Standard Headphone Amplifiers - BH3548F

BH3548F is headphone amplifier suitable for portable products. BH3548F has a fixed gain of 6 dB, so external resistors for gain setting are not needed. Package of BH3548F is pin-to-pin compatible (SOP-8), enable to replace BH3541F / 44F / 47F each other easily. BH3548F also has mute functions that make it easy to prevent pop noise when power supply turns on / off. Moreover, thermal shutdown function is built-in. BH3548F can drive 8 / 16 / 32O. So, BH3548F is suitable for 8O receiver.

* This product is a STANDARD grade product and not recommend for on-vehicle devices.
Part Number
Unit Quantity
Minimum Package Quantity
Packing Type
Constitution Materials List
BH3548F-E2 Active SOP8 2500 2500 Taping inquiry Yes
Vcc(Min.)[V] 4.0
Vcc(Max.)[V] 5.5
Iq[mA] 6.5
Ext. Gain No
Maximum Output Gain[dB] 6.0
Headphone Output Type DC Bias output
Headphone THD+N[%] 0.02
Headphone SNR[dB] -94.0
Headphone Input Type Single
Headphone Output Power(Max.)[mW] 62
Operating Temperature (Min.)[°C] -25
Operating Temperature (Max.)[°C] 75
  • ・Built-in mute function for preventing pop noise when power supply turns ON or OFF
    ・Built-in thermal shutdown circuit (150℃) to prevent IC destruction due to short circuit
    ・Compact SOP8 package
Pin Configuration:
Pin Configration
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Application Note

Thermal Resistance