Features
• Minimum number of external parts required.
• Excellent S/N
• Local OSC with ALC
• Local OSC buffer
• Tuning indicator pin (common with narrow-band stop signal and muting drive output)
• Variable stop sensitivity (variable separately for FM, AM)
• Less tweet interference
• Signal meter pin
• IF count output

Functions
    FM : IF amplifier, quadrature detector, AF preamplifier, signal meter, IF count outputlifier, tuning indicator drive output (common with stop signal, muting drive output)
    AM : RF amplifier, MIX, OSC (with ALC), IF amplifier, detector, AGC, signal meter, tuning indicator drive output (common with stop signal), IF count output, local OSC buffer.