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.

* This product is a STANDARD grade product and not recommend for on-vehicle devices.
Part number
Unit Quantity
Minimum Package Quantity
Packing Type
BH7881EFV-E2 Active HTSSOP-B24 2000 2000 Taping Yes
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
  • ・Built-in low saturation type regulator (Digital power supply driver, voltage and current variable, short circuit detection)
    ・Bass boost mode, gain switching functions
    ・Speaker MUTE function (Headphone mode)
    ・Built-in line amplifier output (gain adjustment, LPF setting) active / suspend function (TTL input control pin)
    ・Hysteretic thermal shutdown function (Set for approximately 150℃ / 90℃)
    ・IC protection function (SP pin VCC / GND short circuit detection)
    ・Speaker protection function (Output voltage amplitude control)
Pin Configuration:
Pin Configration
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Thermal Resistance