Features
• Internal reference voltage source
• Adjustment free oscillator with ceramic resonator 456 kHz
• Pilot dependent mono/stereo switching with hysteresis
• Stereo indicator output
• Analogue control of mono/stereo change over (stereo noise control, SNC)
• Pilot canceller (19 kHz)
• Adjacent channel noise suppression (114 kHz)
• MUTE facility
• Analogue control of deemphasis (high cut control, HCC).
• Stereo inputs for additional signal source at output amplifiers
• Interference noise detector with integrated high-pass filter
• (IF level signal or MPX input)
• MPX input low-pass filter
• Noise blanking at MPX demodulator outputs
• Input and output level adjustable (resistor values)

Application
   The TDA 4340X is an integrated circuit providing the stereo decoder function and noise blanking for FM car radio applications.