Dual TV sound demodulator circuits

GENERAL DESCRIPTION The circuits incorporate two FM demodulator systems to perform the demodulator functions required in a dual sound carrier TV system for demodulating the sound carriers. The difference between TDA2555 and TDA2557 is the number of stages of the limiting amplifier. • Eight

PROTECTED QUAD LOW-SIDE DRIVER WITH FAULT DETECTION & SLEEP MODE

FEATURES ■ 300 mA Output Current per Channel ■ Independent Over-Current Protection &Thermal Limiting for Each Driver ■ Output Voltage to 60 V ■ Output SOA Protection ■ Fault-Detection Circuitry for Open or Shorted Load ■ Low Quiescent Current Sleep Mode ■ Integral Output Flyback/Clamp Diode

PROTECTED QUAD LOW-SIDE DRIVER WITH FAULT DETECTION and SLEEP MODE

FEATURES ■ 300 mA Output Current per Channel ■ Independent Over-Current Protection &Thermal Limiting for Each Driver ■ Output Voltage to 60 V ■ Output SOA Protection ■ Fault-Detection Circuitry for Open or Shorted Load ■ Low Quiescent Current Sleep Mode ■ Integral Output Flyback/Clamp Diode

Highpass Filter

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Digital Storage Oscilloscopes

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Bandwidth up to 300 MHz

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