PB50

Voltage - Input Offset:	750mV
Base Part Number:	PB50
Supplier Device Package:	TO-3-8
Package / Case:	TO-3-8
Mounting Type:	Through Hole
Operating Temperature:	-25°C ~ 85°C
Voltage - Supply, Single/Dual (±):	60 V ~ 200 V, ±30 V ~ 100 V
Current - Output / Channel:	2A
Current - Supply:	17mA
Series:	Apex Precision Power®
-3db Bandwidth:	1MHz
Slew Rate:	100 V/µs
Output Type:	--
Number of Circuits:	1
Amplifier Type:	Power
Part Status:	Active
Packaging:	Tube

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PB50 application field and working principleThe PB50 is a dual channel headphone amplifier that offers a wide range of applications in various fields. It is designed to power high-impedance headphones, as well as low-impedance headphones from low-impedance devices. Its features include a low noise floor, high output power, and wide dynamic range.PB50 belongs to the category of linear amplifiers, which are instruments that amplify an input signal without distortion or noise. They are commonly used in audio and video circuitry, including in headphones and speakers. Linear amplifiers can also be used in instrumentation and communication systems, where they are used to transmit a signal accurately and reliably.The working principle of the PB50 is based on the principle of Class A amplification. In this type of amplification, a linear amplifier operates from DC offset-free input signals. This means that AC signals can be amplified without adding additional DC offset to the input signal. The output of the PB50 is always symmetrical about ground, meaning that the output waveforms are predefined and easily reproducible.Class A amplification is an efficient way to boost audio or video signals without adding distortion or other artifacts. Additionally, the PB50 also offers power amplification, which is the step necessary to drive headphones or speakers from weak signals. With its wide dynamic range, the PB50 can produce accurate and reliable high-output signals.The PB50’s OP amp is the key component of its circuit. This operational amplifier provides the platform for the power amplification and low-noise sound. Additionally, its buffer amp provides additional gain to ensure that no signal is lost in the process. The combination of these two components ensures that the PB50 is able to accurately and reliably reproduce audio signals.Despite its efficient power output, the PB50 is lightweight and portable. This makes it an ideal device for field recording, home studios, and other applications that require a reliable headphone amplifier. Its dual headphone jacks allow users to have multiple headphones plugged in at the same time.In summary, the PB50 is a dual channel headphone amplifier that offers a wide range of applications in various fields. It is designed to power high-impedance headphones, as well as low-impedance headphones from low-impedance devices, and features a low noise floor, high output power, and wide dynamic range. Its working principle is based on Class A amplification, and utilizes an OP amp and buffer amplifier to provide accurate and reliable sound. Additionally, its lightweight and portable design make it an ideal device for field recording and home studios.

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