BA3420AL

The BA3420AL is dual recording/ playback preamplifier for radio cassette players and it has an internal switch for switching between playback head, mic, and radio input modes, and also includes a bias oscillator and regulated voltage source for radio use. All control is possible with one external switch, allowing designers to reduce the number of external components and the size of their set designs.

The features of BA3420AL can be summarized as (1)internal three-mode input/output switch for playback head, mic and radio modes; (2)built-in bias oscillator and regulated voltage source for radio use; (3)control of the internal switch and regulated voltage source is possible with one external switch; (4)low distortion; (5)low noise.

The absolute maximum ratings of BA3420AL are (1)applied voltage VCC: 18V; (2)power Pd: 4(Reduced by 4.0 mW for each increase in Ta of 1°C over 25°C); (3)operating temperature Topr: -25~+75°C; (4)storage temperature Tstg: -55~+125°C.