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TA2012 Folha de dados(PDF) 10 Page - Toshiba Semiconductor |
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TA2012 Folha de dados(HTML) 10 Page - Toshiba Semiconductor |
10 / 21 page TA8132AN / AF , TA2012N / F 2002-10-30 10 8. FM / AM switch and forced monaural switch FM / AM switch over and stere / forced monaural switch over are done by internal PNP transistors ON / OFF which are connected to pin(16) and pin (17) respectively. The threshold voltages of these PNP transistors are Vth = VCC, and for switching, we recommend to use mechanical switch. (Direct short to VCC line.) In the case of the electrical switch over by transistor, set up VCE (saturation voltage between collector and emitter) 50mV or less, otherwise there are some cases that it does not become the AM mode and force monaural mode. When these external switches are ON, the currents which flow into pin(16) and pin(17) are 100µA and 20µA respectively. (Typical value at VCC = 3V) Maximum Ratings (Ta = 25°C) Characteristic Symbol Rating Unit Supply voltage VCC 8 V LED current ILED 10 mA LED voltage VLED 8 V TA8132AN 1200 Power dissipation TA8132AF PD (Note) 400 mW Operating Temperature Topr -25~75 °C Storage temperature Tstg -55~150 °C (Note): Derated above 25°C in the proportion of 9.6mW / °C for TA8132AN, TA2012N and of 3.2mW / °C for TA8132AF, TA2012F. |
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