SP8852E Datasheet (Zarlink Semiconductor) - 1.7GHz PARALLEL LOAD PROFESSIONAL SYNTHESISER

SP8852E, 1.7GHz PARALLEL LOAD PROFESSIONAL SYNTHESISER

These are the inputs to the 16-bit data bus.

When pin 38 is high the data goes to the buffers for the A counter, M counter and phase detector gain.

When pin 38 is low the data goes to the buffers for the reference counter and the phase detector state (see Table 4).

Open circuit = 1 (high) on these p

SP8852E 2 7GHz Parallel Load Professional Synthesiser Preliminary Information Supersedes January 1996 version, DS4237 - 1.2 DS4237 - 2.0 June 1998 The SP8852E is one of a family of parallel load synthesisers containing all the elements apart from the loop amplifier to fabricate a PLL synthesis loop.

Other parts in the series are the SP8854E which has hard wired reference counter programming and requires only a single 16-bit programming word, and the SP8855E which is fully programmable using

SP8852E Features

* s 2

* 7 GHz Operating Frequency s Single 5V Supply HC44 s Low Power Consumption