NTE712 Datasheet, PDF (1/3 Pages) NTE Electronics – Integrated Circuit TV/FM Sound IF Detector

NTE712
Integrated Circuit
TV/FM Sound IF Detector
Description:
The NTE712 is a versitile device in a 14–Lead DIP type package incorporating IF limiting, detection,
electronic attenuation, audio amplifier, and audio driver capabilities.
Features:
D Differential Peak Detector Requiring a Single Tuned Circuit
D Electronic Attenuator Replaces Conventional AC Volume Control: Range > 60dB
D Excellent AM Rejection @ 4.5 and 5.5MHz
D High Stability
D Low Harmonic Distortion
D Audio Drive Capability: 6.0mA_P–P
D Minimum Undesirable Output Signal @ Maximum Attenuation
Absolute Maximum Ratings: (T_A = +25°C unless otherwise specified)
Input Signal Voltage (Pin1 and Pin2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±3V
Power Supply Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50mA
Power Dissipation, P_D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 625mW
Derate Above 25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5mW/°C
Operating Ambient Temperature Range, T_opr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20° to +75°C
Storage Temperature Range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65° to +150°C
Electrical Characteristics: (V+ = 24V, T_A = +25C unless otherwise specified)
Parameter
Pin
Test Conditions
Min Typ Max Unit
Regulated Voltage
5
10.3 11.0 12.2 V
DC Supply Current
Quiescent Output Voltage
5 V+ = 9V, R_S = 0
12
10 16 24 mA
5.1 – – V
Dynamic Characteristics: (V+ = 24V, T_A = +25°C unless otherwise specified)
Parameter
Test Conditions
Min Typ Max Unit
IF Amplifier and Detector (f_o = 4.5MHz, ∆f = ±25kHz)
AM Rejection
Input Limiting Threshold Voltage
Recovered Audio Output Voltage
Output Distortion
V_in = 10mV_rms, Note 1
V_in = 10mV_rms
V_in = 10mV_rms
40 51 –
dB
– 200 400 µV_rms
0.5 0.7 – V_rms
– 0.4 2.0 %
Note 1. 100% FM, 30% AM Modulation.