NTE1624 Datasheet, PDF (1/4 Pages) NTE Electronics – Integrated Circuit AM/FM Radio Circuit w/Power Amp

NTE1624
Integrated Circuit
AM/FM Radio Circuit ^w/Power Amp
Features:
D Suitable for Use in AM/FM Portable Radios or Main–fed AM/FM Clock Radios.
D Incorporates AM RF Amp, AM Local Oscillator, AM Mixer, AM/FM IF Amp, AM/FM Detector,
AM AGC Circuit, FM AFC Circuit and B Class–Audio Power Amplifier.
D Using the NTE1624, Plus the Discrete Input Stage (for FM: RF Amp and Converter), It is Pos-
sible to Construct a Complete AM/FM Radios Receivers.
D Wide Operating Voltage Range: 3V to Approx 13V, Depending on the Internal Regulator Toler-
ance.
D As the Internal Shunt Voltage Regulator Circuit is Connected to the Supply Voltage Terminal, it
Permits a Constant Current Mode (Approximately 42mA) of Operation which is Desirable for
Line–Operated Equipments.
D AM to FM Switching is Accomplished by Switching Only DC Circuitry.
Absolute Maximum Ratings: (T_A = +25°C unless otherwise specified)
Supply Voltage, V_CC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11V
Supply Current, I_CC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44mA
Power Dissipation (T_A ≤ +65°C), P_D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 600mW
Derate Above 25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10mW/°C
Operating Temperature Range, T_opr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –18° to +65°C
Storage Temperature Range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +125°C
Thermal Resistance, Junction–to–Ambient, R_thJA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100°C/W
Electrical Characteristics: (T_A = +25°C, f_(AM)= 1MHz, Mod=30%, f_(FM)=10.7MHz ∆F=22.5kHz,
f_M=1KHz, V_IN=SG Open Voltage –6dB unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Quiescent Current
I_CCQ
SW → FM, V_CC = 3V
SW → FM, V_CC = 9V
7 12 17 mA
10 17 23 mA
Terminal Voltage (Pin16)
V_16(FM) SW1 → FM, I_CC = 42mA, No Signal
2.0 2.4 3.1 V
Limiting Voltage
V_IN(lim) SW → FM, V_CC = 5.5V, –3dB, V₁₆ = 2.4V, –
57
– dBµV
VR = Min
Internal Regulated Voltage
V_CC SW1 → AM, I_CC = 42mA
12.5 13.2 14.0 V
Terminal Voltage (Pin16)
V_16(AM) SW1 → AM, V_CC = 9V, No Signal
1.4 – 1.9 V