MIX2018 – Audio Power Amplifier ( PDF )

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:

MIX2018 amplifier

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:

MIX2018 pinout

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

MIX2018 datasheet pdf


 

TDA2002 Datasheet – 8W, Audio Power Amplifier

TDA2002 Datasheet PDF learn more. This is a kind of amplifier.

Part number : TDA2002

Odering Parnumber : TDA2002H, TDA2002V

Functions : 8 WATT AUDIO POWER AMPLIFIERS.

Package information : Pentawatt H, V Type

Manufacturer : STMicroelectronics, Fairchild Semiconductor

Image :

TDA2002 transistor amplifier

The texts in the PDF file :

The TDA2002 is a class B audio power amplifier in pentawatt package designed for driving low impedance loads. The device provides a high output current capability, very low harmonic and cross-over distortion.

[ … ]

Pin arrangement :

TDA2002 pinout datasheet

Features

1. Very low number of exteral components
2. High reliability
3. Fixibility in use

Absolute maximum ratings

1. Peak supply voltage (50ms) : Vs = 40 V
2. DC supply voltage : Vs = 28 V
3. Operation supply voltage : 18 V
4. Power dissipation : Ptot = 15 W

TDA2002 PDF File

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