NTE1149

NTE1149 Integrated Circuit FM Tuning System Absolute Maximum Ratings: (TA = +25°C unless otherwise specified) Supply Voltage (Pin 14), VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V Lamp Voltage, VLAMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20V Lamp Current, VLAMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40mA Power Dissipation, PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500mW Operating Temperature Range (VCC = 12V), Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to +60°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −55 to +125°C Electrical Characteristics: (TA = +25°C, VCC = 12V unless otherwise specified) Parameter Lamp Voltage Symbol VLAMP Test Conditions Voltage Gain from Terminal 1 to 13 is 35dB Lamp Turn ON − Vi = 10.7Mhz Lamp Turn OFF − Vi = 10.7Mhz (Note 1) Tuning Meter Min. Operating Input Voltage Tuning Meter Operating Range Center Meter Output Current Muting On Output Voltage Muting Off Output Voltage Internal Power Dissipation PD At Lamp ON At Lamp OFF Meter Internal Input Resistance 20kΩ, Discriminator Vi = ±0.5V Voltage Gain from Terminal 1 to 13 is 35dB Min − 6 − − 40 1.8 − − − Typ 10 10 7 30 60 23 0.2 230 150 Max 16 − − − 75 − 0.6 − − Unit mV mV mV dB µA V V mW mW Pin Connection Diagram (Front View) From 10.7Hz Bias Control Detector Input Bypass Signal Meter Lamp GND 1 2 3 4 5 6 7 14 13 12 11 10 9 8 VCC RF/VCC Centering Meter Out Centering Meter Out Discriminator Input Discriminator Input Audio Muting 14 8 1 7 .827 (21.0) Max .300 (7.62) .197 (5.0) Max .100 (2.45) .600 (15.24) .099 (2.5) Min