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2W + 2W Stereo Speaker / Headphone Amplifiers - BH7881EFV

The BH7881EFV is a low voltage drive, low noise, high output speaker / headphone amplifier in which a BiCMOS process is used. An on-chip speaker amplifier circuit that is capable of 2W+2W output can be used as a headphone amplifier by switching the operating mode, which makes it possible to configure an audio system using few external devices. Moreover, since a low saturation regulator in which output voltage and output current can be programmed is built in, clear tone quality is obtained even when directly connected to a digital power supply. A peripheral analog circuit also can be regulator driven. Furthermore, the BH7881EFV provides speaker output and VREG output short circuit detection functions, a thermal shutdown function with hysteresis, and a speaker protection function, so it also can be used confidently from a safety standpoint.

BH7881EFV Data Sheet

Specifications Vcc(Min.)[V] 3.3 Vcc(Max.)[V] 5.5 Iq[mA] 18.0 Maximum Output Gain[dB] 17.0 Additional Feature Bass Boost Speaker Amp Outputs 2.0 Speaker Amp THD+N[%] 0.04 Speaker Amp SNR[dB] -94.0 Speaker Amp Input Type Single Speaker Amp Type Class AB Speaker Amp Output Power(Max.)[W] 2 Number of Headphone Outputs 2 Headphone Output Type DC Bias output Headphone THD+N[%] 0.02 Headphone SNR[dB] -96.0 Headphone PSRR[dB] 50.0 Headphone Input Type Single Headphone Output Power(Max.)[mW] 30 Operating Temperature (Min.)[°C] -10 Operating Temperature (Max.)[°C] 70

Technical Documents Application Note Package Information Package Information Part Explanation Pin Configuration

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