2 layers46.3 × 40.2 mm
2 layers95.6 × 92.2 mm
Signal generator
Pejo-306/digital-function-generatorA digital function generator which outputs waveforms up to 10 kHz
- Size
- 95.6 × 92.2 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 63
- Nets
- 56
- Pads
- 235
- Tracks, vias
- 653, 116
- Pours
- 9
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 17 Nov 2018
- Updated
- 24 Jun 2019
Overview
Signal generator is an open-source printed circuit board by Pejo-306, from the Pejo-306/digital-function-generator repository on GitHub, published under the MIT licence. It is a 2-layer board of 95.6 × 92.2 mm with 63 parts on 56 nets, routed with 653 tracks and 116 vias.
It is built around the ATMEGA328PB-AU, AD8021ARZ and AD9708AR, with the CD1206-S01575 among its other parts. Its parts include 23 capacitors, 16 resistors, 6 switches, 5 connectors and 4 ICs. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
4
ATMEGA328PB-AU
TQFP-32(7x7)-40℃~+85℃ 1.8V~5.5V 10bit 1KB 20MHz 27 2KB 32KB 8 Bit AVR Built-in FLASH Power-on reset (POR)、Undervoltage detection (BOR/LVD/LVR/LVI)、Watchdog reset、External pin reset (NRST)、Built-in general-purpose timer、Programmable watchdog、Touch function TQFP-32(7x7) Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
AD8021ARZ
SOIC-8-2.25V~12V -40℃~+85℃ 1 10.5uA 1mV 2.1nV/√Hz@50kHz 24V 420V/us 500nV/℃ 5V~24V 98dB SOIC-8 Operational Amplifier ROHSAnalog DevicesOperational Amplifier
AD9708AR
SOIC-28-300mil-40℃~+85℃ 0.25LSB、0.25LSB 2.7V~5.5V 35ns 8 Current-Non-buffered Parallel SOIC-28-300mil Digital to Analog Converters (DAC) ROHSAnalog DevicesDigital To Analog Converters (DAC)
CD1206-S01575
1206-55℃~+125℃ 150mA 1V@50mA 2.5uA@75V 400mW 4A 4ns 75V Standalone 1206 Switching Diodes ROHSBournsSwitching Diodes
Parts
63| Qty | Value | Footprint | References |
|---|---|---|---|
| 11 | 100nF | Capacitors_SMD:C_1206_HandSoldering | C8, C9, C11, C13, C14, C15, C16, C18, C20, C21, C23 |
| 5 | 10uF/16V | Capacitors_SMD:CP_Elec_4x5.3 | C1, C2, C5, C6, C7 |
| 3 | 10k | Resistors_SMD:R_1206_HandSoldering | R1, R3, R4 |
| 3 | 3k | Resistors_SMD:R_1206_HandSoldering | R13, R14, R16 |
| 2 | 10R | Resistors_SMD:R_1206_HandSoldering | R7, R9 |
| 2 | 10k | Potentiometers:Potentiometer_Bourns_PTV09A-1_Horizontal | RV1, RV3 |
| 2 | 10uF/16V | Capacitors_Tantalum_SMD:CP_Tantalum_Case-A_EIA-3216-18_Hand | C10, C12 |
| 2 | 15R | Resistors_SMD:R_1206_HandSoldering | R6, R8 |
| 2 | 1k1 | Resistors_SMD:R_1206_HandSoldering | R10, R11 |
| 2 | 22pF | Capacitors_SMD:C_1206_HandSoldering | C3, C4 |
| 2 | 6.8pF | Capacitors_SMD:C_1206_HandSoldering | C19, C22 |
| 2 | AD8021ARZ | Housings_SOIC:SOIC-8_3.9x4.9mm_Pitch1.27mm | U3, U4 |
| 1 | 11k | Resistors_SMD:R_1206_HandSoldering | R12 |
| 1 | 16MHz | Crystals:Crystal_HC49-U_Vertical | Y1 |
| 1 | 1M | Resistors_SMD:R_1206_HandSoldering | R2 |
| 1 | 1k | Potentiometers:Potentiometer_Bourns_PTV09A-1_Horizontal | RV2 |
| 1 | 1k5 | Resistors_SMD:R_1206_HandSoldering | R15 |
| 1 | 2.2nF | Capacitors_SMD:C_1206_HandSoldering | C17 |
| 1 | 2k | Resistors_SMD:R_1206_HandSoldering | R5 |
| 1 | AD9708AR | Housings_SOIC:SOIC-28W_7.5x17.9mm_Pitch1.27mm | U2 |
| 1 | ATmega328PB-AU | Housings_QFP:TQFP-32_7x7mm_Pitch0.8mm | U1 |
| 1 | AVR-ISP-6 | Pin_Headers:Pin_Header_Straight_2x03_Pitch2.54mm | J1 |
| 1 | CD1206-S01575 | Diodes_SMD:D_1206 | D1 |
| 1 | DOWN_ARROW | Buttons_Switches_THT:SW_PUSH_6mm | SW5 |
| 1 | Frequency_Step_Rotary_Encoder | Rotary_Encoder:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm | SW6 |
| 1 | LCD_Connector | Pin_Headers:Pin_Header_Straight_1x04_Pitch2.54mm | J2 |
| 1 | MODE_SELECT | Buttons_Switches_THT:SW_PUSH_6mm | SW3 |
| 1 | Output_Connector | Connectors:bnc-ci | J5 |
| 1 | PORT_E | Pin_Headers:Pin_Header_Straight_1x04_Pitch2.54mm | J3 |
| 1 | Power_Supply_Rails | Pin_Headers:Pin_Header_Straight_2x06_Pitch2.54mm | J4 |
| 1 | RESET_BUTTON | Buttons_Switches_THT:SW_PUSH_6mm_h4.3mm | SW1 |
| 1 | START/STOP | Buttons_Switches_THT:SW_PUSH_6mm | SW2 |
| 1 | UP_ARROW | Buttons_Switches_THT:SW_PUSH_6mm | SW4 |
The 59 most common of 63 parts.
Questions
How big is the Signal generator PCB?
It measures 95.6 × 92.2 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Signal generator use?
63 parts, built around the ATMEGA328PB-AU, AD8021ARZ, AD9708AR and CD1206-S01575. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Signal generator KiCad files?
From the Pejo-306/digital-function-generator repository on GitHub, at the commit this page was made from: the board is hardware/signal-generator/signal-generator.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Signal generator design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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