NTE1441 Integrated Circuit FM IF Amplifier, Detector Function: D IF Amplification, Limiter D Quadrature Detector D AF Preamplifier D Muting at Weak Input D Muting at the Detuning D D D D D Signal Meter Drive Output AFC Tuning Meter Drive Output Delay AGC Output Inverting Circuit for Muting Drive Voltage IF Amplifier Stop Circuit Features: D High Limiting Sensitivity: 18µV Typ. D Low Distortion: 0.05% Typ Determined by the Linearity of Phase Characteristics in Phase Shifting Circuit D High Demodulation Output: 330mVrms Typ D High S/N Ratio: 78.5dB Typ D Muting at Detuning with Little Shock Noise D Single Meter Drive Output Proportional with the Input Signal Level dB D Detuning Muting Band having Good Symmetrics D Tuning Meter Driving Output having Wide Swing Width D Delay AGC Drive Output for Front End D Constant Voltage Circuit is Built–In: Operating Voltage Range = 9V to 14V D Muting Characteristics Between Adjacent Stations are Distinguished Absolute Maximum Ratings: (TA = +25°C unless otherwise specified) Maximum Supply Voltage (Pin11), VCCmax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16V Maximum Input Voltage (Pin1–2), VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±1VP–P Maximum Supply Current (Pin11), ICC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40mA Maximum Flow–In Current Pin15, I15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1mA Pin16, I16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1mA Maximum Flow–Out Current Pin10, I10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2mA Pin12, I12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2mA Pin13, I13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2mA Pin15, I15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2mA Allowable Power Dissipation, PDmax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 650mW Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20° to +70°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +125°C Recommended Operating Condition: (TA = +25°C unless otherwise specified) Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12V Electrical Characteristics: (TA = +25°C, VCC = 12V, f = 10.7MHz unless otherwise specified) Parameter Symbol Test Conditions Min Typ Max Unit – 22 30 mA – 26.5 33.0 mA Quiescent Current ICCO Current Dissipation ICC VIN = 100dBµ Demodulated Output VO VIN = 100dBµ, 400Hz – 100% MOD 240 330 460 mVrms Signal–to–Noise Ratio S/N VIN = 100dBµ, 400Hz – 100% MOD 72.0 78.5 – dB Input Limiting Voltage VIN(lim) VO 3dB down, 400Hz – 100% MOD – 25 31 dBµ THD VIN = 100dBµ, 400Hz – 100% MOD – 0.05 0.3 % Total Harmonic Distortion Muting Sensitivity VIN(mute) V12 = 1.4V 23 29 35 dBµ Muting Attenuation Mute(att) V5 = 2V, VIN = 100dBµ, 400Hz – 100% MOD 60 65 – dB Muting Bandwidth BW(mute) VIN = 100dBµ, V12 = 1.4V 140 220 370 kHz VIN = 100dBµ, FM: 400Hz – 100% MOD, AM: 1kHz – 30% MOD 45 60 – dB Quiescent 4.0 4.9 6.0 V VIN = 100dBµ 0 0 0.3 V Quiescent 0 0 0.1 V VIN = 70dBµ 1.9 3.0 4.2 V VIN = 100dBµ 4.5 5.5 – V Quiescent 4.2 5.0 5.5 V VIN = 100dBµ 0 0 0.5 V Quiescent, V8–10 ≤ 20mV 10 35 60 µA V16(mute) VIN = 100dBµ, V12 = 1.4V 0.7 0.84 1.0 V AM Rejection Ratio Muting Driving Output Signal Meter Driving Output AGC Output IF OFF Current Voltage of Muting Operation Offset Voltage Pin Voltage AMR V12 V13 V15 I15(off) V6–10B Quiescent, Pin6 – Pin10 –0.5 0 +0.5 V V7–10B Quiescent, Pin7 – Pin10, R7–10 = 5.1k –0.25 0 +0.25 V – 2.6 – V V2 – 2.6 – V V3 – 2.6 – V V6 – 5.6 – V V7 – 5.6 – V V8 – 5.4 – V V10 – 5.6 – V V12 – 4.9 – V V13 – 0 – V V15 – 5.0 – V V1 Quiescent Pin Connection Diagram Front End 1 16 Mute Level Adjust Front End 2 15 AGC Front End 3 14 GND GND 4 13 Signal Meter Mute Switch 5 12 Mute Switch AF Output 6 11 VCC AFC/Vref 7 10 Detector Trans Detector Trans 8 16 9 Detector Trans 9 .260 (6.6) Max 1 8 .785 (19.9) Max .300 (7.62) .200 (5.08) Max .245 (6.22) Min .100 (2.54) .700 (17.7)