LS1043A Residential Gateway Reference Design

OpenWRT Residential Gateway Home Router Platform.

Schematic PCB

Software and hardware open source portable monitor CatSniffer (schematic diagram, PCB, source code, etc.)

This board is a Swiss Army Knife for IoT security researchers, developers, and enthusiasts. The board can be used with different types of software, including third-party sniffers such as SmartRF Packet Sniffer, Sniffle, zigbee2mqtt, Z-Stack-firmware, Ubiqua Protocol Analyzer, our custom firmware, or you can even Specific software requires writing your own software.

Schematic PCB

100 W automotive preregulator, non-isolated, synchronous buck reference design based on NCV881930

30 W Automotive 410 kHz Preregulator, Non-Isolated, Synchronous Buck Reference Design Based on NCV881930

Broadband amplifier based on 51 microcontroller

This design uses the variable gain wideband amplifier VCA810 to increase the gain and expand the AGC control range, and uses software compensation to reduce the step interval of the gain adjustment and improve the accuracy. The input part uses a high-speed voltage feedback op amp 0 P A842 as a follower to increase the input impedance, and a protection circuit is added to the input part without affecting performance. Various anti-interference measures are used to reduce noise and suppress high-frequency self-excitation. The power output part is made of discrete components. The passband of the entire system is 4.4 k Hz ~ 8.4 MH z, with a minimum gain of 0 dB and a maximum gain of 70 dB. The gain step is ld B/6dB/arbitrarily set. The error between the preset gain and the actual gain below 60 dB is less than 0.2 dB. The effective value of the undistorted output voltage reaches 10.1 V, and the AGC control range is 52 dB when outputting 4.5 ~ 5.5 V.

Schematic PCB

MPC8379ERDB: MPC8379E-RDB reference design platform

The MPC8379E-RDB is a highly integrated reference design board based on the NXP MPC837x using Power Architecture® ^technology .

SC18IS606-EVB: I ² C to SPI Bridge Evaluation Board ^new

CN0243

High dynamic range RF transmitter signal chain with external single frequency reference for DAC sampling clock and IQ regulator local oscillator generation

Schematic PCB

CN0205

I/Q modulator ADL5375 interfaces with dual-channel, 1.2 GSPS high-speed DAC AD9122

Schematic PCB

Implementing ultra-low-cost dual fiber optic network card 100BASE-FX based on Raspberry Pi microcontroller (open source software and hardware)

The Raspberry Pi microcontroller itself does not have an Ethernet MAC, but it can be easily implemented through the programmable IO of the Raspberry Pi. The programmable PIO of the Raspberry Pi microcontroller that costs 5 yuan a piece is indeed a miracle, with IO below 250MHz. Control everything.

Schematic PCB

CN0245

Wideband LO PLL frequency synthesizer with simple interface to quadrature demodulator

Schematic PCB

RX5808 receiver ESP32 version

The hardware design adopts upper and lower layer design. The upper layer is the control circuit and the lower layer is the dual receiving circuit. The interface design is based on LVGL.

Schematic PCB

CN0238

High performance, 12-bit, 500 MSPS wideband receiver with anti-aliasing filter

Schematic PCB

Real-time communication via Ethercat protocol, multi-axis position servo driver solution based on STDRIVE101, STH270N8F7-2, and STM32F767ZI

The STEVAL-ETH001V1 servo drive evaluation board has been developed to address three-phase PMSM applications oriented to multi-axial position control and connectivity

Schematic PCB

STuW81300 Wideband RF Microwave VCO and PLL Evaluation Kit

Evaluation Kit for STuW81300 Wideband RF Microwave VCO and PLL

Schematic PCB

PicoCray: 9 Raspberry Pi pico RP2040 for parallel computing

The PicoCray project connects multiple Raspberry Pi Pico microcontroller modules into a parallel architecture, utilizing the I2C bus to communicate between nodes

Schematic PCB

Li-ion battery monitoring and fuel gauge evaluation board based on STC3100

Lithium-ion battery monitoring and gas meter evaluation board based on STC3100

Schematic PCB

STM32L4 discovery kit for IoT node applications including Low Power Wireless, BLE, NFC, SubGHz, Wi-Fi

STM32L4 Discovery Kit including IoT nodes, low-power wireless solutions, BLE, NFC, SubGHz and Wi-Fi

Schematic PCB

CN0232

Minimize frequency synthesizer spurious output from integrated VCO and external PLL circuitry

Schematic PCB

OM7960: Low noise amplifier BFU520W, BFU530W and BFU550W customer evaluation kit for SOT323 packaged transistors