NTE1237 Datasheet, PDF (1/2 Pages) NTE Electronics – Integrated Circuit AM Radio without Audio Stage

NTE1237
Integrated Circuit
AM Radio without Audio Stage
Features:
D Small External Part Count
D Tuning Meter Circuit
D Wide AGC Range
Absolute Maximum Ratings: (T_A = +25°C unless otherwise specified)
Supply Voltage, V_CC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18V
Power Dissipation, P_T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500mW
Operating Temperature Range, T_opr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20° to +70°C
Storage Temperature Range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +125°C
Electrical Characteristics: (V_CC = 12V, f = 1MHz unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Maximum Sensitivity
Signal–to–Noise Ratio
MS f_M = 400Hz, MOD = 30%, Output=50mV
S/N f_M = 400Hz, Input = 40dB/m
MOD = 30%
Input = 74dB/m
37.5 40.0 42.5 dB
8 12 – dB
42 45 – dB
Total Harmonic Distortion THD f_M = 400Hz MOD = 30%, Input = 74dB/m – 1.0 2.0 %
MOD = 80%, Input = 74dB/m – 1.5 3.0 %
MOD = 30%, Input =120dB/m – 2.5 10 %
Detector Voltage
Tuning Meter Circuit
V_O(DET) f_M = 400Hz, MOD = 30%, Input = 74dB/m
TM Input = 74dB/m
140 170 230 mW
50 – 100 %
Quiescent Current
I_Q
– 13 21 mA