Part number: TDA2003

Functions: 10W Car Radio Audio Amplifier.

Pacakge: Pentawatt 5 Pin

Manufacturer: STMicroelectronics,  Unisonic Technologies

Image

Description

The Device is a monolithic audio power amplifier integrated circuit. The TDA2003 has improved performance with the same pin configuration as the TDA2002. The additional features of TDA2002, very low number of external components, ease of assembly, space and cost saving, are maintained.

The device provides a high output current capability (up to 3.5A) very low harmonic and cross-over
distortion. Completely safe operation is guaranteed due to protection against DC and AC short circuit between all pins and ground, thermal over-range, load dump voltage surge up to 40V and fortuitous open ground.

Pinout

Features

1. Very Low External Component Required.

2. High Current Output ( up to 3 A).

3. Low Harmonic and Crossover Distortion.

4. Built-in Over Temperature Protection.

5. Short Circuit  Protection Between all Pins.

Test Circuit

Other data sheets within the file : TDA2003H, TDA2003V

TDA2003 Datasheet PDF

TDA2003A Datasheet

The Audio Amplifier learn more.

Part Number: MIX2018, MIX2018A

Functions: 4.8W Single Channel Class-F Audio Power Amplifier

Package: ESOP8 Type

Manufacturer: WELLKING TECHNOLOGIES

Image:

Description:

A single-channel Class-F audio power amplifier is a type of amplifier that is designed to efficiently amplify audio signals with high power output using Class-F amplification topology. Class-F amplifiers are known for their high efficiency and are commonly used in applications where power efficiency is a priority, such as in radio frequency (RF) power amplifiers.

Class-F amplifiers are an extension of Class-D amplifiers, which use pulse-width modulation (PWM) to achieve high efficiency. However, Class-F amplifiers incorporate additional harmonic manipulation techniques to further improve efficiency.

In a Class-F amplifier, the output stage is designed to shape the current waveform and minimize power dissipation. This is achieved by utilizing tuned resonant circuits that allow the amplifier to operate near resonance, reducing the power losses that occur during transitions between on and off states.

MIX2018 is a high efficiency, filterless 4.8W mono class F audio amplifier. Ultra-low EMI is very suitable for portable equipment with FM function.

MIX2018’s single-ended input architecture and extremely high PSRR effectively improve MIX2018’s ability to suppress RF noise. The filter-free PWM modulation structure and built-in gain method reduce external components, PCB area and system cost, and simplify design.

Up to 90% efficiency, fast start-up time and small package size make MIX2018 the best choice for portable audio products.

MIX2018 has a shutdown function, which greatly prolongs the standby time of the system.
An overheat protection function enhances system reliability. The POP sound suppression function improves the hearing experience of the system and simplifies system debugging.

Pinouts:

1. SD I system shutdown control (high level shutdown, low level operation)
2. BYPASS I Reference voltage
3. MODE I/O Type D, Type F selection
4. -IN I Audio negative input terminal
5. OUTN O Audio negative output terminal
6. VDD power supply
7. GND ground
8. OUTP O Audio positive output terminal
9. GND Chip bottom heat sink ground

Characteristic:

1. Unique FM interference-free architecture
2. Class D output power: -4.8W (VDD=5.0V, RL=2Ω, THD+N=10%)
3. Class F output power: -4.8W (VDD=5.0V, RL=2Ω, THD+N=10%)
4. Low distortion and low noise
5. Power-on POP sound suppression function
6. Shutdown current is less than 1uA
7. Overheat protection function

Application

1. Loudspeaker
2. Portable speakers / card speakers
3. Card speakers / USB speakers

 

MIX2018 PDF Datasheet File