SP8794

SP8794 60MHz48 (2-MODULUS EXTENDER) ADVANCE INFORMATION DS3676-1·2 The SP8794 is a divide-by-eight counter designed for use with 2-modulus dividers. It increases the minimum division ratio of the 2-modulus divider while retaining the same difference in division ratio. The device is suitable for use in low power frequency synthesis interfacing to CMOS or TTL. FEATURES s Very Low Power s Control Input and Counter Output will Interface Directly to TTL or CMOS s Interfaces to GPS SP8000 Series Programmable 2-Modulus Dividers QUICK REFERENCE DATA s Supply Voltage: 5·0V s Power Consumption: 40mW s Temperature Range: 255°C to 1125°C (A Grade) 230°C to 170°C (B Grade) ABSOLUTE MAXIMUM RATINGS Supply voltage Open collector output voltage Storage temperature range Max. junction temperature Max. clock input voltage Output sink current 8V 12V 265°C to 1150°C 1175°C 2·5V p-p 10mA CLOCK INPUT CLOCK INPUT VCC CONTROL INPUT VEE 78 1 62 54 3 CONTROL OUTPUT COUNTER OUTPUT NC CM8 Fig. 1 Pin connections - bottom view ORDERING INFORMATION SP8794 A CM SP8794 B CM SP8794 AC CM CONTROL 2 OUTPUT CONTROL INPUT 6 DQ DQ CK CK VCC 1 DQ DQ CK CK DQ DQ CK CK OUTPUT STAGE 3 OPEN COLLECTOR COUNTER OUTPUT 87 CLOCK INPUT CLOCK INPUT 5 VEE (0V) NOTE: NEGATIVE GOING OUTPUT SHOULD CLOCK FOLLOWING STAGE Fig. 2 Functional diagram SP8794 ELECTRICAL CHARACTERISTICS Unless otherwise stated, the Electrical Characteristics are guaranteed over specified supply, frequency and temperature range S...