BH7884EFV is a low voltage, low noise, high output speaker and headphone amplifier drive from ROHM. It is manufactured using Bi-CMOS process. This IC supports: headphone amplifier gain adjustment, active/suspend switching, speaker amplifier stereo/monaural switching, and amplifier mute switching. All functions are controllable from a microcontroller. Built-in digital noise reduction circuits eliminate digital noise and BEEP sounds.
The BH7884EFV is a low‑voltage, low‑noise Class‑AB speaker and headphone amplifier IC fabricated with a Bi‑CMOS process. It offers stereo speaker output, headphone amplification, bass‑boost, mute, standby, and digital noise‑reduction functions, all controllable via a microcontroller.
The document lists absolute maximum ratings, operating conditions, electrical characteristics, pin configurations, block diagrams, and example application circuits, as well as ordering information and legal notices.
| Power dissipation | 1100 mW |
|---|---|
| Storage temperature range | -55 °C ~ +125 °C |
| Operating temperature range | -10 °C ~ +70 °C |
| Typical suspend‑mode current | 0.2 µA |
| Speaker output power | 1 W + 1 W stereo |
| Total harmonic distortion (THD) | 10 % |
| Circuit current (ACTIVE) | 9 mA typ / 18 mA max |
| Circuit current (SUSPEND) | 0.2 µA typ / 10 µA max |
The maximum power dissipation is specified as 1100 mW.
It is rated for operation between –10 °C and +70 °C.