The ROHM BA5208AF is a high-power dual power amplifier designed for bridge-tied load (BTL) operation. It delivers up to 400 mW into an 8Ω load in BTL connection and requires neither large bootstrap capacitors nor output coupling capacitors when used in this configuration.
The device features low distortion, low noise, and a built-in muting circuit to minimize power-on/off pop noise. It is available in a compact 16-pin MF package and is suitable for applications such as compact cassette recorders, microcassette recorders, and radio cassette recorders.
| Supply voltage Vcco | 3V to 400mW BTL Power Amplifier (implied range) |
|---|---|
| Load impedance (BTL) | 8Ω minimum |
| Operating temperature range | -25~75°C |
| Storage temperature range | -55~125°C |
| Closed loop voltage gain (BTL) | 36.5 to 41 dB |
| Total harmonic distortion (BTL) | 0.5 to 3.0 % |
No, it requires neither large bootstrap capacitors nor output coupling capacitors when used in BTL connection.
The amplifier can drive a load impedance as low as 40 ohms in OTL connection.