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TDA7296A Datasheet(PDF) 9 Page - STMicroelectronics |
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TDA7296A Datasheet(HTML) 9 Page - STMicroelectronics |
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9 / 13 page  In addition to the overload protection described above, the device features a thermal shutdown circuit which initially puts the device into a muting state (@ Tj = 145 oC) and then into stand-by (@ Tj = 150 oC). Full protection against electrostatic discharges on every pin is included. 3) Other Features The device is provided with both stand-by and mute functions, independently driven by two CMOS logic compatible input pins. The circuits dedicated to the switching on and off of the amplifier have been carefully optimized to avoid any kind of uncontrolled audible transient at the output. The sequence that we recommend during the ON/OFF transients is shown by Figure 16. The application of figure 17 shows the possibility of using only one command for both st-by and mute functions. On both the pins, the maximum applicable range corresponds to the operating supply voltage. 1N4148 10K 30K 20K 10 µF 10 µF MUTE STBY D93AU014 MUTE/ ST-BY Figure 17: Single Signal ST-BY/MUTE Control Circuit PLAY OFF ST-BY MUTE MUTE ST-BY OFF D93AU013 5V 5V +Vs (V) +35 -35 VMUTE PIN #10 (V) VST-BY PIN #9 (V) -Vs VIN (mV) IP (mA) VOUT (V) Figure 16: Turn ON/OFF Suggested Sequence TDA7296A 9/13 |
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