NTE743
NTE743 is Integrated Circuit Phase Lock Loop (PLL) Stereo Decoder manufactured by NTE Electronics.
NTE743 Integrated Circuit Phase Lock Loop (PLL) Stereo Decoder
Description: The NTE743 requires only a single, non critical resistive tuning adjustment. This device derives left and right audio channels from the standard posite stereo decoder can also be used in a number of subscription TV decoder schemes or in various proposed TV stereo systems. Using phase- lock techniques, the subcarrier (38 KHz for FM stereo) is regenerated in phase with and at exactly twice the frequency of the transmitted pilot signal. Switching between monaural and stereo operation is acplished automatically by the presence of the pilot signal. Low- impedance emitter- follower outputs and an internal voltage...
