TDA8922CJ/N1,112

Series:	--
Packaging:	Tube
Part Status:	Active
Type:	Class D
Output Type:	1-Channel (Mono) or 2-Channel (Stereo)
Max Output Power x Channels @ Load:	155W x 1 @ 8 Ohm; 75W x 2 @ 6 Ohm
Voltage - Supply:	±12.5 V ~ 32.5 V
Features:	Depop, Differential Inputs, Mute, Short-Circuit and Thermal Protection, Standby
Mounting Type:	Through Hole
Operating Temperature:	-40°C ~ 85°C (TA)
Supplier Device Package:	DBS23P
Package / Case:	23-SIP Formed Leads
Base Part Number:	TDA8922

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TDA8922CJ/N1,112 Application Field and Working Principle

The TDA8922CJ/N1,112 is a monolithic integrated circuit manufactured by NXP Semiconductors suitable for use in the field of linear amplifiers and audio.

Overview

This integrated circuit features a monolithic BTL (bridge-tied load) power amplifier with MOSFET output stages, an integrated electronic volume and tone control and a leadfree surface mount package suitable for automotive applications. It has a wide power supply range from 4V to 36V and can deliver a continuous output power up to 800 mW with a 4 ohm load or 400 mW with an 8 ohm load, thanks to its high efficiency.

Configuration

The TDA8922CJ/N1,112 includes several integrated built-in protection features such as overcurrent, thermal shutdown, UVLO (under-voltage lockout) and short-circuit protection that make it a reliable and robust device, as well as an adjustable turn-on/off delay and mute function.

Application Field and Usage

The TDA8922CJ/N1,112 is commonly used in car audio systems, portable audio players, DVD players, sound systems and PCs, since it is versatile and can produce high-quality sound with a wide range of operating voltage. The MOSFET output stages allow a high-power output and the protection features guarantee a reliable and robust performance, even in harsh conditions.

Working Principle

The TDA8922CJ/N1,112 can be used as a bridge-tied load power amplifier, as it is configured with two integrated MOSFET output stages that are connected to form a bridge. The operating principle is based on the switching of the MOSFET transistors in order to feed the loudspeaker with varied electrical power. The TDA8922CJ/N1,112 is configured with a built-in electronic volume and tone control that can be used to adjust the output signal. The integrated circuit also has several protection features that ensure reliable operation even in harsh conditions. The overcurrent protection shuts down the output stages when the current tops a certain threshold, while the thermal shutdown prevents overheating. The UVLO feature ensures that the device is not turned on in case the supply voltage is too low. Finally, a short-circuit protection shuts down the output stages when the load is short-circuited.

Conclusion

The TDA8922CJ/N1,112 is a monolithic integrated circuit suitable for use as a linear amplifier and audio device. It features a bridge-tied load power amplifier with MOSFET output stages, an integrated electronic volume and tone control and a leadfree surface mount package suitable for automotive applications. This integrated circuit can be used for producing high-quality sound with a wide range of operating voltage in car audio systems, portable audio players, DVD players, sound systems and PCs. Furthermore, the integrated circuit is configured with several protection features that ensure reliable operation even in harsh conditions.

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