NTE7050

NTE7050 Integrated Circuit Phase Lock Loop (PLL) Stereo Decoder Description: The NTE7050 is a Phase Lock Loop (PLL) stereo decoder with cassette head amplifiers in a 16–Lead DIP type package designed especially for car radios. This device has SDS circuitry where fluctuating signal strength can cause demodulation noise and distortion. The stereo decoder is compensated for a typical IF filter with a roll–off frequency of 50kHz (2dB down at 38kHz). Features: D A Voltage–Controlled Oscillator D A Pilot Presence Detector and an Automatic Mono/Stereo Switch D A Matrix and Two Amplifiers for the Left and Right Output Signal D Two Output Buffers with 10dB Gain and Low Output Impedance D Mute Circuit D A Source Selector for Radio or Cassette D An Input Amplifier of which the Gain can be Adjusted by means of an External Input Resistor D A Pilot Cancelling Circuit for an Extra Suppression of the Pilot Signal of 15dB D An Signal Dependent Stereo (SDS) Circuit for a Smooth Change Over from Stereo to Mono at Weak Tuner Input Signals Absolute Maximum Ratings: Supply Voltage (Pin3 and Pin9), V3–5, V9–5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18V LED Driver (Peak Current), I3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75mA Total Power Dissipation (TA = +25°C), PTOT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.6W Operating Ambient Temperatu...