usb controller circuit with pcm2902

This small PCB, named Multiuse Tiny1, was originally designed to convert NES/SNES controllers to USB. Given the limited space inside an SNES controller, the PCB was designed to be as compact as possible. The design has evolved over time, accommodating...

PCM1794A audio DAC

A transformer with two separate 12V secondary windings is required for the power supply. If the transformer does not have a third separate winding, the supply input of the S/PDIF decoder must be connected in parallel to the positive winding...

usb data logger

The Vinculum board is controlled using DOS commands. Each time a command is sent, if executed successfully, the board responds with "D:>", indicating readiness for the next command. Sending commands faster than the Vinculum board can execute them, without waiting...

Secure USB Time-Stamp for Data-Logging

This project implements a USB device that provides a real-time clock for time-stamping events in a non-networked embedded computer environment. For embedded applications requiring periodic time-stamping (such as entry-system logs and configuration audit logs), an accurate real-time clock is necessary,...

10 Bit analog to digital converter

Study the Analog to Digital capabilities of Atmel ATtiny26. This tiny but mighty IC is really a miracle. One special thing is the internal 10-inputs multiplexed ADC circuit which can convert analog voltages to bytes. This check circuit uses only...

ADC In An FPGA

This content is highly technical and involves Analog-to-Digital Converters (ADCs), Field Programmable Gate Arrays (FPGAs), and advanced electrical design. If this topic does not resonate with you, it is advisable to skip the remainder of this blog post. An update:...

USB08 HC908JB8 USB Reference Design

The primary target audience of the USB08 Reference Design consists of developers focused on microcontroller firmware and hardware, as well as those dealing with Windows driver and application software issues. USB (Universal Serial Bus) serves as a standardized bus interface...

Autoranging Circuit

To extend the measurement range of an available ADC (analog to digital converter), autoranging can be utilized. If implemented on multiplexed input, this... Autoranging is a technique employed in electronic measurement systems to automatically adjust the range of an analog-to-digital converter...

Flash ADC

Also known as the parallel A/D converter, this circuit is the simplest to understand. It consists of a series of comparators, each comparing the input signal to a unique reference voltage. The outputs of the comparators connect to the inputs...