NTE1230 Datasheet, PDF (1/2 Pages) NTE Electronics – Integrated Circuit FM Multiplex Stereo Demodulator

NTE1230
Integrated Circuit
FM Multiplex Stereo Demodulator
Description:
The NTE1230 is a monolithic integrated circuit in a 16–Lead DIP type package designed for use as
an FM stereo multiplex demodulator. This device includes 2 channel amplifiers that can make the
0dB line output.
Absolute Maximum Ratings: (T_A = +25°C unless otherwise specified)
Maximum Supply Voltage, V_CCmax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20V
Lamp Driver Current, I_L . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40mA
Preamp Output Stage Current, I₆, I₈ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5mA
Operating Temperature Range, T_opr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20° to +80°C
Storage Temperature Range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +125°C
Recommended Operating Conditions: (T_A = +25°C unless otherwise specified)
Supply Voltage, V_CC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9V
Electrical Characteristics: (T_A = +25°C, V_CC = 9V, f = 1kHz, Input = 100mV, L + R = 90%,
Pilot = 10% unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Quiescent Current
I_CC
Lamp “ON” Level
V_L
Hysteresis of Lamp “ON – OFF”
– 15 20 mA
50 – 100 mV
– – 4.0 dB
Channel Separation
Sep
Left Channel
35 – – dB
Right Channel
35 – – dB
Total Harmonic Distortion
Left Channel
THD
– – 1.5 %
Right Channel
– – 1.5 %
Output Voltage
V_O
Left Channel
200 – 400 mV
Right Channel
200 – 400 mV
Channel Balance
Ba
– – 2.0 dB
SCA Rejection
L + R = 80%, Pilot = 1–%, SCA = 10% – 55 – dB