Preamps with Built-in ALC - BA3308F | ROHM Semiconductor - ROHM Co., Ltd. - global
Preamps with Built-in ALC - BA3308F
The BA3308F/FV is a dual preamplifier for recording and playback with ALC (auto level control), developed for stereo radio,cassette recorders, tape recorders, and other pre amplifiers audio applications.
ALC circuit has a build in rectification circuit with wide adjustable dynamic range, high gain, low distortion amplifiers withdirect coupling and mute circuit, used to cut off pop noise during power on.
Available in SOP14, or SSOP-B14 Packages.
Open loop Gain[dB]
Operating Temperature (Min.)[°C]
Operating Temperature (Max.)[°C]
Features:・ Built-in ALC rectification diode
・ Wide operating power supply voltage range (VCC=4.5~14 V)
・ Low current consumption (IQ=3.5mA)
・ High gain (GVO=80dB)
・ Low distortion (THD=0.1%)
・ Low noise (VNIN=1 μVrms)
・ Input coupling capacitor not needed
8) Good ALC channel balance
9) Built-in power supply mute circuit
10) Dynamic range of ALC can be changed by attaching input resistance.