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DS8628

Part Number	DS8628
Manufacturer	National Semiconductor
Description	130/225 MHz Low Power Prescalers
Published	Mar 30, 2005
Detailed Description	DS8627 DS8628 130 225 MHz Low Power Prescalers June 1986 DS8627 DS8628 130 225 MHz Low Power Prescalers General Descri...
Datasheet	DS8628 PDF File

Overview

DS8627 DS8628 130 225 MHz Low Power Prescalers June 1986 DS8627 DS8628 130 225 MHz Low Power Prescalers General Description The DS8627 and DS8628 are low power fixed ratio prescalers which divide by 24 and 20 respectively The inputs can be driven either single or double-ended and they are buffered providing 40 100 mVrms input sensitivity The output provided is open-collector and is capable of interfacing with TTL and CMOS The device can be used in phase-locked loop applications such as FM radio or other communications bands to prescale the input frequency down to a more usable level A digital frequency display system can also be derived separately or in conjunction with a phase-locked loop and it can extend the useful range of many inexpensive frequency counters to 225 MHz Features Y Y Y Input frequency 130 MHz (-4 -3) 225 mHz (-2 std) Low power 10 mA (-4 -2) 7 mA (-3 std) Input sensitivity 100 mVrms (-4 -3) 40 mVrms (-2 std) Logic and Connection Diagrams DS8627 ( d 24) TL F 5009...

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