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STD Nano VFO 3.1 square

License: GPL 3.0

Mode: Editors' pick

Cloned from Nano VFO 3.1

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Update time: 2023-07-12 11:52:59
Creation time: 2021-07-25 09:40:38
Description
* CPU: Atmega328P * PLL: Si5351 and/or Si570 * Display: OLED 1.3" 128/132x64, OLED 0.96" 128x64 * Encoder: mechanic rotary or AS5600 magnetic encoder * Keypad: 4+1 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://www.ur5ffr.com/viewtopic.php?t=277
Design Drawing
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ID Name Designator Footprint Quantity
1 0.1u C1,C2,C4,C5,C6,C9,C10,C11,C14,C16 0805 10
2 0.1 C3,C64,C65 0805 3
3 100u C7,C17 CAP-D6.3XF2.5 2
4 470u C8 CAP-D6.3XF2.5 1
5 0.01 C12,C13 0805 2
6 1u C15 0805 1
7 0.1 C63 C0603 1
8 10u C66 0805 1
9 OLED 1.3" DISP1 SSH1106 1.3IN 128X64 I2C (HOLES) 1
10 I2C Ext H4 DIP-1X4P-2.54MM-M 1
11 Ctrl J1 HDR-M-2.54_2X8 1
12 Bands J2 HDR-M-2.54_2X5 1
13 VFO Out J3 HDR-M-2.54_2X3 1
14 Encoder J4 HDR-M-2.54_1X5 1
15 Enable Ext Power P1 HDR-2X1/2.54 1
16 USB Pwr P2 HDR-2X1/2.54 1
17 Power 6V..12V P8 HDR-2X1/2.54 1
18 47k R1 0805 1
19 10k R2,R3,R20 0805 3
20 1k R4 0805 1
21 4k7 R10,R11 0805 2
22 33k R15 0805 1
23 15k R16 0805 1
24 5k6 R17 0805 1
25 2k2 R18 0805 1
26 1k R30,R32 R0603 2
27 10k R33 R0603 1
28 Key 1 SW-2SWITCH,SW-3SWITCH,SW-4SWITCH,SW-5SWITCH SW4-6.2X6.2X5.0MM DIP BUTTON 4
29 Si5351A-A-GT U2 MSOP10 1
30 74HC595 U3 SOP-16_150MIL 1
31 AMS1117-5.0 U6 SOT-223-3LEAD_TABPIN2 1
32 AMS1117-3.3 U10 SOT-223-3LEAD_TABPIN2 1
33 CH340G U17 SOIC-16_150MIL 1
34 ATMEGA328_TQFP U18 TQFP32 1
35 micro USBFemale USB1 MICRO-USB-1 1
36 WIRE_CONNECTION_III_RevE_Date15jun2010 WC1 0805 1
37 XO 25MHz X1 XO 7050 3025 1
38 25MHz XTAL1 HC-49U-PTH 1
39 16MHz Y1 3213 1
40 12MHz Y2 3213 1

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