MC4863PD – Dual 2.2W Audio Amplifier

Part Number: MC4863, MC4863PD

Function: Dual 2.2W Audio Amplifier Plus Stereo Headphone Function

Package: SOP16 package and TSSOP16-EP, TSSOP20 and TSSOP20-EP Type

Manufacturer: MegaPower Semiconductor

Images:

MC4863PD pdf datasheet

Description

The MC4863PD is a dual bridge-connected audio power amplifier which, when connected to a 5V supply, will deliver 2.2W to a 4Ω load(Note 1) or 2.5W to a 3Ω load(Note 2) with less than 1.0% THD+N. In addition, the headphone input pin allows the amplifiers to operate in single-ended mode to drive stereo headphones.

Boomer audio power amplifiers were designed specifically to provide high quality output power
from a surface mount package while requiring few external components,to simplify audio system
design, it combines dual bridge speaker amplifiers and stereo headphone amplifiers on one chip.

Features

1. Single-ended mode – THD+N 0.5%(max) at 75mW into 32Ω

2. Shutdown current 0.7μA(typ)

3. Stereo headphone amplifier mode

4. “Click and pop” suppression circuitry

5. Unity-gain stable

6. Thermal shutdown protection circuitry

3 page
MC4863PD pinout amplifier

Applications:

1. Multimedia monitors

2. Portable and desktop computers

3. Portable televisions

MC4863PD PDF Datasheet

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EL34 PDF PDF Datasheet – Audio Power Pentode ( Tube )

Part Number: EL34

Function: High Performance Audio Power Pentode

Package: 8 Pin Circle type

Manufacturer: Svetlana, philips

Images:

EL34 pdf pinout

Description

The EL34 is a type of vacuum tube, also known as a thermionic valve. It is a popular power pentode tube used in amplifiers and other audio equipment. The device is known for its warm and rich tone, making it a favorite among guitar amplifier enthusiasts.

The Device is a glass envelope power pentode having a plate dissipation rating of 25 Watts with convection cooling. It is intended for audio frequency power amplification service in either pentode, ultralinear or triode connection and single or push-pull/parallel applications. The Svetlana EL34 has an indirectly-heated oxide cathode, which may be DC operated for the absolute best hum/noise performance.

The Svetlana EL34 plate is made from a laminated material that improves heat transfer and has superior performance under overload conditions which are often seen with guitar amplifiers. Close manufacturing specification tolerances and improved processing provide enhanced reliability and superior sonic performance. The high sensitivity of a pair or quad of Svetlana EL34’s is an economical method to achieve high quality sound with a minimum of driving stage components.

The Svetlana EL34 is manufactured with the original Mullard design in the Svetlana factory in St. Petersburg, Russia, and is designed to be a direct replacement for any EL34/6CA7 or equivalent. The Svetlana EL34 gives electrical and audio performance very similar to that of the original Mullard EL34.

2 page
EL34 tube equivalent

Replacements:

There are several variants and similar tubes to the EL34, such as the 6CA7, KT77, and KT88.

EL34 PDF Datasheet

EL34 pdf

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