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| NTE1559 Integrated Circuit FM IF Amp, Demod Functions: D FM IF Amplifier D Quadrature Detector D Audio Amplifier D Muting Circuit D Signal-Meter Driver Features: D High Signal-to-Noise Ratio D High Sensitivity D Large Muting Attenuation D Stable Operation using Full-Balanced Differential D D D D D AFC Center-Meter Driver Muting Controller (Bandwidth & Level) Center-Meter Short Circuit for AM Band (Pin15) IF Amp Killer for AM Band (Pin15) D Triplex Amplifier D High Linearity of Signal Meter D Operational Input Level of Muting is Adjustable by Controlling External Resistance Absolute Maximum Ratings: Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V Power Dissipation, PT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 590mW Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -20 to +70C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 to +125C Electrical Characteristics: (TA = +25C, VCC = 13V, fc = 10.7MHz, fm = 400Hz, f = 75kHz dev. unless otherwise specified) Parameter Operating Current Limiting Sensitivity Recovered AF Voltage Total Harmonic Distortion Signal-to-Noise Ratio AM Rejection Muting Attenuation Symbol ICCmax Vin(lim) Vo(AF) THD S/N AMR Test Conditions Vin = 100dB, 2V supplied to Pin5, +150kHz detuned Input level lower by 3dB than (Vo(AF) under 100dB of input voltage) Vin = 100dB Vin = 100dB Vin = 100dB Vin = 100dB, fm = 1kHz, MOD = 30% Min - - 280 - 83 45 83 Typ Max Unit mA dB mV % dB dB dB 30.5 39.3 33 380 37 510 0.01 0.08 88 60 100 - - - Mute(ATT) (Output Voltage under 100dB if Vin and with Pin5 Open) = 0dB, 2V fed to Pin5 via 12k Electrical Characteristics (Cont'd): (TA = +25C, VCC = 13V, fc = 10.7MHz, fm = 400Hz, f = 75kHz dev. unless otherwise specified) Parameter Muting Bandwidth Muting Sensitivity Muting Sensitivity Control Range Meter Driven Voltage (1) Meter Driven Voltage (2) Meter Driven Voltage (3) Recovered AF Voltage Attenuation (for AM Band) Center-Meter Voltage (For AM Band) Symbol Test Conditions Min 60 36 75 - 0.9 4.5 60 Typ 100 43 - 0 1.6 5.5 81 +7 Max Unit 160 60 - - - - - +30 kHz dB dB V V V dB mV BW(Mute) The sum of plus and minus side fc's for V12 = 1.4V under 100dB if Vin Vin(Mute) Without muting level control, Pin16 Open, V12 = 1.4V Vin = 0dB Vin = 70dB Vin = 110dB Vin = 100dB, Pin15 Open, 13V supplied to Pin15 via 4.7k Vin(Mute) Max Input Level for Muting Level Control V13-0 V13-70 V13-110 VO(AM) VCM(AM) Vin = 100dB, +150kHz detuned, the voltage -30 difference of Pin7 and Pin10 with 13V supplied to Pin15 Pin Connection Diagram 1st IF Input 1 2nd IF Input 2 3rd IF Input 3 GND 4 Mute Control 5 Audio Amp Output 6 AFC Amp Output 7 Quadrature Tank 8 16 Level Control 15 Center Meter 14 GND 13 Signal Motor Drive 12 Mute Switch 11 VCC 10 Quadrature Tank 9 Quadrature Tank 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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