NTE1208 Integrated Circuit CMOS, Phase Comparator Description: The NTE1208 is an integrated circuit in a 9–Lead SIP type package consisting of a digital phase comparator and an amplifier. Three state output connected to low pass filter (using an internal amplifier) will produce DC voltage to control a VCO. Low state pulses appear on phase out as long as the loop is unlocked and these can be utilized as lock indicator. Absolute Maximum Ratings: (TA = +25°C unless otherwise speciied) Supply Voltage, VDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10V Input Voltage, VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3V to VDD+0.3V Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –30° to +75°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +125°C Electrical Characteristics: (TA = –35° to +75°C, VDD = 7.5V unless otherwise speciied) Parameter Symbol Test Conditions Min Typ Max Unit 4.5 – 8.0 V 7.3 – – V – – 0.2 V – – 200 µA Operating Supply Voltage VDD Output Voltage, “H” Level VOH Output Voltage, “L” Level VOL Quiescent Current IDD 3 State Leakage Current ITLH – – 500 nA ITLL – – –500 nA – 3.0 – dB Filter Amp Voltage Gain AV VIL = 1.6V, VIH = 6.6V, IOH = –50µA VIH = 7.5V, VIL = 0V R1–2 = 1MΩ, fIN = 1kHz, Rg = 600Ω Pin Connection Diagram (Front View) 9 GND 8 R 7 S 6 N.C. 5 VDD 4 Phase Output 3 PDOUT 2 AIN 1 AOUT .126 (3.2) .323 (8.2) Max .100 (2.54) .906 (23.0) Max 1 9 .020 (0.50) .800 (20.3) .099 (2.5) Min