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SP8853

Part Number	SP8853
Manufacturer	Mitel Networks
Description	13GHz Professional Synthesiser
Published	Jun 7, 2005
Detailed Description	SP8853A/B 1·3GHz Professional Synthesiser Supersedes March 1997 version, DS2352 - 3.0 DS2352 - 4.0 March 1998 The SP885...
Datasheet	SP8853 PDF File

Overview

SP8853A/B 1·3GHz Professional Synthesiser Supersedes March 1997 version, DS2352 - 3.
0 DS2352 - 4.
0 March 1998 The SP8853 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 data highway and contains three independent buffers to store one reference divider word and two local oscillator divider words.
A digital phase detector with two charge pumps, programmable in phase and gain, are provided to improve lock-up performance.
The preset operation of the charge pumps can be overwritten or the comparison frequencies switched to output ports under control of the divider word.
The dual modulus ratio and so operating range is also programmable through the same word.
A power down mode is incorporated as a battery economy feature.
The SP8853 is specified at 1·3GHz at 255°C to1125°C (A grade) and 240°C to1...

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