NTE1461 Datasheet, PDF (1/3 Pages) NTE Electronics – Integrated Circuit Phase Lock Loop (PLL) FM Stereo Demod

NTE1461
Integrated Circuit
Phase Lock Loop (PLL) FM Stereo Demod
Description:
The NTE1461 is a multiplex integrated circuit in a 16−Lead SIP type package designed for use in FM
car stereo applications. Due to its low distortion factor, this device can be used as a multiplex stereo
demodulator appropriate for car component stereo units.
Functions:
D Stereo Noise Control (SNC Pin):
Through controlling the quality of sound from stereo mode to monaural mode with the voltage ap-
plied to the control pin, the FM stereo noise in the weak electic field is reduced by this function.
D High−Cut Control Function (HCC Pin):
The FM noise in weak electric field is reduced through the attenuation of high frequency thereof.
Such attenuation can be changed smoothly from “Normal” to “High−Cut” by controlling the voltage
applied to the control pin. The volume of “High−Cut” can be selected by using a capacitor
installed at the outside of he unit.
D Stereo/Monaural Automatic Conversion:
This conversion operates in priority to the stereo noise control. Preference on the pilot input.
D Stoppage of VCO Oscillation:
When a voltage higher than 6V is applied on the HCC pin, the oscillation of VCO can be dis-
continued. An erroneous operation of stereo lamp does not happen even at this stage.
D With spearation control terminal
Features:
D Low Distortion Factor: 0.05% Typ, 300mV Input Mono
D The Ripple of Power Source can Effectively be Rejected
D Wide Supply Voltage Range: V_CC = 6.5V to 14V
Absolute Maximum Ratings: (T_A = +25°C unless otherwise specified)
Maximum Supply Voltage, V_CCmax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16V
Lamp Driving Current, I_L . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40mA
Allowable Power Dissipation (T_A ≤ +45°C), P_Dmax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 520mW
Operating Temperature Range, T_opr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −20° to +70°C
Storage Temperature Range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −40° to +125°C
Recommended Operating Conditions: (T_A = +25°C unless otherwise specified)
Recommended Supply Voltage, V_CC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.5 to 14V
Input Signal Voltage, V_i . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 to 300mV