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| Datasheet File OCR Text: |
| NTE853 Integrated Circuit Low Power, Narrow Band, FM IF System Description: The NTE853 is a low power narrow band FM IF system which includes: Oscillator, Mixer, Limiting Amplifier, Quadrature Discriminator, Active Filter, Squelch, Scan Control and Mute Switch. The NTE853 is designed for use in FM dual conversion communications equipment. Features: D Low Drain Current (3mA Typ @ VCC = 6V) D Excellent Sensitivity: Input Limiting Voltage (-3.0dB) = 5.0V (Typ) D Low Number of External Parts Required Absolute Maximum Ratings: (TA = +25C, unless otherwise specified) Power Supply Voltage (Pin4), VCC(max) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12V Operating Supply Voltage Range (Pin4), VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4V to 8V Detector Input Voltage (Pin8), . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Vp-p Input Voltage (VCC 6V, Pin16), V16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1VRMS Mute Function (Pin14), V14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to 5Vpk Operating Junction Temperature, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +150C Operating Ambient Temperature Range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -30 to +70C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65 to +150C Electrical Characteristics: (VCC = 6V, fO = 10.7MHz, f = 3kHz, fmod = 1kHz, TA = +25C unless otherwise specified) Parameter Drain Current, Squelch OFF Drain Current, Squelch ON Input Limiting Voltage Detector Output Voltage Detector Output Impedance Recovered Audio Output Voltage Pin 4 4 16 9 - 9 Vin = 10mV -3dB Limiting Test Conditions Min - - - - - 200 Typ 2 3 5 3 400 350 Max - 5 10 - - - Unit mA mA V V mVrms Electrical Characteristics (Cont'd): (VCC = 6V, fO = 10.7MHz, f = 3kHz, fmod = 1kHz, TA = +25C unless otherwise specified) Parameter Filter Gain Filter Output Voltage Trigger Hysteresis Mute Function, LOW Mute Function, HIGH Scan Function, LOW Scan Function, HIGH Mixer Conversion Gain Mixer Input Resistance Mixer Input Capacitance Pin - 11 - 14 14 13 13 3 16 16 Pin Connection Diagram Test Conditions Vin = 10mV, 10kHz Min 40 1.8 - - 1 Typ 46 2.0 100 15 10 0 - 20 3.3 2.2 Max - 2.5 - 50 - 0.5 - - - - Unit dB V mV M V V dB k pF Mute OFF, V12 = 2V Mute ON, V12 = GND - 5.0 - - - Crystal OSC 1 Crystal OSC 2 Mixer Output 3 VCC 4 Limiter Input 5 Decoupling 6 Limiter Output 7 Quad Input 8 16 RF Input 15 GND 14 Audio Mute 13 Scan Control 12 Squelch Input 11 Filter Output 10 Filter Input 9 Demodulator Output 16 9 .260 (6.6) Max 1 8 .785 (19.9) Max .200 (5.08) Max .245 (6.22) Min .100 (2.54) .700 (17.7) .300 (7.62) |
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