MAX98357 I2S Amplifier - 2.5W Class-D audio amplifier module
ID: 1182935
zł28.92
Tax included
zł23.51 tax excl.
Class-D mono audio amplifier module based on the MAX98357 chip. It can work with a 4 to 8 ohm speaker of up to 2.5 W and communicates via an I2S interface. DFRobot DFR0954
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14 days for return
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Description
Class-D mono audio amplifier module based on the MAX98357 chip. It can work with a 4 to 8 ohm speaker of up to 2.5 watts and communicates via I2S. It allows users to set different modes (off, left channel, right channel and mixed) by changing the resistance on the SD pin (the default is mixed mode). It can work with popular development boards including Raspberry Pi, ESP32 and STM32, which are equipped with I2S audio interface. Thanks to its small size, it will find application in building a small audio player. Full documentation and sample programs are available on the product page.
Features
- Class-D mono amplifier
- Power: 1.8 watts for 8 Ω, 2.5 watts for 4 Ω
- Speaker: 4 to 8 Ω
- I2S interface
- Sampling frequency: 8 to 96 kHz
- Adjustable gain 3 dB, 6 dB, 9 dB, 12 dB, 15 dB
- Support for PCM encoding
- THD: 0.02% (f = 1kHz, POUT = 1W, TA = +25NC, ZSPK = 4I + 33FH, TQFN), 0.013% (f = 1kHz, POUT = 0.5W, TA = +25NC, ZSPK = 8I + 68FH)
- Dynamic range: 105 dB
- Output noise: 25 FVRMS
- Efficiency: 92% (ZSPK = 8I + 68FH, THD+N = 10%, f = 1kHz, gain = 12dB)
- DAC Gain Error: 1%
- Frequency response: ±0.2 dB
- Switching frequency: 330 kHz
- Spread spectrum bandwidth: ±12.5 kHz
- PH2.0 connector for speaker
- SMT edge pads
- Power supply: 3.3 to 5 V
- Dimensions: 18 x 18 mm
Kit contains
- MAX98357 I2S Amplifier module
- 2 x 6-pin straight goldpin connector
1182935
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Class-D mono audio amplifier module based on the MAX98357 chip. It can work with a 4 to 8 ohm speaker of up to 2.5 W and communicates via an I2S interface. DFRobot DFR0954