Audio ICs Double cassette tape recorder dual preamplifier BA3416BL The BA3416BL is a dual preamplifier (for playback only) that has been designed for use with dual-cassette decks. An internal switch is used to switch the left and right channel inputs between the A and B tape mechanisms. The playback heads can be directly coupled to the preamplifiers without coupling capacitors, and an internal switch is provided to switch the equalizer characteristics for metal and chrome tape. Applications Dual-deck stereo radio cassette players Features 1) Internal tape A / tape B switch for use with dual-cassette decks. 2) Internal switch is provided to switch the equalizer characteristics for metal tape playback. Block diagram and external component connections 240 3) Input bias circuit does not require coupling capacitors. 4) Wide operating power supply voltage range (VCC = 3.5V to 12V). Audio ICs BA3416BL FAbsolute maximum ratings (Ta = 25_C) FRecommended operating conditions (Ta = 25_C) FElectrical characteristics (unless otherwise noted, Ta = 25_C, VCC = 8V, f = 1kHz, OUTPUT = pins 13 and 14) FTape selection 241 Audio ICs External dimensions (Units: mm) 242 BA3416BL