TDA7498 Datasheet -100-watt Dual BTL Audio Amplifier

Part Number: TDA7498TR

Function: 100-watt + 100-watt dual BTL class-D audio amplifier

Package: PowerSSO36 Type

Manufacturer: STMicroelectronics

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TDA7498 datasheet pdf

Description

The TDA7498 is a dual BTL class-D audio amplifier with single power supply designed for home systems and active speaker applications. It comes in a 36-pin PowerSSO package with exposed pad up (EPU) to facilitate mounting a separate heatsink.

 

Pinout

tda7498-datasheet-pinout

 

 

Features

1. 100-W + 100-W output power at THD = 10% with RL = 6 Ω and VCC = 36 V

2. 80-W + 80-W output power at THD = 10% with RL = 8 Ω and VCC = 34 V

3. Wide-range single-supply operation (14 – 39 V)

4. High efficiency (η = 90%)

5. Four selectable, fixed gain settings of nominally 25.6 dB, 31.6 dB, 35.1 dB and 37.6 dB

6. Differential inputs minimize common-mode noise

7. Standby and mute features

8. Short-circuit protection

9. Thermal overload protection

10. Externally synchronizable

 

Official Homepage: http://www.st.com/en/audio-ics/tda7498.html

 

TDA7498 Datasheet

LTK5128 Datasheet – Audio Power Amplifier Chip

Part Number: LTK5128

Function: 5W,  AB/ D Audio Power Amplifier

Package  : ESOP-8 type

Manufacturer: LTKCHIP TECHNOLOGY

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ltk5128-audio-power-amplifier-chip

Description

The LTK5128 is a 5W, mono Class AB / Class D operating mode cut Function, ultra-low EMI, no need to filter the audio power amplifier chip.

The chip is designed to operate with a wide input voltage range and has protection features such as over-voltage protection, over-current protection, and thermal shutdown protection. It is commonly used in electronic devices such as personal computers, communication equipment, and consumer electronics.

The LTK5128 through a MODE pin can easily switch to AB class Mode, completely eliminate EMI interference. Operating voltage 2.5V-5.5V, in Class D Amplifier mode can provide more than 90% efficiency, the new filter-free Wave structure can save the traditional Class D amplifier output low-pass filter, Thus saving the system cost and PCB space, is ideal for portable applications select. LTK5128 using a unique DRC (Dynamic range control) Technology, reducing the high-power output, due to the loss of the waveform cut to bring the top True, compared to similar products, dynamic response is even better.

 

Pinout

ltk5128-datasheet-pinout

 

Features

1. Filterless Class D / Class AB amplifiers with low quiescent current sum Low EMI

2. FM mode without interference

3. Excellent blasting sound suppression circuit

4. Low noise, low distortion

5. DRC dynamic distortion correction circuit

6.  10% THD + N, VDD = 5V, 4Ω load, provided Up to 3W of output power

7. 10% THD + N, VDD = 5V, 2Ω load, provided Up to 5W of output power

8. Short-circuit current protection

9. Undervoltage protection

10. Shutdown current <0.5uA

 

Application Circuit

ltk5128-application-circuit

Applications

1. Bluetooth speaker

2. Trolley speakers, USB speakers

3. Video player, loudspeaker, etc.

LTK5128 Datasheet PDF

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