: Flow Chart for the MCP4725 PICtail™ Plus Daughter Board Firmware. © 2008 Microchip Technology Inc. Quick Start Instructions START 2 SEND I C WRITE COMMAND TO WRITE EEPROM DATA FOR OUT DD TURN ON LEDS (D4, D6, D8, D10) ...

Page 16

... I C Write Command Waveforms for the MCP4725. DS51722A-page 12 (a) Write DAC Input Register and EEPROM (DAC Code = 1000-0000-0000) • • 800(hex ----------------------- - = ------------------------------ - 4096 4096 (b) Fast Write Command (DAC Code = 0110-1101-1001) • • 6D9(hex ----------------------- - = -------------------------------- - 4096 4096 = 2.5V = 2.1398V © 2008 Microchip Technology Inc. ...

Page 17

... I C Data Signal (SDA) V OUT at V Pin OUT Write Data (Dn) = 1111 - 01101111 (binary) V OUT 2 FIGURE 1- SCL, SDA, and V © 2008 Microchip Technology Inc. Quick Start Instructions Zoomed area for SCL and SDA signals. • ----------------------- - = 4.823V for V 4096 Waveforms while incrementing the DAC code by 1 LSB. ...

Page 18

... USB Cable: Connected between the PICkit Serial analyzer and Personal Computer. FIGURE 1-8: MCP4725 PICtail™ Plus Daughter Board with the PICkit™ Serial Analyzer. DS51722A-page 14 pin and V OUT SS MCP4725 PICtail Plus Daughter Board Analog Output Voltage (V Connected to Voltmeter . ) OUT © 2008 Microchip Technology Inc. ...

Page 19

... Run the PICkit™ Serial PC Software: It will open up to the following graphic user interface (GUI). Click the Next button and follow the instructions: 4. Select the Communication Mode type: I © 2008 Microchip Technology Inc. Quick Start Instructions 2 C Master, and click the Next button. ...

Page 20

... The MCP4725 PICtail™ Plus Daughter Board has its own pull-up resistors, therefore, you don’t need additional pull-up resistors from the PICkit™ Serial Analyzer. DS51722A-page bus data rate up to 3.4 MHz, but the 2 C bus data © 2008 Microchip Technology Inc. ...

Page 21

... Case 2: When you use your own V You can also provide your own V this case, make sure that the JP1 jumper is disconnected. © 2008 Microchip Technology Inc. Quick Start Instructions voltage of the MCP4725 PICtail™ Plus Daughter Board and click DD from the PICkit™ Serial Analyzer: ...

Page 22

... MCP4725 PICtail™ Plus Daughter Board User’s Guide 8. Click the OK button. You have made all of the PICkit™ Serial Analyzer Configu- ration Set-ups. You are now ready to program the MCP4725 PICtail™ Plus Daughter Board using the PICkit™ Serial Analyzer. DS51722A-page 18 © 2008 Microchip Technology Inc. ...

Page 23

... In order to make a communication between the PICkit™ Serial Analyzer and the MCP4725 PICtail™ Plus Daughter Board, it needs a script file. The following procedure shows how to create script files and how to use them. 1. Select Communication -----> Script ---> Script Builder. © 2008 Microchip Technology Inc. Quick Start Instructions DS51722A-page 19 ...

Page 24

... This means there are three bytes to send -----------> 1st Write Byte: Address byte = 1100-0000 -----------> 2nd Write Byte: 0000-1111 -----------> 3rd Write Byte: 1111-1111 * . You can choose any data you want for the 2nd and 3rd write DD ⋅ V FFF(hex)( OUT = ------------------------------------------------ - 4096 © 2008 Microchip Technology Inc. ...

Page 25

... Serial Analyzer from the personal computer and recheck the parameter value in the order of the parameters under the Script Detail column. Try again until the “Busy” LED goes OFF after executing the write command. © 2008 Microchip Technology Inc. Quick Start Instructions 1st Write Byte ...

Page 26

... Write Byte: Address byte = 1100-0000 -----------> 2nd Write Byte: 0110-0000 -----------> 3rd Write Byte: 1000-0000 -----------> 4th Write Byte: 0000-0000 ⋅ ⋅ 800 hex DD = ---------------------- - = ---------------------------------- OUT 4096 1st Write Byte 2nd Write Byte 3rd Write Byte 4th Write Byte ( ) = 2.5V 4096 4 Bytes to Send © 2008 Microchip Technology Inc. ...

Page 27

... You can read back the DAC code stored in the DAC register with the following steps: 1. Create a read command script file name as shown below and execute it. 2. The results (DAC code) will appear on the PICkit™ Serial Transactions page. © 2008 Microchip Technology Inc. Quick Start Instructions ) from the MCP4725 PICtail™ Plus Daughter Board the MCP4725 device ...

Page 28

... Modify the script file as shown below and save it. Click on Execute Script button. 2. The results (DAC code and EEPROM data) will appear on the PICkit™ Serial Transactions page. DS51722A-page 24 Requesting 5 Bytes using a Write Command DAC EEPROM Data Register Data using a Read Command Written Data Reading Data © 2008 Microchip Technology Inc. ...

Page 29

... DAC Output Start 0xC0 ACK 0 0 PD1 PD0 D11 D10 D9 D8 Address Byte: when FIGURE 1-10: Fast Mode Write Command for V © 2008 Microchip Technology Inc. Quick Start Instructions Address Byte pin is Grounded = pin is tied to Vdd 0XC2 for ( Tied to V 0XC3 for ( Tied to V × ...

Page 30

... DAC Output Start 0xC0 ACK When A2=A1= FIGURE 1-11: Write Command for EEPROM and DAC Register for V DS51722A-page 26 × × REF = ------------------------- - = -------------------- - 4096 4096 x PD1 PD0 x ACK D11 D10 D9 0x60 0x00 = 2. ACK 11 0x08 = ACK STOP = V /2. OUT DD © 2008 Microchip Technology Inc. ...

Page 31

... This appendix contains the following schematics and layouts for the MCP4725 PICtail™ Plus Daughter Board: • Board – Schematic • Board – Top Layer • Board – Top Metal Layer • Board – Bottom Layer © 2008 Microchip Technology Inc. MCP4725 PICtail™ Plus DAUGHTER BOARD USER’S GUIDE DS51722A-page 27 ...

Page 32

... MCP4725 PICtail™ Plus Daughter Board User’s Guide A.2 BOARD – SCHEMATIC DS51722A-page 28 © 2008 Microchip Technology Inc. ...

Page 33

... A.3 BOARD – TOP LAYER © 2008 Microchip Technology Inc. Schematic and Layouts DS51722A-page 29 ...

Page 34

... MCP4725 PICtail™ Plus Daughter Board User’s Guide A.4 BOARD – TOP METAL LAYER DS51722A-page 30 © 2008 Microchip Technology Inc. ...

Page 35

... A.5 BOARD – BOTTOM LAYER © 2008 Microchip Technology Inc. Schematic and Layouts DS51722A-page 31 ...

Page 36

... MCP4725 PICtail™ Plus Daughter Board User’s Guide A.6 BOARD – BOTTOM METAL LAYER DS51722A-page 32 © 2008 Microchip Technology Inc. ...

Page 37

... POT 5.0K OHM THUMBWHEEL CERM ST Note 1: The components listed in this Bill of Materials are representative of the PCB assembly. The released BOM used in manufacturing uses all RoHS-compliant components. © 2008 Microchip Technology Inc. MCP4725 PICtail™ Plus DAUGHTER BOARD USER’S GUIDE Description Manufacturer ...

Page 38

... Fax: 886-3-572-6459 Taiwan - Kaohsiung Tel: 886-7-536-4818 Fax: 886-7-536-4803 Taiwan - Taipei Tel: 886-2-2500-6610 Fax: 886-2-2508-0102 Thailand - Bangkok Tel: 66-2-694-1351 Fax: 66-2-694-1350 © 2008 Microchip Technology Inc. EUROPE Austria - Wels Tel: 43-7242-2244-39 Fax: 43-7242-2244-393 Denmark - Copenhagen Tel: 45-4450-2828 Fax: 45-4485-2829 France - Paris Tel: 33-1-69-53-63-20 ...

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