博文

目前显示的是 三月, 2025的博文

DIY Project: Designing an FSK Transceiver Using AM7911DI

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In digital communication, Frequency Shift Keying (FSK) modulation is widely used due to its noise resistance and efficiency in transmitting data over various transmission channels. In this article, we will explore how to build a simple FSK transceiver using the AM7911DI chip from Advanced Micro Devices (AMD). Introduction to AM7911DI The AM7911DI is an FSK modem chip manufactured by AMD. This chip is designed to provide an efficient data communication solution, integrating essential functions for FSK modulation and demodulation. With stable performance and high efficiency, the AM7911DI is an ideal choice for data transmission applications in DIY projects. Project Objective The goal of this project is to build an FSK transceiver using the AM7911DI, enabling the transmission and reception of digital data over a communication channel. This transceiver can be applied in simple data communication systems, such as data transfer between two microcontrollers or between a computer and an extern...

DIY Electronics Project: Building a Memory-Based Digital Clock Using the HM6116ALP-3

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Introduction In the world of DIY electronics, creating a simple, functional project that combines various fundamental components can be both educational and rewarding. One such project involves the use of a dynamic random access memory (DRAM) chip, the HM6116ALP-3 , in conjunction with a basic digital clock circuit. In this article, we’ll delve into how to design and build a Memory-Based Digital Clock , which will help you understand the versatility of the HM6116ALP-3 while giving you an enjoyable and practical electronic project to work on. The HM6116ALP-3 is a 2K × 8-bit static RAM (SRAM) chip that provides ample storage for small-scale applications. Though SRAM is typically used in devices for temporary storage, in this project, we’ll use it to store time-related data. By leveraging the memory chip’s storage capabilities and combining it with a simple clock circuit, you can create a digital clock with custom time display features, all while learning about how memory works in electro...