# ADC dithering PIC24 ## Description Adding uncorrelated (i.e. white) noise to an analog signal prior to digitization. It has 2 noise circuits and the adc circuit with a pic24 microcontroller ## Project Details - **Owner:** turbos - **Created:** 4/16/2024 - **Last Updated:** 4/19/2024 - **Visibility:** Public ## Key Components ### IC1 — [PIC24FJ64GA002-I/SO](https://www.flux.ai/jecstronic/pic24fj64ga002-iso~40f.md) - Manufacturer Part Number: PIC24FJ64GA002-I/SO - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://ww1.microchip.com/downloads/en/DeviceDoc/39881e.pdf - Part Type: Integrated Circuit - Manufacturer Name: Microchip Technology **Pins:** - ~MCLR [pin 1] - AN0/VREF+/CN2/RA0 [pin 2] - AN1/VREF-/CN3/RA1 [pin 3] - AN10/CVREF/RTCC/RP14/CN12/PMWR/RB14 [pin 25] - AN11/RP13/CN13/PMRD/RB13 [pin 24] - AN12/RP12/CN14/PMD0/RB12 [pin 23] - AN4/C1IN-/SDA2/RP2/CN6/RB2 [pin 6] - AN5/C1IN+/SCL2/RP3/CN7/RB3 [pin 7] - AN9/RP15/CN11/PMCS1/RB15 [pin 26] - DISVREG [pin 19] - OSCI/CLKI/CN30/RA2 [pin 9] - OSCO/CLKO/CN29/PMA0/RA3 [pin 10] - PGEC1/AN3/C2IN+/RP1/CN5/RB1 [pin 5] - PGEC2/TMS/RP11/CN15/PMD1/RB11 [pin 22] - PGEC3/ASCL1/RP6/CN24/PMD6/RB6 [pin 15] - PGED1/AN2/C2IN-/RP0/CN4/RB0 [pin 4] - PGED2/TDI/RP10/CN16/PMD2/RB10 [pin 21] - PGED3/ASDA1/RP5/CN27/PMD7/RB5 [pin 14] - RP7/INT0/CN23/PMD5/RB7 [pin 16] - SOSCI/RP4/PMBE/CN1/RB4 [pin 11] - SOSCO/T1CK/CN0/PMA1/RA4 [pin 12] - TCK/SCL1/RP8/CN22/PMD4/RB8 [pin 17] - TDO/SDA1/RP9/CN21/PMD3/RB9 [pin 18] - VCAP/VDDCORE [pin 20] - VDD [pin 13] - VDD1 [pin 28] - VSS [pin 8] - VSS1 [pin 27] ### J1 — [B14B-XH-A(LF)(SN)](https://www.flux.ai/adrian95/b14b-xh-alfsn~x2.md) - Manufacturer Name: JST Sales America Inc. - Manufacturer Part Number: B14B-XH-A(LF)(SN) - Datasheet URL: https://www.jst-mfg.com/product/pdf/eng/eXH.pdf - Part Type: Connector **Pins:** - Pin_1 [pin 1] - Pin_10 [pin 10] - Pin_11 [pin 11] - Pin_12 [pin 12] - Pin_13 [pin 13] - Pin_14 [pin 14] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] - Pin_5 [pin 5] - Pin_6 [pin 6] - Pin_7 [pin 7] - Pin_8 [pin 8] - Pin_9 [pin 9] ### J2 — [DB126V-5.0-3P-GN](https://www.flux.ai/jharwinbarrozo/db126v-5p0-3p-gn~6j.md) - Manufacturer Name: DIBO - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: DB126V-5.0-3P-GN - Datasheet URL: https://datasheet.lcsc.com/lcsc/1912111437_DIBO-DB126V-5-0-3P-GN_C395850.pdf - Part Type: Connector **Pins:** - PIN1 [pin 1] - PIN2 [pin 2] - PIN3 [pin 3] ### J3 — [B14B-XH-A(LF)(SN)](https://www.flux.ai/adrian95/b14b-xh-alfsn~x2.md) - Manufacturer Name: JST Sales America Inc. - Part Type: Connector - Datasheet URL: https://www.jst-mfg.com/product/pdf/eng/eXH.pdf - Manufacturer Part Number: B14B-XH-A(LF)(SN) **Pins:** - Pin_1 [pin 1] - Pin_10 [pin 10] - Pin_11 [pin 11] - Pin_12 [pin 12] - Pin_13 [pin 13] - Pin_14 [pin 14] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] - Pin_5 [pin 5] - Pin_6 [pin 6] - Pin_7 [pin 7] - Pin_8 [pin 8] - Pin_9 [pin 9] ### Q1 — [BC182LB](https://www.flux.ai/jecstronic/bc182lb~0a9.md) - Part Type: Transistor - Datasheet URL: https://rocelec.widen.net/view/pdf/bq4cw2uwvx/FAIRS20391-1.pdf?t.download=true&u=5oefqw - Manufacturer Part Number: BC182LB - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Fairchild Semiconductor **Pins:** - B [pin 3] - C [pin 2] - E [pin 1] ### SW1 — [DS04-254-1L-03BK](https://www.flux.ai/vasyl/ds04-254-1l-03bk~h74.md) - Part Type: Switch - Manufacturer Part Number: DS04-254-1L-03BK - Manufacturer Name: CUI Devices - Datasheet URL: https://www.cuidevices.com/product/resource/digikeypdf/ds04-254.pdf **Pins:** - ~ [pin 1A] - ~ [pin 2B] - ~ [pin 2A] - ~ [pin 3B] - ~ [pin 1B] - ~ [pin 3A] ### U1 — [LM741](https://www.flux.ai/jecstronic/lm741~f1y.md) - Datasheet URL: https://www.ti.com/lit/gpn/lm741 - Manufacturer Name: Texas Instruments - Manufacturer Part Number: LM741 - Part Type: Operational Amplifier (OP-AMP) - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - - [pin 2] - + [pin 3] - NC [pin 8] - NULL [pin 5] - NULL [pin 1] - OUTPUT [pin 6] - V- [pin 4] - V+ [pin 7] ### U2 — [LM741](https://www.flux.ai/jecstronic/lm741~f1y.md) - Part Type: Operational Amplifier (OP-AMP) - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Texas Instruments - Datasheet URL: https://www.ti.com/lit/gpn/lm741 - Manufacturer Part Number: LM741 **Pins:** - - [pin 2] - + [pin 3] - NC [pin 8] - NULL [pin 5] - NULL [pin 1] - OUTPUT [pin 6] - V- [pin 4] - V+ [pin 7] ### U3 — [LT1028CN8](https://www.flux.ai/turbos/lt1028cn8~70.md) - Manufacturer Part Number: LT1028CN8 - Manufacturer Name: Analog Devices, Inc. **Pins:** - -IN [pin 2] - +IN [pin 3] - OUT [pin 6] - OVERCOMP [pin 5] - V- [pin 4] - V+ [pin 7] - VOSTRIM [pin 8] - VOSTRIM_2 [pin 1] ### VR1 — [3386W-1-502LF](https://www.flux.ai/jecstronic/3386w-1-502lf~z9.md) - Part Type: Potentiometer - Manufacturer Name: Bourns Inc. - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.bourns.com/docs/Product-Datasheets/3386.pdf - Manufacturer Part Number: 3386W-1-502LF - Resistance: 5kΩ **Pins:** - CCW [pin 1] - CW [pin 3] - WIPER [pin 2] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/turbos/adc-dithering-pic24~x0](https://www.flux.ai/turbos/adc-dithering-pic24~x0).* --- *Generated from [https://www.flux.ai/turbos/adc-dithering-pic24~x0](https://www.flux.ai/turbos/adc-dithering-pic24~x0)*