TDA1557Q/N2,112

Series:	--
Packaging:	Tube
Part Status:	Obsolete
Type:	Class B
Output Type:	2-Channel (Stereo)
Max Output Power x Channels @ Load:	22W x 2 @ 4 Ohm
Voltage - Supply:	6 V ~ 18 V
Features:	Depop, Mute, Short-Circuit and Thermal Protection, Standby
Mounting Type:	Through Hole
Operating Temperature:	--
Supplier Device Package:	13-PDBS
Package / Case:	13-SIP Formed Leads
Base Part Number:	TDA1557Q

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Introduction

The TDA1557Q/N2,112 is a high performance audio linear amplifier. It provides maximum output current up to 2 x 1.4 A and allows the connection of several equalization filters, allowing a wide variety of high quality sound effects. The amplifier allows the connection of several external independent audio systems, from basic signal conditioning to full range audio systems.

Application Field and Working Principle

The TDA1557Q/N2,112 is used in a variety of applications, such as automotive audio systems, home theatre systems, portable audio systems, and computer audio systems. This amplifier is especially suitable for audio applications that require a wide dynamic range and very low distortion.The architecture of the amplifier is based on a basic class-D architecture, with the output stage being a high-efficiency class-D output stage. The amplifier contains an input stage, a main amplifier stage, an output driver stage, and a power supply stage. The input stage amplifies the input signal and drives the main amplifier stage. The main amplifier stage amplifies the signal and drives the output driver stage. The output driver stage drives the output stage.The main amplifier stage is made up of two discrete amplifiers, one of which is a variable-gain amplifier. This variable amplifier allows the amplifier\'s gain to be adjusted to match the desired output level. The variable-gain amplifier also allows the amplifier to maintain full power output up to the output stage power rails.The output stage is made up of two discrete amplifiers, one of which is a PWM amplifier. The PWM amplifier controls the drive voltage to the output transistors. This PWM amplifier allows the amplifier to provide high efficiency and low distortion.The power supply stage provides the power supply to the amplifier. The power supply is designed to provide optimal performance and good regulation. The power supply stage also includes over-voltage protection and protection against thermal runaway.

Conclusion

The TDA1557Q/N2,112 is a high performance audio linear amplifier suitable for a wide range of audio applications. Its unique architecture provides a high-efficiency, low-distortion design with adjustable gain and adjustable power output. The power supply stage is designed to provide optimal performance and protection against thermal runaway. The amplifier is ideal for any application requiring a consistent high-quality sound.

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