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Features:

? Programmable Divider – Divided by 3 to 255

? 10–Bit Divider

? Phase Detector

? Reference Oscillation Circuit

? On–Chip Filter Amplifier

? Code Converter

? Only two or three crystals required for CB radio AM frequency selection

? Unlocked signals are detected at instant stop “IS” terminal

? Two type program mode can be selected to change input mode level

M: Low level Binary code input enables, divided by 3 to 255 .

M: High level BCD code enables that the data at P . 1 to P6 port is offset 90 by code converter

? Internal active filter amplifier has a long holding time due to very high input impedance characteristics of the CMOS–this is to obtain very good spurious response.

? Output signal of the “I” can be used to stop the spurious radiation when the channel selector makes misprogramming such as rotary switch’s lose contact.

? High speed and low power consumption due to CMOS

? Single power supply and fully TTL compatible: VDD = 5 ± 0.5 Volts

? Operating Temperature: TA = –30° to 65°C

? Pull down resistors installed in program and mode switch inputs