TDA8595J/N2,112 vs TDA8568Q/N3C,112
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| Category | Linear - Amplifiers - Audio | Linear - Amplifiers - Audio |
| Manufacturer | NXP USA Inc. | NXP USA Inc. |
| Description | IC AMP CLASS AB QUAD 64W DBS27P | IC AMP CLASS B QUAD 35W DBS23P |
| Package | Tube | Tube |
| Series | - | - |
| Type | Class AB | Class B |
| Features | Depop, I²C, Mute, Short-Circuit and Thermal Protection, Standby | Depop, Mute, Short-Circuit and Thermal Protection, Standby |
| Voltage - Supply | 8V ~ 18V | 6V ~ 18V |
| Operating Temperature | -40°C ~ 105°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Through Hole | Through Hole |
| Package / Case | 27-SIP, Formed Leads | 23-SIP Formed Leads |
| Supplier Device Package | DBS27P | DBS23P |
| Output Type | 4-Channel (Quad) | 4-Channel (Quad) |
| Max Output Power x Channels @ Load | 64W x 4 @ 2Ohm | 35W x 4 @ 4Ohm |
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1. What types of audio amplifiers are available?
Common types of audio amplifiers include:
Class A amplifiers: have the highest sound quality, but are less efficient.
Class B amplifiers: More efficient, but may produce crossover distortion.
Class AB amplifiers: between Class A and Class B with good balance.
Class D amplifier: highest efficiency, suitable for portable devices, but slightly lower sound quality. -
2. What is a power amplifier and how is it different from an audio amplifier?
A power amplifier is a type of audio amplifier designed to drive high-power loads such as speakers. It is capable of amplifying audio signals to a sufficient power output to drive speakers to produce greater volume.
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3. What is a Class D audio amplifier and what are its advantages?
Class D audio amplifiers work through Pulse Width Modulation (PWM) technology and have extremely high efficiency (typically up to 90% or higher), making them suitable for use in portable audio equipment or high-efficiency sound systems. It generates less heat because it reduces energy consumption.
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4. Does the audio amplifier need to match the impedance of the speakers?
Yes, the output impedance of the audio amplifier should match the impedance of the speaker. Typically speakers have an impedance of 4Ω, 8Ω or 16Ω. Matching the impedance ensures that the amplifier delivers maximum power and the best sound quality from the speaker.
