NTE7067 Integrated Circuit Audio IF Detector for High Quality Multi–Channel TV & VCR Description: The NTE7067 is a 4.5MHz to 6.5MHz intercarrier audio IF detector for high–quality multi–channel TV and VCR sound systems. It is designed for use is quasi–parallel configurations to eliminate audio buzz and minimize other side–effects present in conventional detection circuits. This device includes a 3–stage IF amplifier, IF AGC circuit, and transistor intercarrier audio detection circuit. The NTE7067 operates from a single 8 to 10V power supply and is available in a 9–Lead SIP type package. Features: D Compact Package D Excellent Audio S/N Characteristics D Coil–less Circuit Absolute Maximum Ratings: (TA = +25°C unless otherwise specified) Maximum Supply Voltage VCCmax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12V V3max (VCC = 12V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12V Allowable Power Dissipation (TA ≤ +65°C), Pdmax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 540mW Maximum Output Current, I6max . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3mA Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –10° to +65°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +125°C Recommended Operating Characteristics: (TA = +25°C unless otherwise specified) Recommended Supply Voltage, V7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9V Operating Voltage Range, V7op . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 to 10V Electrical Characteristics: (TA = +25°C, VCC = 9V unless otherwise specified) Parameter Symbol Test Conditions Min Typ Max Unit Supply Current I7 V3 (IF AGC) = 4V 17 22 32 mA Input Sensitivity VI IF input level for 0.35VP–P detector output with 40% modulation 34 42 50 dBµ AGC Range GR (Maximum input for VO = 0.35VP–P) – Vi 60 70 – dB Vimax IF input level for detector output increase of 1dB 100 200 – dBµ Maximum Input Level Detector Output Amplitude V06 4.5MHz output level, P/S = 13dB 90 130 Audio S/N S/N fp = 58.75MHz, 87.5% staircase modulation, fs = 54.25MHz, (S: FM ±25kHz, fm = 400Hz N: Non–modulation) P/S = 13dB 50 56 180 mVrms – Pin Connection Diagram (Front View) 9 Detector Filter 8 N.C. 7 VCC 6 Detector Output 5 GND 4 TP (Open) 3 IF AGC Filter 2 IF Input 1 IF Input .862 (21.89) .118 (3.0) .053 (1.35) .059 (1.5) .177 (4.5) 1 9 .110 (2.8) .100 (2.54) .031 (0.78) dB