MAXREFDES161# is a high-performance frequency synthesizer capable of generating frequencies from 23.5MHz to 6GHz
72 W ultra-compact charger/adapter for appliances and industrial applications
This article introduces the framework structure and component modules of the design as well as the principles of each module. It also introduces the hardware design of each part, the software design of each part, and the software flow chart. The design is an intelligent LED desk lamp integrating multiple functions with STC89C52 microcontroller as the control core. The desk lamp realizes the function of automatically detecting whether there is someone in the room and automatically turning on/off; the desk lamp brightness has an adjustment function; it has a time display function; it has a temperature display function; and it has an alarm function. The hardware design is divided into eight parts, including the microcontroller control module, button module, desk lamp module, temperature module, clock module, alarm module, display module, and infrared sensing module. The microcontroller control uses STC89C52, the display module uses LCD1602C liquid crystal to display temperature, time, date, etc., the button module is used to adjust time, date, LED brightness, etc., the clock uses DS12C887 clock chip, and the desk lamp module uses 16 LEDs and uses a buzzer. The device emits an alarm sound, the temperature sensor uses a DS18B20 chip, and the human detection device uses a BIS0001 infrared thermal sensor. The software design is written in microcontroller C language and realizes all control functions.
The entire work is designed with only three buttons (one KEY1 on the GD32E231 board and two KEY2 and KEY3 on my stm32 board). In the game, KEY1 can be used to pause the game, and KEY2 and KEY3 are used to control the greedy snake. direction, KEY2 controls the snake to rotate clockwise, and KEY3 controls the snake to rotate in the forward direction.
LET9060S based RF power amplifier for 2-way radios and general wireless services
The add-on kit for the NTAG I²C+ Explorer Kit (Interconnected NFC Tag) contains Category 4, Category 5 and Category 6 Flex antennas.
This smartwatch can measure linear acceleration, rotational speed, heart rate and SpO2 (oxygen saturation) of the hand
12-Bit, 300 kSPS, Single Supply, Fully Isolated Data Acquisition System for ±10 V Input
45 W USB PD 3.0 Power Supply with 3.3 V – 11 V / 5 A (45 W Power-limited) PPS Output Using InnoSwitch3-PD PowiGaN (INN3879C-H803)
Integrating a battery-load switch function into a smart-charger IC greatly benefits low-cost applications. The DS2715 battery-charger IC intelligently senses battery loading after removal of the charge source to seamlessly maintain power to connected loads. This application note details examples of several application circuits that optimize the performance of the DS2715. Specifically, it presents a circuit for applications in which the DS2715 is connected to noncontinuous loads, and a circuit for powering the load directly from batteries.
TS472 based low noise microphone preamplifier demo board, 2 V deviation
Low-cost NXP Freedom development platform for Kinetis K20 USB MCU
This design is a plug-in from FLIR's Tau2 LWIR core. Both the LVDS and CMOS channels are connected to the UART configuration channel through the SYZYGY connector.
A microphone is a transducer that converts sound into electronic signals. It can transmit human speech to electronic devices to distant places or amplify the sound signal through speakers. In recent years, the development of wireless technology has gradually matured and become an indispensable trend in daily life, such as WIFI, Bluetooth and 2.4GRF transmission, etc., which have brought many conveniences in life, and wireless microphones are also one of them, allowing microphone users such as teachers to attend class. It is more convenient to go out with a tour guide to introduce attractions, speakers and karaoke singing.
This is a reference design for a 65W USB-PD type C charger with a small form factor. Reference designs are designed to demonstrate performance by meeting various industry specifications and allowing for small form factor design requirements. Using Infineon digital flyback controller XDPS21081, 600V CoolMOS™ C7 superjunction MOSFET (IPL60R185C7), OptiMOS™ PD synchronous rectification MOSFET (BSC0802LS), 30V OptiMOS™ MOSFET (BSZ0905PNS) as a safety switch, small signal MOSFET (BSL606SN) and the EZ-PD™ CCG3PA USB Type-C controller.
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