SP8861 Description
SP8861 1·3GHz Low Power Single-Chip Frequency Synthesiser Supersedes version in the1996 Professional Products IC Handbook, HB2480 - 3.0 DS3640 - 4.0 April 1998 The SP8861 is a low power single chip synthesiser intended for professional radio applications, containing all the elements (apart from the loop amplifier) required to build a PLL frequency synthesis loop The device is serially programmable by a three-wire...
SP8861 Key Features
- preamplifier and prescaler supplies s Programmed throughThree-Wire Bus .. VCC2, VEE2
- oscillator supplies s Wide Range of Reference Division Ratios VCC3, VEE3
- charge pump 2 supplies s Local Storage for Two Frequency Words, giving VCC4, VEE4
- ECL supplies Rapid Frequency Toggling s Programmable Phase Detector Gain Fig. 1 Pin identification diagram (top view) s