4 layers60.8 × 64.8 mm
4 layers53.2 × 138.8 mm
SndLocket
Kreyl/LocketSound- Size
- 53.2 × 138.8 mm
- Copper layers
- 4
- Thickness
- 1 mm
- Parts
- 226
- Nets
- 173
- Pads
- 836
- Tracks, vias
- 4,732, 495
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 20 Jan 2019
- Updated
- 10 Feb 2022
Overview
SndLocket is an open-source printed circuit board by Kreyl, from the Kreyl/LocketSound repository on GitHub. It is a 4-layer board of 53.2 × 138.8 mm with 226 parts on 173 nets, routed with 4,732 tracks and 495 vias.
It is built around the STM32L476VET6, SN74LVC07AD and CC1101RGP, with the MFRC52202HN1, IRLML6401 and AP7331-WG among its other parts. Its parts include 93 capacitors, 62 resistors, 9 transistors, 8 inductors and 5 switches. It belongs with the STM32 boards of this library.
Main components
12
STM32L476VET6
LQFP-100(14x14)-40℃~+85℃ 1.71V~3.6V 128KB 12bit 12bit 32 Bit 512KB 80MHz 82 ARM Cortex-M4 Built-in FLASH LQFP-100(14x14) Microcontrollers (MCU/MPU/SOC) ROHSSTMicroelectronicsMicrocontrollers (MCU/MPU/SOC)
SN74LVC07AD
SOIC-14-40℃~+125℃ 1 1.65V~5.5V 10uA 2.6ns@5V,50pF 24mA 6 74LVC Open-drain Unidirectional SOIC-14 Buffers, Drivers, Receivers, Transceivers ROHSTexas InstrumentsBuffers, Drivers, Receivers, Transceivers
CC1101RGP
QFN-20-EP(4x4)-116dBm -40℃~+85℃ 1.8V~3.6V 12.3mA 12dBm 14.3mA 600Kbps ISM SPI QFN-20-EP(4x4) RF Transceiver ICs ROHSTexas InstrumentsRF Transceiver ICs
MFRC52202HN1
HVQFN-32-EP(5x5)106Kbit/s、212Kbit/s、424Kbit/s、848Kbit/s 13.56MHz 2.5V~3.6V Built-in antenna driver、Data verification、Low power wake-up I2C,SPI,UART ISO 14443A,MIFARE HVQFN-32-EP(5x5) RFID ICs ROHSNXP SemiconductorsRF Chips
IRLML6401
SOT-23-55℃~+150℃ 1 P-Channel 1.3W 125pF 12V 15nC@5V 180pF 4.3A 830pF 85mΩ@1.8V 950mV P-Channel SOT-23 MOSFETs ROHSKEXINMOSFETs
AP7331-WG
SOT-25-40℃~+85℃@(Ta) 1 300mA 300mV@(300mA) 55uA 65dB@(100Hz) 6V 800mV~5V Adjustable Over Current Protection、Short Circuit Protection、Thermal Shutdown Positive SOT-25 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSDiodes IncorporatedVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
NSR0320MW2
SOD-323-55℃~+125℃ 1 Independent 1A 20V 500mV@900mA 50uA@15V 5A SOD-323 Schottky Diodes ROHSonsemiSchottky Diodes
BLM15AG102SN1
04021 1kΩ@100MHz 300mA 650mΩ ±25% 0402 Ferrite Beads ROHSMurataFerrite Beads
LFB212G45SG8C341
SMD-4P,1.2x2mm-40℃~+85℃ 1.8dB 2.45GHz 50Ω SMD-4P,1.2x2mm Ceramic Filters ROHSMurataCeramic FiltersMMBT2222
SOT-231 NPN 1uA 300mV 300mW 400 40V 600mA 6V NPN SOT-23 Bipolar (BJT) ROHSYONGYUTAIBipolar (BJT)
TEMT7000X01
0805-40℃~+100℃ 20V 850nm 0805 Phototransistors ROHSVishay IntertechnologyPhototransistors
TP4056
ESOP-8-40℃~+85℃ 1 1A 35uA 4.2V 4V~6.5V Charging IC Lithium Battery Support Support 恒流充电、恒压充电、涓流充电、自动再充电、充电终止、可编程充电电流、软启动、欠压锁定 ESOP-8 Battery Management ROHSUMWBattery Management
Parts
226| Qty | Value | Footprint | References |
|---|---|---|---|
| 40 | 0.1u | Capacitors:CAP_0402 | C3, C11, C12, C15, C19, C25, C33, C37, C40, C41, C42, C46, C47, C48, C49, C51 +24 |
| 17 | 10k | Resistors:RES_0603 | R1, R3, R5, R11, R21, R22, R25, R26, R28, R29, R34, R36, R38, R42, R52, R63 +1 |
| 16 | 1k | Resistors:RES_0603 | R4, R14, R23, R33, R35, R37, R39, R43, R44, R45, R46, R47, R48, R54, R58, R61 |
| 16 | 1u | Capacitors:CAP_0603 | C4, C13, C17, C18, C21, C23, C26, C31, C50, C57, C61, C63, C68, C69, C87, C93 |
| 10 | 100k | Resistors:RES_0603 | R2, R12, R13, R16, R17, R18, R41, R53, R56, R57 |
| 10 | 10u | Capacitors:CAP_0603 | C5, C14, C24, C35, C67, C70, C83, C85, C86, C92 |
| 8 | 18pF | Capacitors:CAP_0603 | C1, C2, C27, C28, C29, C30, C34, C36 |
| 7 | 100R | Resistors:RES_0603 | R49, R50, R51, R55, R59, R60, R62 |
| 6 | * | Capacitors:CAP_0603 | C43, C44, C52, C53, C59, C60 |
| 5 | IRLML6401 | SOT:SOT23-3 | Q1, Q2, Q3, Q4, Q8 |
| 4 | BLM15 | Inductors:IND_0402 | L1, L2, L7, L8 |
| 4 | HOLE_METALLED | PCB:Hole2d2_out3d5mm | HOLE1, HOLE2, HOLE3, HOLE4 |
| 4 | REFPOINT | PCB:REF_POINT_1MM | RP1, RP2, RP3, RP4 |
| 4 | TESTPOINT | PCB:TESTPOINT_1MM | TP1, TP2, TP9, TP10 |
| 3 | 10n | Capacitors:CAP_0603 | C7, C10, C16 |
| 3 | 56k | Resistors:RES_0603 | R10, R24, R30 |
| 3 | BUTTON | BtnsSwitches:BTN_IT1198 | SW3, SW4, SW5 |
| 2 | * | Capacitors:CAP_0402 | C75, C78 |
| 2 | 220pF | Capacitors:CAP_0603 | C38, C39 |
| 2 | 560nH | Inductors:IND_0805 | L3, L4 |
| 2 | 6.8pF | Capacitors:CAP_0603 | C20, C22 |
| 2 | AP7331 | SOT:SOT23-5 | DA1, DA4 |
| 2 | CONN_1 | PCB:Oval3x1.5 | XL6, XL7 |
| 2 | MCP1700 | SOT:SOT23-3A | DA3, DA7 |
| 2 | NSR0320 | Diodes:SOD323 | D1, D2 |
| 2 | SN74LVC07 | SO_DIL_TSSOP:SO14 | DD4, DD5 |
| 1 | * | Inductors:IND_0402 | L6 |
| 1 | 0R2 | Resistors:RES_1206 | R8 |
| 1 | 1.2k | Resistors:RES_0603 | R15 |
| 1 | 100u | Capacitors:CAP_1206 | C84 |
| 1 | 12MHz | Quartz:03225C4 | XTAL1 |
| 1 | 150R | Resistors:RES_0603 | R6 |
| 1 | 1M | Resistors:RES_0603 | R7 |
| 1 | 1nF | Capacitors:CAP_0603 | C32 |
| 1 | 2.7k | Resistors:RES_0603 | R27 |
| 1 | 200k | Resistors:RES_0603 | R9 |
| 1 | 22pF | Capacitors:CAP_0402 | C45 |
| 1 | 26MHz | Quartz:03225C4 | XTAL4 |
| 1 | 27.12MHz | Quartz:03225C4 | XTAL3 |
| 1 | 27MHz | Quartz:03225C4 | XTAL5 |
| 1 | 2k | Resistors:RES_0603 | R40 |
| 1 | 30pF | Capacitors:CAP_0603 | C71 |
| 1 | 32768 | Quartz:03215C2 | XTAL2 |
| 1 | 330k | Resistors:RES_0603 | R19 |
| 1 | 47k | Resistors:RES_0603 | R20 |
| 1 | ANT_GENERAL | Antennas:LcktSnd_2d41 | ANT1 |
| 1 | ANT_PCB_MONO_2PIN | Antennas:LcktSnd_868 | ANT2 |
| 1 | AudioJackSimple | Connectors:AUDIO_CKX3_5_30 | XL5 |
| 1 | BALUN868JOHANSON | Radio:BALUN_JOHANSON868 | BLN1 |
| 1 | BAT | Installation:18650x1 | B1 |
| 1 | BLM15AG102SN1 | Inductors:IND_0402 | L5 |
| 1 | CC1101 | QFN_DFN:QFN20 | DD6 |
| 1 | CC256x | QFN_DFN:mrQFN76 | DD3 |
| 1 | CONN_2 | Connectors:SLD_2_2D5 | XL9 |
| 1 | CONN_4 | Connectors:PBS-4R | XL1 |
| 1 | CONN_6 | Connectors:PLS-6 | XL3 |
| 1 | CONN_MICROSD | Installation:MICROSD_EJECTOR_TFWF1 | XL4 |
| 1 | DIPx8 | BtnsSwitches:DIP_SMD_X8 | SW2 |
| 1 | LED_RGB 5050 | LEDs:LED_5050 | Q7 |
| 1 | LFB212G45SG8C341 | Radio:FLT_LFB21 | FLT1 |
| 1 | Logo | Pictures:Ostranna_12d7_10d1 | Logo1 |
| 1 | MFRC52202 | QFN_DFN:QFN32_EP_5x5_Pitch0.5mm | DD2 |
| 1 | MMBT2222 | SOT:SOT23-3 | Q9 |
| 1 | MOTOR_NO_CONTACTS | Installation:Motor_no_Contacts | M1 |
| 1 | Microphone | Connectors:PLS-2 | MIC1 |
| 1 | OpAmp | SO_DIL_TSSOP:SO8_150MIL | DA6 |
| 1 | RJ12 | Connectors:RJ11_TJ6_6P6C | XL8 |
| 1 | STM32L476VET6 | LQFP_TQFP:LQFP100 | DD1 |
| 1 | SWITCH | BtnsSwitches:SW_SS-1P2T_Housing | SW1 |
| 1 | TEMT7000 | Resistors:RES_1206 | Q5 |
| 1 | TP4056 | SO_DIL_TSSOP:SO8_150MIL | DA2 |
| 1 | TSOP4856 | Sensors:TSOP48xx | Q6 |
| 1 | USB_MICRO | Connectors:USBmicro_MOLEX_1050170001 | XL2 |
| 1 | WM8960 | QFN_DFN:QFN32_EP_5x5_Pitch0.5mm | DA5 |
Questions
How big is the SndLocket PCB?
It measures 53.2 × 138.8 mm and has 4 copper layers, 1 mm thick.
What parts does the SndLocket use?
226 parts, built around the STM32L476VET6, SN74LVC07AD, CC1101RGP and MFRC52202HN1. 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 SndLocket KiCad files?
From the Kreyl/LocketSound repository on GitHub, at the commit this page was made from: the board is SndLocket_hw/SndLocket.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the SndLocket design in my own project?
Its repository states no licence, so its author keeps all rights: ask Kreyl before reusing the design.
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