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Standard

1.Easy to use and quick to get started

2.The process supports design scales of 300 devices or 1000 pads

3.Supports simple circuit simulation

4.For students, teachers, creators

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2.Smooth support for design sizes of over 30,000 devices or 100,000 pads

3.More rigorous design constraints, more standardized processes

4.For enterprises, more professional users

Std edition Nano VFO 3

Profile:Powerfull digital VFO for homebrew tranceiver

License: GPL 3.0

Published Time: 2022-02-07 19:43:29
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Description

Nano VFO 3 - simple and powerfull digital VFO

CPU: Atmega328P PLL: Si5351 and/or Si570 Display: OLED 1.3" 128/132x64, OLED 0.96" 128x64 Encoder: mechanic rotary encode Keypad: 4 buttons Support different TRX architecture: 1. Single  IF superheterodyne. 2. Direct conversion with 2x or 4x output. 3. Direct conversion with quadrature output.

Builtin CW key: auto/iambic mode, 2 phrase memory, morse decoder VFOA/B, SPLIT, calibrated S-meter. Support CAT (KENWOOD protocol) Control attenuator, LNA, 5 band BPF without decoder and 16 band with external decoder

Firmware is opensource and available on github For more details visit to project homepage http://dspview.com/viewtopic.php?t=277

design drawing
schematic diagram
1 /
PCB
1 /
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ID Name Designator Footprint Quantity
1 16MHz Y1 3213 1
2 0.1u C32,C44,C43,C17,C1,C39 0805 6
3 Key 6 SW-6SWITCH SW4-6.2X6.2X5.0MM DIP BUTTON 1
4 Encoder P11 HDR-4X1/2.54 1
5 Ctrl P1 HDR-4X1/2.54 1
6 12MHz Y2 3213 1
7 1k R42,R41 0805 2
8 0.1 C63 0805 1
9 CH340G U22 SOIC-16_150MIL 1
10 Key 1 SW-1SWITCH SW4-6.2X6.2X5.0MM DIP BUTTON 1
11 AT24C32D-SSHM-T U13 SOIC-8_150MIL 1
12 100u C42 CAP-D8.0XF3.5 1
13 Power 12v P6 HDR-2X1/2.54 1
14 AMS1117-3.3 U15 SOT-223-3LEAD_TABPIN2 1
15 Key 2 SW-2SWITCH SW4-6.2X6.2X5.0MM DIP BUTTON 1
16 10u C30 0805 1
17 Key 3 SW-3SWITCH SW4-6.2X6.2X5.0MM DIP BUTTON 1
18 Key 4 SW-4SWITCH SW4-6.2X6.2X5.0MM DIP BUTTON 1
19 Key 5 SW-5SWITCH SW4-6.2X6.2X5.0MM DIP BUTTON 1
20 ISP J2 HDR-M-2.54_2X3 1
21 RX Ctrl J1 HDR-M-2.54_1X9 1
22 SPI TFT 128x160 Display Module ST7735 U18 1.8 INCH TFT ST7735S 10 PIN LCD DISPLAY WITHOUT SD 1
23 Ext1 J4 HDR-M-2.54_1X8 1
24 Ext2 J5 HDR-M-2.54_1X6 1
25 micro USBFemale USB1 MICRO-USB-1 1
26 DS3231 U9 SO16W 1
27 ATMEGA128A-AU U21 TQFP-64_L14.0-W14.0-P0.80-LS16.0-BL 1
28 PA Ctrl J3 HDR-M-2.54_1X5 1
29 560 R2 0805 1
30 10k R18,R23,R3,R1 0805 4
31 0 R4 0805 1
32 MINI360BUCK U20 MINI360BUCK 1
33 CR2032-BS-2-1 B1 BAT-TH_BS-2-1 1

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