0.5W to 3W BTL audio power amplifier IC

Overview:

The AN7510/7520 series is a 0.5W to 3W BTL audio power amplifier IC. Equipped with a standby function and mute or DC volume circuit, the series includes a lineup of single and dual output models. With simplified set design due to minimum external components, this IC has a wide variety of applications.

Features:

• Operating power sourcs voltage: 3.0V to 13.5V.
• Built-in standby function.
• Built-in mute or DC volume circuit.

Circuit Diagram:

 0.5W to 3W BTL audio power amplifier IC

Audio signal processing IC for 1.5 V headphone stereo

General Description:

The AN7500FHQ is a single chip IC optimum for a 1.5 V headphone stereo system including pre-amp., power amp. and Dolby B type noise reduction circuit. Current consumption in a Dolby circuit off mode has been drastically reduced and an operating supply voltage has also been lowered to 0.98 V. Much fewer external components  have been realized due to an integration of audio signal processing system into a single chip circuitry in a small outline package and space saving mounting of a set.

Circuit Diagram

Audio signal processing IC for 1.5 V headphone stereo

Dual 20 Watt audio amplifier

General Description:

The AN7190NK and the AN7190NZ are audio power ICs developed for the sound output of car audio (dual 20 W). It is incorporating various protective circuits to protect the IC from destruction by GND-open, short circuit to GND and power supply surge which are the important subject of power IC protection, so the IC will largely contribute to a high reliability design of equipment. Also, it is incorporating a perfect muting circuit which is free from shock noise, so that a shock noise design under the set transient condition can be made easily using together with its standby function. 

Circuit Diagram:

Dual 20 Watt audio amplifier

Dual BTL 20W Audio Power Amplifier

Description:
The AN7177 is a monolithic integrated circuit designed for  Dual BTL audio power amplifier suitable for Hi-Fi and car stereo. 
Features:

•  High output power (20W x 2) 
•  Incorporating stand-by circuits 
•  Low shock noise from power ON/OFF switching 
•  Fewer external components 
•  Incorporates protection circuits 
•  Highly stable operation

Circuit Diagram:

Dual BTL 20W Audio Power Amplifier 

Datasheet for AN7177: Download

NTE7059 Integrated Circuit Dual BTL 14W Audio Power Amplifier

General Description:

The NTE7059 is an integrated circuit in a 16−Lead Staggered SIP type package designed

for a 14W (13.2V, 4Ω) output power amplifier. Stereo operation is enabled due to incorporating two BTL amplifiers. High reliability is obtained due to incorporating protectors. ON/OFF is enabled even if power is supplied to the power supply pin by applying stand−by circuit.

Features:

• High Output Power: 14W x 2
•  Incorporates Protection Circuits:
• Temperature, Overvoltage, VOUT−GND Short, RL Short, VOUT−VCC Short
•  Low Shock Noise from Power ON/OFF Operation
•  Fewer External Components
•  High Stable Operation

Dual BTL 14W Audio Power Amplifier Circuits

Overview:

The AN7171NK and AN7176K are ICs for power amplification of 14W (13.2V, 4Ω) output. It can provide stereo operation since two BTL amplifiers are incorporated in achip. It incorporates various protective circuits, thus providing high reliability. The circuits can be turned on or offwith supply pins energized, because the stand-by circuit is built-in.

Circuit Diagram:

Dual BTL 14W Audio Power Amplifier Circuits

BTL 17 watt audio power amplifier

Overview:
The AN7163 is an integrated circuit designed for power amplifier of 17W output with low noise and low distortion, and it suits TV set with multi-sound. Stereo operation is enabled due to incorporating two amplifiers on one chip. 12-pin SIL package enabled compact and high-densely mounted set. 
Circuit diagram:

BTL 17 watt audio power amplifier

Datasheet for AN7163: