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NTE736 Integrated Circuit FM IF Amp
Description: The NTE736 is a high performance monolithic FM Gain Block using the planar epitaxial process. The FM gain block consist of a three stage direct coupled amplifier with 330 input and output terminations and the 7pF shunting capacitance required for a 10.7MHz FM IF strip utilizing commercially available ceramic filters. Included on the chip is a 7.8V active regulator providing up to 10mA of current to an external load such as an FM tuner. The NTE736 features full temperature compensation for the IF amplifier and the 7.8V regulator. Excellent power supply rejection eliminates the need for an external regulated supply. An output from the second stage of the IF amplifier provides a means of external gain control without affecting the input or output terminations. The device is packaged in a 8-lead mini DIP. Features: D 50dB Voltage Gain at 10.7MHz D 330 Input and Output Terminations D Optimized Gain Vs. Temperature Characteristics D Temperature Compensated 7.8V Active Regulator Providing up to 10mA of Current D Short Circuit Protection for all External Connections Absolute Maximum Ratings: (Note 1) Supply Voltage, V+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18V Power Dissipation, PD (Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 430mW Input Voltage (Pins 1 and 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3V Regulator Output Current, IREG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10mA Regulator Short Circuit Duration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Indefinite Operating Ambient Temperature Range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40 to +85C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 to +125C Lead Temperature (Soldering, 10 seconds.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +260C Note 1. Rating applies for ambient temperatures to 70C. Above 70C derate linearly at 6.3mW/C
Electrical Characteristics: (TA = +25C, V+ = 24V unless otherwise specified)
Parameter DC Characteristics Supply Voltage Operating Range Supply Current Power Dissipation Terminal Voltage Pin 1,2 Pin 3 Pin 5 Pin 6 Pin 7 AC Characteristics IF Amplifier (fo = 10.7MHz) -3dB Limiting Threshold Output Voltage Swing Voltage Gain Voltage Gain Change Input Impedance Parallel Input Resistance Parallel Input Capacitance Output Impedance Parallel Output Resistance Parallel Output Capacitance Output Noise Voltage AC Characteristics Regulator Section Line Regulation (V6) Load Regulation (V6) Temperature Coefficent (V6) IL = 5mA, V+ = 10V to 6V IL = 0 to 5mA IL = 5mA, -40C TA +85C - - - 3.0 -10 -0.15 30 - - mV mV mV/C Pin 5 to Ground VIN = 100mV, RL = VOUT = 100mV -40C TA +25C +25C TA +85C Pin 1 to Pin 3 - 1.1 40 - - 230 5.0 230 5.0 - 900 1.4 50 6.0 1.0 330 9.0 330 9.0 5.0 - - 56 - - 440 14 440 14 - V Vp-p dB dB dB pF pF mVRMS RL = RL = IL = 5mA IL = 5mA 10 11 - - - - - 7.2 - - 16 190 210 1.4 2.6 2.0 7.8 2.0 16 19 230 255 - - - 8.3 - V mA mW mW V V V V V Test Conditions Min Typ Max Unit
Pin Connection Diagram
IF Input IF Input Decouple IF Supply Decouple GND
1 2 3 4
8 7 6 5
(+) VCC Low IF Output Regulator Output IF Output
8
5
.256 (6.52) Max
1
4
.393 (10.0) Max
.300 (7.62)
.150 (3.81)
.100 (2.54)
.070 (1.77) Min
.300 (7.62)

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