NTE1578 Datasheet, PDF (1/2 Pages) NTE Electronics – Integrated Circuit FM Mixer/IF Amp

NTE1578
Integrated Circuit
FM Mixer/IF Amp
Description:
The NTE1578 is an FM front–end integrated circuit in a 16–Lead DIP type package designed for use
in car radio and home stereo applications. This device has a built–in AGC driver circuit which im-
proves interference characteristics. It thereby offers advantages such as improved interference char-
acteristics without sacrificing usable sensitivity and the conventional DX–LOCAL change–over
switch.
Features:
D Double–Balanced Type MIX (Improved Spurious Characteristic)
D Keyed AGC/Keyed Classical AGC (Improved Intermodulation, Cross Modulation Characteristic)
D Differential IF Amplification (Improved Limiting Characteristic)
Absolute Maximum Ratings: (T_A = +25°C unless otherwise specified)
Maximum Supply Voltage (Pin12, Pin15), V_CC1max . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.5V
Maximum Supply Voltage (Pin5, Pin6), V_CC2max . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16V
Allowable Power Dissipation (T_A ≤ +50°C, Note 1), P_Dmax . . . . . . . . . . . . . . . . . . . . . . . . . . . . 600mW
Operating Temperature Range, T_opg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20° to +70°C
Storage Temperature Range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +125°C
Note 1. P_Dmax = 460mW at T_A = +70°C
Recommended Operation Condition: (T_A = +25°C unless otherwise specified)
Recommended Supply Voltage (Pin12, Pin15), V_CC1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8V
Recommended Supply Voltage (Pin5, Pin6), V_CC2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13V
Electrical Characteristics: (T_A = +25°C, V_CC1 = 8V, V_CC2 = 13V unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Dissipation Current
Local OSC Input Offset
MIX Input Offset
MIX Output Offset
High Level AGC Output
Low Level AGC Output
I_CC1 Pin 12, 15
I_CC2 Pin 5, 6
∆V_INOSC
∆V_INMIX
∆I_{OUT MIX}
V_{AGC H} V_i = 0dBu, V_CL = 4V
V_{AGC L} V_i = 100dB, V_CL = 4V
17 25 36 mA
5
8 11 mA
–20 0 20 mV
–20 0 20 mV
–600 0 600 µA
7.6 7.9 – V
– 0.5 1 V