50 W+50 W dual-channel BTL class D audio amplifier demonstration board based on TDA7492
Galvanically isolated, dual-channel, 16-bit, simultaneous sampling, daisy-chain data acquisition system
1 W/860 - 960 MHz Evaluation Board based on PD84001
PD85004-Based 4 W/860 - 960 MHz Evaluation Board
The MAXREFDES174# is an IO-Link®-compliant, distance sensor reference design that uses the Maxim MAX22513 IO-Link device transceiver and supports the IQ2 Development IO-Link stack.
Microphone coupon board based on the MP23DB02MM digital MEMS microphone
The USB Type-C Shield expansion board for Kinetis Power Delivery SDK provides a Type-C connector for any Kinetis development platform.
The MAXREFDES1160 is a 5V supplied, 2.75kVRMS, full-duplex and 500kbps isolated RS-485 module using the MAX14853. This reference design demonstrates how to build an isolated RS-485 module with a low-cost transformer to provide isolated power. A transformer from HanRun, the HR600755, is used in this design. The power supply on the reference design is derived from a single 5V source. Connect the design board to a USB port or connect an external supply from VDDA to GNDA to provide 5V power supply on the logic side (A). The integrated push-pull transformer driver and external transformer (TX1) generate an isolated supply for powering the isolated side (B) of the board.
Universal 8-bit general-purpose IO daughter board for Fm+ development board
6 W/380 - 512 MHz evaluation board based on PD84008L-E
TI reference design TIDA-00947 demonstrates a 10.5mmx14.5mm, 92% efficient low electromagnetic interference (EMI) DC/DC module using the TPS54202, replacing low dropout regulators (LDOs) in most appliance applications. High efficiency eliminates the need for a heat sink, resulting in a smaller, lower cost solution. Higher current capacity enables the addition of more functionality (WiFi, sensors, etc.). High efficiency and low current consumption help achieve stringent energy efficiency ratings.
MEMS microphone evaluation board based on STA321MPL and MP34DB01 (microphone processor + digital uPhone MEMS)
The dI2C demonstration board OM13523 is used to demonstrate that a differential I2C bus operates better than a standard I2C bus in a noisy and ground excursion environment.
PD84001-Based 1 W/135 - 175 MHz Evaluation Board
Might not be an actual working transmitter, but it does produce a few mW of RF power at 4 MHz using only two LMC555s.
Principle of Operation (see attached simplified schematic):
At lower operating voltages, the flip-flop (TR) input of the LMC555 can be used as an inverting comparator input to control the output of the device. This requires the Threshold (TH) input to be active (high). This circuit applies a DC bias at the switching threshold of TR and superimposes a small AC feedback signal to create an oscillator. An inverted version of the same signal is applied to the second LMC555 to produce two complementary open collector outputs (the device's discharge output). The output is then connected as a standard push-pull RF amplifier. The TH input is used as the enable input to key the transmitter.
The MAXREFDES1158 is a 5V supplied, 2.75kVRMS isolated, 500kbps, RS-485 module using the MAX14946. This reference design demonstrates how to build an isolated RS-485 module with a low-cost transformer to provide isolated power.
The basic functions of USB-C are supported, such as high-speed communication and charging functions. Then this design solves the problem of painless switching between one host and multiple devices, or one device and multiple hosts.
Class G capacitorless headphone amplifier based on TS4621E
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