2 layers70 × 99 mm
2 layers70 × 100 mm
CRX1
etherkit/CRX14CRX1 Superheterodyne Receiver
- Size
- 70 × 100 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 149
- Nets
- 73
- Pads
- 313
- Tracks, vias
- 626, 24
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 3
- Created
- 9 Jun 2013
- Updated
- 27 Jul 2013
Overview
CRX1 is an open-source printed circuit board by etherkit, from the etherkit/CRX1 repository on GitHub. It is a 2-layer board of 70 × 100 mm with 149 parts on 73 nets, routed with 626 tracks and 24 vias.
It is built around the MMBT4401, LL4148 and MMBT4403, with the BAV99, MMBFJ310 and BAT46W among its other parts. Its parts include 51 capacitors, 42 resistors, 17 transistors, 10 connectors and 9 diodes.
Main components
9
MMBT4401
SOT-23-55℃~+150℃ 1 NPN 100nA 250MHz 350mW 400mV 40V 600mA 6V 80 NPN SOT-23 Bipolar (BJT) ROHSDiodes IncorporatedBipolar (BJT)
LL4148
LL-341 Independent 1V@10mA 200mA 4A 4ns 500mW 5uA@75V 75V LL-34 Switching Diodes ROHSMDDSwitching DiodesMMBT4403
SOT-23-55℃~+150℃ 1 PNP 100 100nA 200MHz 300mW 400mV 40V 5V 600mA PNP SOT-23 Bipolar (BJT) ROHShongjiachengBipolar (BJT)BAV99
SOT-231 Pair Series Connection 1.25V@150mA 100V 215mA 250mW 4A 4ns 500nA@80V SOT-23 Switching Diodes ROHSNexperiaSwitching DiodesMMBFJ310
SOT-23-55℃~+150℃ 1 N-channel 25V 2V 350mW 60mA N-Channel SOT-23 JFETs ROHSonsemiJFETs
BAT46W
SOD-123-55℃~+125℃ 1 Independent 100V 150mA 2uA@75V 450mV@10mA 750mA SOD-123 Schottky Diodes ROHSDiodes IncorporatedSchottky Diodes
BZV55-B15
SOD-80CVoltage Regulator DiodeNexperiaUncategorisedBZV55-B3V3
SOD-80C-65℃~+200℃ 1 Independent 3.23V~3.37V 3.3V 500mW 5uA@1V 85Ω SOD-80C Zener Diodes ROHSNexperiaZener Diodes
GS1M
SMA(DO-214AC)-55℃~+150℃ 1 Independent 1.1V@1A 1A 1kV 30A 5uA SMA(DO-214AC) Diodes - General Purpose ROHSMDDDiodes - General Purpose
Parts
149| Qty | Value | Footprint | References |
|---|---|---|---|
| 14 | 100n | SM0805-LARGE | C5, C7, C12, C15, C18, C22, C24, C27, C28, C31, C38, C39, C40, C41 |
| 10 | 100k | SM0805-LARGE | R3, R4, R7, R8, R18, R23, R24, R26, R27, R40 |
| 9 | 47 | SM0805-LARGE | C3, C44, R5, R9, R13, R15, R20, R33, R47 |
| 5 | 10k | SM0805-LARGE | R19, R31, R32, R37, R39 |
| 5 | 1u MLCC | SM0805-LARGE | C29, C32, C33, C35, C37 |
| 5 | MMBT4401 | SOT23-MMBT440X | Q2, Q11, Q13, Q15, Q16 |
| 4 | 1k | SM0805-LARGE | R10, R16, R21, R42 |
| 4 | 2.2k | SM0805-LARGE | R6, R11, R12, R35 |
| 4 | 2N7002 | SOT23-2N7002 | Q6, Q7, Q8, Q14 |
| 4 | 4.032 MHz | AT49 | X1, X2, X3, X4 |
| 4 | 4.7k | SM0805-LARGE | R34, R41, R45, R46 |
| 4 | 68 | SM0805-LARGE | C4, C6, C16, C17 |
| 4 | P*** | 1pin | 1PIN, 1PIN, 1PIN, 1PIN |
| 3 | 10u | CAP-ELEC-5MM | C23, C25, C34 |
| 3 | 3.3k | SM0805-LARGE | R2, R38, R43 |
| 3 | 45 | TRIMCAP-MURATA | C2, C14, C20 |
| 3 | LL4148 | SOD80 | D7, D8, D9 |
| 3 | MMBT4403 | SOT23-MMBT440X | Q10, Q12, Q17 |
| 2 | 100u | CAP-ELEC-8MM | C42, C43 |
| 2 | 10n | SM0805-LARGE | C26, C36 |
| 2 | 11.059 MHz | AT49 | X5, X6 |
| 2 | 2.2 | SM0805-LARGE | R48, R49 |
| 2 | 22k | SM0805-LARGE | R25, R28 |
| 2 | 33 | SM0805-LARGE | C8, C9 |
| 2 | 470 | SM0805-LARGE | R17, R22 |
| 2 | 680 | SM0805-LARGE | R14, R44 |
| 2 | BAV99 | SOT23-DIODEDUAL | D1, D2 |
| 2 | BF998 | SOT143B | Q4, Q5 |
| 2 | MMBFJ310 | SOT23-MMBFJ310 | Q1, Q3 |
| 2 | T37-2 25T | T37-V | L4, L5 |
| 1 | +12 VDC | SIL-2 | J4 |
| 1 | 100 | SM0805-LARGE | C11 |
| 1 | 10u | SM0805-LARGE | L3 |
| 1 | 150 | SM0805-LARGE | C21 |
| 1 | 1u | SM0805-LARGE | L2 |
| 1 | 22 | SM0805-LARGE | C13 |
| 1 | 220 | SM0805-LARGE | C10 |
| 1 | 39 | SM0805-LARGE | C1 |
| 1 | 4.7 | SM0805-LARGE | C19 |
| 1 | 4.7u MLCC | SM0805-LARGE | C30 |
| 1 | 47k | SM0805-LARGE | R30 |
| 1 | AF Gain | SIL-3 | R29 |
| 1 | ANT | SIL-2 | J1 |
| 1 | BAT46W | SOD123 | D4 |
| 1 | BFO | SIL-1 | P2 |
| 1 | BZV55-B15 | SOD80 | D5 |
| 1 | BZV55-B3V3 | SOD80 | D6 |
| 1 | EXT VFO | SIL-2 | J2 |
| 1 | FT37-43 6T:20T | T37-STEPDOWN | T1 |
| 1 | GND | SIL-1 | P5 |
| 1 | GS1M | DO-214AC | D3 |
| 1 | IRLML9301 | SOT23-2N7002 | Q9 |
| 1 | Key Line | SIL-3 | J3 |
| 1 | LOGO | OSHWLogo4mm | G*** |
| 1 | Phones | SIL-3 | J5 |
| 1 | Sidetone | TS53YL-VISHAY | R36 |
| 1 | Sidetone | SIL-1 | P4 |
| 1 | Sidetone | SIL-2 | JP2 |
| 1 | T50-2 47T | T50-V | L1 |
| 1 | Tune | SIL-3 | R1 |
| 1 | VXO | SIL-1 | P3 |
| 1 | VXO Power | SIL-2 | JP1 |
| 1 | Val** | EtherkitLogoSmall | Ref** |
| 1 | XTAL GND | SIL-1 | P1 |
Questions
How big is the CRX1 PCB?
It measures 70 × 100 mm and has 2 copper layers, 1.6 mm thick.
What parts does the CRX1 use?
149 parts, built around the MMBT4401, LL4148, MMBT4403 and BAV99. 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 CRX1 KiCad files?
From the etherkit/CRX1 repository on GitHub, at the commit this page was made from: the board is pcb/CRX1.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the CRX1 design in my own project?
Its repository states no licence, so its author keeps all rights: ask etherkit before reusing the design.
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