laser_nephelometer
sai-ydev
An RP2350 based nephelometer
Components (41)
| Reference | Value | Description |
|---|---|---|
| Q1,Q2 | 2N7002 | 0.115A Id, 60V Vds, N-Channel MOSFET, SOT-23 |
| U1 | USBLC6-2SC6 | Very low capacitance ESD protection diode, 2 data-line, SOT-23-6 |
| U2 | AP2112K-3.3 | 600mA low dropout linear regulator, with enable pin, 3.8V-6V input voltage range, 3.3V fixed positive output, SOT-23-5 |
| U3 | RP2354B | A microcontroller by Raspberry Pi, dual CPU architecture (ARM Cortex-M33 / RISC-V Hazard3), 150MHz, 2MB flash, 520KB SRAM, 12 PIO state machines, VQFN-80 |
| U4 | APS6404L-3SQR-ZR | DRAM IoT RAM 64Mb QSPI (x1,x4) SDR 133/84MHz, RBX, 3V, USON8 |
| U5,U6,U8 | LMV358 | Dual Low-Voltage Rail-to-Rail Output Operational Amplifiers, SOIC-8/SSOP-8 |
| U7 | ADS1115IDGSR | 16-bit, 860-SPS, 4-channel, delta-sigma ADC with PGA, oscillator, VREF, comparator and I2C |
| U9 | RV-3028-C7 | Realtime Clock/Calendar I2C Interface, Extreme Low Power, 1.1 V to 5.5 V, MicroCrystal C7 |
| U10 | RM2 | |
| U11 | XTSD04GLGEAG | Flash Memory Card 4Gbit 2.7V to 3.6V SD Card 8-Pin LGA |
| U16 | SN74LVC1T45DBV | Single-Bit Dual-Supply Bus Transceiver With Configurable Voltage Translation and 3-State Outputs, SOT-23-6 |
| C1,C2,C6-C19,C24,C30,C31,C34,C36-C38,C40-C46 | 0.1uF | Unpolarized capacitor |
| C3-C5,C27,C35 | 10uF | Unpolarized capacitor |
| C20-C23 | 4.7uF | Unpolarized capacitor |
| C25,C26 | 15pF | Unpolarized capacitor |
| C28,C32 | 100pF | Unpolarized capacitor |
| C29 | 1.0pF | Unpolarized capacitor |
| C33 | 10pF | Unpolarized capacitor |
| C39 | 0.1F | Capacitor Double Layer SMD 0.1F 3.3V 3.2x2.5mm |
| D1 | LED | Light emitting diode |
| D2 | Red | Light emitting diode |
| FB1 | 600 @ 100MHz | Ferrite bead |
| J1 | TYPE-C-31-M-12 | USB Connectors 24 Receptacle 1 8.94*7.3mm RoHS |
| J2,J4 | SM03B-SRSS-TB_LF__SN_ | Connector Header Surface Mount, Right Angle 3 position 0.039 (1.00mm) |
| J3 | 532610671 | Conn Shrouded Header (4 Sides) HDR 6 POS 1.25mm Solder RA Side Entry SMD PicoBlade™ T/R |
| L1 | 2.2nH | Chip inductor |
| L2 | AOTA-B201610S3R3-101-T | Power Inductors - SMD IND 3.3uH |
| R1,R2 | 5.1k | Resistor |
| R3,R19 | 33 | Resistor |
| R4,R5,R7,R11,R12 | 1k | Resistor |
| R6,R14,R22 | 10k | Resistor |
| R8,R9,R13 | 100k | Resistor |
| R10 | 10M | Resistor |
| R15,R16 | 2.2k | Resistor |
| R17 | 36k | Resistor |
| R18 | 22k | Resistor |
| R20,R25-R27 | 100 | Resistor |
| R21,R23 | 470 | Resistor |
| R24 | 300 | Resistor |
| SW1,SW2 | KMR221GLFS | Single Pole Single Throw (SPST) switch |
| Y1 | ABM8-272-T3 | 12 MHz ±30ppm Crystal 10pF 50 Ohms 4-SMD, No Lead |