Product Specification:
- Specifications Model: OEP3W_2.54MM amplifier
- Working mode: Class D (PWM modulation)
- Chip: OEP3W
- Number of channels: Mono
- Power supply range: DC 2.5 ~ 5V
- Amplifier gain: 20dB (change resistance parameter adjustable)
- Input impedance: 46k Ω
- Output impedance: 8 ~ 4 Ω
- Quiescent current: 3mA (5v power supply)
- Shutdown current: <0.1mA (5v power supply)
- Recommended sound: 3 ~ 10w
- Signal to noise ratio: 95bB
- Harmonic Distortion: <0.1%
- Frequency response range: 30Hz ~ 20kHz
- Operating temperature: -40 ~ 85
- Cooling volume: no heat dissipation
- Protection function: no protection function
- Note: Gain is suitable for computer use
- Output power: 3w THD + N = 10% (4Ω, 5v)
- 1.8w THD + N = 10% (8Ω, 5v)
- 2.5w THD + N = 1% (4Ω, 5v)
- 1.4w THD + N = 1% (8Ω, 5v)
Pin Definition:
- CS: chip select (floating or high, boot; low, shutdown)
- IN-: audio signal input negative
- IN +: audio signal input positive
- GND: Power ground
- VCC: Positive power supply
- SP +: audio signal output positive, then horn +
- SP-: audio signal output positive, then speaker –
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