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Audio ICs
Audio level sensor
BA335
The BA335 is a sensor amplifier which consists of three blocks : a small signal audio amplifier, a hysteresis comparator, and a driver. Housed in a 9-pin SIP package, it is optimal for tape recorder end detection and tape mute detection. FApplications Tape end detection Tape mute detection FFeatures 1) Built-in comparator with stable hysteresis under power supply voltage and temperature fluctuations. 2) Built-in transistor and diode capable of driving an inductive load at 600mA. FAbsolute maximum ratings (Ta = 25_C)
3) Time delays can be created as needed with an external CR circuit.
FInternal circuit schematic
829
Audio ICs
FElectrical characteristics (unless otherwise noted, Ta = 25_C and VCC = 9.