msp430 audio prototype
No description available.
Microcontroller interfacing with RS 232
Standard serial interfacing of a microcontroller (TTL) with a PC or any RS232C standard device requires a TTL to RS232 level converter. A MAX232 is used for this purpose. It provides a 2-channel RS232C port and requires external 10µF capacitors.
The...
DAC schematic diagram of the USB interface formed by PCM2702
The peripheral circuit is straightforward, consisting of a DAC schematic circuit diagram for a USB interface that utilizes the PCM2702. The output of the circuit can be directly connected to a power amplifier and is capable of driving headphones with...
Digital Ramp ADC
Also known as the stairstep-ramp or simply counter A/D converter, this type of converter is relatively straightforward to comprehend but unfortunately has several limitations.
The stairstep-ramp or counter A/D converter operates on the principle of comparing an analog input voltage to...
IR On/Off Switch Using Microcontroller
The ability to turn electrical devices ON or OFF using a remote control is a well-established concept, with numerous devices effectively performing this function.
To implement a remote control system for switching electrical devices, a typical schematic would include several key...
Password Based Door Locking
Security is a prime concern in our day-to-day life. Everyone wants to be as much secure as possible. An access control for doors forms a vital link in a security chain. The microcontroller based Door locker is an access control...
Audio Power Amplifier
Measure the voltage across the 1k resistor connected to the input stage and Vcc. The DC voltage should be approximately 2 volts, or 2 mA of current flowing through this resistor. For instance, if Vcc is at 24 volts, the...
Voltage Level Detector Circuit
The design originated from the interest in discovering a new technique for analog to digital conversion. The two types of ADC (Analog to Digital Converter) that influenced the development of this circuit are the Flash Type ADC and the Successive...
Low Resource Microcontroller 3 Phase BLDC Motor Speed Controller
This article discusses a minimal resource microcontroller implementation for a three-phase Brushless DC (BLDC) motor, focusing on a closed-loop speed motor controller application based on a Microchip PIC12 device. It demonstrates how minimization techniques can reduce the number of I/O...
Circuit Audio Stereo power amplifier LM4755 11W with Mute
The internal mute circuit and pre-set gain resistors provide a cost-effective design solution. Output power specifications at both 20V and 24V supplies, along with a low external component count, offer significant value to consumer electronic manufacturers for stereo TV and...