Nano VFO 3

4 days ago

Profile:Powerfull digital VFO for homebrew tranceiver

Open source license: GPL 3.0

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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

Documents

BOM

ID Name Designator Footprint Quantity
1 CH340G U17 SOIC-16_150MIL 1
2 0.1u C9,C14,C1,C10,C11,C2,C6,C5 0805 8
3 Key 1 SW-5SWITCH,SW-4SWITCH,SW-3SWITCH,SW-2SWITCH SW4-6.2X6.2X5.0MM DIP BUTTON 4
4 Si5351A-A-GT U2 MSOP10 1
5 0.01 C13,C12 0805 2
6 Enable Ext Power P1 HDR-2X1/2.54 1
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 0.1 C63 C0603 1
13 1k R32,R30 R0603 2
14 12MHz Y2 3213 1
15 4k7 R11,R10 0805 2
16 470u C8 CAP-D6.3XF2.5 1
17 AMS1117-5.0 U6 SOT-223-3LEAD_TABPIN2 1
18 Power 6V..12V P8 HDR-2X1/2.54 1
19 100u C7,C17 CAP-D6.3XF2.5 2
20 AMS1117-3.3 U10 SOT-223-3LEAD_TABPIN2 1
21 25MHz XTAL1 HC-49U-PTH 1
22 VFO Out J2 HDR-M-2.54_2X2 1
23 I2C Ext H4 DIP-1X4P-2.54MM-M 1
24 micro USBFemale USB1 MICRO-USB-1 1
25 XO 25MHz X1 7050 1
26 DS3231 U9 SO16W 1
27 WIRE_CONNECTION_III_RevE_Date15jun2010 WC1 0805 1
28 OLED 1.3" DISP1 SSH1106 1.3IN 128X64 I2C (HOLES) 1
29 5k6 R17 0805 1
30 15k R16 0805 1
31 2k2 R18 0805 1
32 10k R20 0805 1
33 33k R15 0805 1
34 26MHZ X4 OSC 2520 4P/6P 1
35 Ctrl J1 HDR-M-2.54_2X8 1
36 Encoder SW1 BOURNS_PEC11R-4XXXF-SXXXX 1
37 MINI360BUCK U20 MINI360BUCK 1
38 CR2032-BS-2-1 B1 BAT-TH_BS-2-1 1

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