TDA8920CTH/N1,118

Series:	--
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Type:	Class D
Output Type:	1-Channel (Mono) or 2-Channel (Stereo)
Max Output Power x Channels @ Load:	220W x 1 @ 8 Ohm; 125W x 2 @ 4 Ohm
Voltage - Supply:	±12.5 V ~ 32.5 V
Features:	Depop, Differential Inputs, Mute, Short-Circuit and Thermal Protection, Standby
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Supplier Device Package:	24-HSOP
Package / Case:	24-BSOP (0.433", 11.00mm Width) Exposed Pad
Base Part Number:	TDA8920

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IntroductionThe TDA8920CTH/N1,118 is a linear amplifier chip that can be found in audio applications. It belongs to the type of audio amplifiers that are known as Class-AB bridged amplifiers, meaning that it operates using two channels that are bridged together. These include the input, output, bias control and power control of the chip.Input stagesThe TDA8920CTH/N1,118 has two input stages. The first is a differential amplifier which consists of two transistors connected in series. This gives the chip two separate inputs which allows for stereo operation, as well as for the bridging of the two inputs. The second input is an amplifier which is used to provide additional gain when needed.Output stagesThe TDA8920CTH/N1,118 also has two output stages. The first is a class-AB output stage, which provides the chip with its characteristic high-fidelity sound quality. The second output stage is a class-D output stage, which is more efficient and produces more power.Bias controlThe TDA8920CTH/N1,118 also has an internal bias control, which allows it to adjust its operating bias depending on the signal it is amplifying. This makes it possible to optimize the output for higher power or better fidelity.Power controlThe TDA8920CTH/N1,118 also has two power control inputs. This is used to regulate the level of power that the amplifier is generating. By adjusting the level of power, the amplifier can be made to produce more power or can be kept at a lower level in order to conserve power.Application fieldsThe TDA8920CTH/N1,118 is commonly used in audio applications. It is used in audio amplifiers, receivers, preamps, and other audio-related equipment. It is also used to power large public address systems and in audio systems for large venues.ConclusionThe TDA8920CTH/N1,118 is a linear amplifier chip used in audio applications. It belongs to the type of audio amplifiers known as Class-AB bridged amplifiers, meaning that it operates using two channels that are bridged together. It has two input stages, two output stages, bias control, and power control. Its application fields include audio amplifiers, receivers, preamps, and other audio-related equipment, as well as powering large public address systems and audio systems for large venues.

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