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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

Profession

1.Brand new interactions and interfaces

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 3.1

Profile:Powerfull digital VFO for homebrew tranceiver

License: GPL 3.0

Published Time: 2022-03-28 22:22:10
  • 3.8k
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Description

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: single  IF superheterodyne, 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
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Empty
ID Name Designator Footprint Quantity
1 0.1 C63 C0603 1
2 100u C7,C17 CAP-D6.3XF2.5 2
3 Key 1 SW-5SWITCH,SW-4SWITCH,SW-3SWITCH,SW-2SWITCH SW4-6.2X6.2X5.0MM DIP BUTTON 4
4 0.1u C11,C4,C14,C1,C9,C2,C6,C5,C10 0805 9
5 Si5351A-A-GT U2 MSOP10 1
6 0.01 C13,C12 0805 2
7 0.1 C3,C65,C64 0805 3
8 ATMEGA328_TQFP U18 TQFP32 1
9 10k R33 R0603 1
10 16MHz Y1 3213 1
11 10u C66 0805 1
12 CH340G U17 SOIC-16_150MIL 1
13 1u C15 0805 1
14 1k R32,R30 R0603 2
15 12MHz Y2 3213 1
16 4k7 R11,R10 0805 2
17 470u C8 CAP-D6.3XF2.5 1
18 AMS1117-5.0 U6 SOT-223-3LEAD_TABPIN2 1
19 Power 6V..12V P8 HDR-2X1/2.54 1
20 AMS1117-3.3 U10 SOT-223-3LEAD_TABPIN2 1
21 25MHz XTAL1 HC-49U-PTH 1
22 Enable Ext Power P1 HDR-2X1/2.54 1
23 74HC595 U3 SOP-16_150MIL 1
24 I2C Ext H4 DIP-1X4P-2.54MM-M 1
25 VFO Out J3 HDR-M-2.54_2X3 1
26 Bands J2 HDR-M-2.54_2X5 1
27 micro USBFemale USB1 MICRO-USB-1 1
28 XO 25MHz X1 7050 1
29 DS3231 U9 SO16W 1
30 WIRE_CONNECTION_III_RevE_Date15jun2010 WC1 0805 1
31 OLED 1.3" DISP1 SSH1106 1.3IN 128X64 I2C (HOLES) 1
32 33k R15 0805 1
33 10k R3,R20,R2 0805 3
34 15k R16 0805 1
35 1k R4 0805 1
36 5k6 R17 0805 1
37 2k2 R18 0805 1
38 47k R1 0805 1
39 26MHZ X4 OSC 2520 4P/6P 1
40 Ctrl J1 HDR-M-2.54_2X8 1
41 Encoder SW1 BOURNS_PEC11R-4XXXF-SXXXX 1
42 MINI360BUCK U20 MINI360BUCK 1
43 CR2032-BS-2-1 B1 BAT-TH_BS-2-1 1

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