TPA2018D1YZFT vs TPA2000D1PWR
| Part Number |
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| Category | Linear - Amplifiers - Audio | Linear - Amplifiers - Audio |
| Manufacturer | Texas Instruments | Texas Instruments |
| Description | IC AMP CLASS D MONO 3W 9DSBGA | IC AMP CLASS D MONO 2W 16TSSOP |
| Package | Cut Tape (CT) | -Reel® |
| Series | SmartGain™ | - |
| Type | Class D | Class D |
| Features | Differential Inputs, I²C, Short-Circuit and Thermal Protection, Shutdown, Volume Control | Depop, Differential Inputs, Short-Circuit Protection, Shutdown |
| Voltage - Supply | 2.5V ~ 5.5V | 2.7V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 9-UFBGA, DSBGA | 16-TSSOP (0.173\", 4.40mm Width) |
| Supplier Device Package | 9-DSBGA | 16-TSSOP |
| Output Type | 1-Channel (Mono) | 1-Channel (Mono) |
| Max Output Power x Channels @ Load | 3W x 1 @ 4Ohm | 2W x 1 @ 4Ohm |
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1. How to choose a suitable audio amplifier?
When choosing an audio amplifier, factors such as output power, total harmonic distortion (THD), signal-to-noise ratio (SNR), efficiency, impedance matching (speaker impedance), and power consumption should be taken into consideration to ensure that it is well-matched with the speakers and audio source equipment.
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2. 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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3. What is the signal-to-noise ratio (SNR) of an audio amplifier?
Signal-to-noise ratio (SNR) is a measure of the ratio of the audio signal to the background noise, with higher values indicating less noise in the audio signal. A high SNR usually means clearer sound output.
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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.
