ADC DAC

Digital-to-Analog and Analog-to-Digital Conversion in Microcontrollers

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Digital-to-Analog and Analog-to-Digital Conversion in Microcontrollers

The digital-to-analog (DAC) and analog-to-digital (ADC) conversion in microcontrollers is a key technology that connects digital systems with the analog world. 1. Basic Concepts 1. DAC (Digital-to-Analog Converter) Function: Converts digital signals into analog signals (such as voltage or current). Application Scenarios: Driving motors, audio output, LED dimming, etc. Implementation Methods: Weighted resistor networks, R-2R … Read more

High-Speed Digital-to-Analog Converters (DAC) – Domestic Alternatives

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High-Speed Digital-to-Analog Converters (DAC) - Domestic Alternatives

ChipBai Microelectronics (Beijing) Co., Ltd. ChipBai Microelectronics (Beijing) Co., Ltd. was established in 2014, adhering to the philosophy that “creating value for customers is the value of our existence,” with the entrepreneurial mission of “specialized development,” “serving with chips,” and “creating a future with chips.” After years of development, it obtained the High-tech Enterprise Certificate … Read more

18 Yuan Type-C Wired Earphones with Built-in DAC Chip and OTA Firmware Upgrade

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18 Yuan Type-C Wired Earphones with Built-in DAC Chip and OTA Firmware Upgrade

Yesterday, I wrote about a few yuan original Dao earphones (click to review), which are currently recognized as the highest cost-performance “flat-head earphones” with a 3.5mm interface suitable for old phones, old MP3 players, and other devices. However, the Type-C version is priced at nearly 20 yuan, which diminishes its cost-performance ratio.Some people asked if … Read more

Microcontroller: Choosing Between DAC and PWM for Audio Output? Test Data Reveals the Answer!

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Microcontroller: Choosing Between DAC and PWM for Audio Output? Test Data Reveals the Answer!

Hello everyone, I am Xiao Chen. Today, let’s discuss a practical topic: how can microcontrollers output audio signals? Currently, there are two mainstream solutions: directly using a DAC (Digital-to-Analog Converter) or using PWM (Pulse Width Modulation) for analog output. Both methods have their pros and cons, and many beginners can easily get confused. Today, I … Read more

Common MCU Products with DAC

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Common MCU Products with DAC

In the open-source oscilloscope differential measurement probe – PD150, there is an MCU with DAC functionality that can provide bias voltage compensation for operational amplifiers.Recently, I have been working on this product It looks very nice but it is a PIC (ATSAMD10D14A), which is not well-suited for domestic use (it’s my fault for not knowing … Read more

Texas Instruments: New Products Priced Over 1000 Yuan

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Texas Instruments: New Products Priced Over 1000 Yuan

Synthesizers and Clock Chips LMX2624 – SP: A space-grade broadband synthesizer with phase synchronization capability, supporting JESD204B, operating from 5MHz to 28GHz. LMX1860 – SEP: A radiation-hardened 15GHz RF buffer, frequency multiplier, and divider with SYSREF (supporting JESD204B/C) and FPGA clock. LMX1205: A low-noise, high-frequency buffer/frequency multiplier/divider with JESD204 support and programmable clock delay. Analog-to-Digital … Read more

Texas Instruments: Aerospace-Grade Chips Priced Over 100,000 Yuan

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Texas Instruments: Aerospace-Grade Chips Priced Over 100,000 Yuan

Analog-to-Digital Converters (ADC) ADC12DJ3200QML-SP: Priced at 377,236.081 Yuan. This is a 12-bit analog-to-digital converter (ADC) with radiation hardening assurance (RHA) and compliant with QMLV standards, capable of withstanding a radiation dose of 300krad. Its dual-channel sampling rate reaches 3.2GSPS, and single-channel can go up to 6.4GSPS, allowing direct sampling of input frequencies exceeding 10GHz, suitable … Read more

Annual Contribution from RFSoC.net Community!

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Annual Contribution from RFSoC.net Community!

The RFSoM216 module offers the highest number of RF channels in the industry, equipped with a 16-channel RF Digital-to-Analog Converter (RF-DAC) with a sampling rate of 9.85 GSPS and a 16-channel RF Analog-to-Digital Converter (RF-ADC) with a sampling rate of 2.5 GSPS, enabling the entire RF signal chain to achieve the highest signal processing bandwidth. … Read more

Summary of Common Issues in Embedded Development

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Summary of Common Issues in Embedded Development

1 Small External Buses such as Microcontrollers Microcontrollers (MCUs) generally have external buses that can be used to connect true color LCDs (asynchronous bus interface TFT displays). Most mobile phones use synchronous interfaces (first providing an address, then continuously sending data). 2 Application Scenarios of ARM Processors ARM7: Industrial control, mobile phones; ARM9: Image display; … Read more