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SP8853BHC Datasheet

Part Number SP8853BHC
Manufacturers Mitel Networks
Logo Mitel Networks
Description 13GHz Professional Synthesiser
Datasheet SP8853BHC DatasheetSP8853BHC Datasheet (PDF)

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 di.

  SP8853BHC   SP8853BHC






13GHz Professional Synthesiser

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 to185°C (B grade). FPD* LOCK DETECT PD1 OUTPUT VEE3 4 3 2 1 28 27 26 25 24 23 FREF* POWER DOWN VEE4 VCC4 VCC1 RF INPUT RF INPUT NC Cd IC 5 6 7 8 9 10 11 12 13 14 15 16 17 18 PD2 OUTPUT RPD VCC3 GROUND XTAL 1 XTAL2 VEE2 SP8853 22 21 20 19 DATA CLOCK ENABLE F1/F2 VEE1 NC FEATURES s Improved Digital Phase Detector Eliminates ‘Dead Band’ Effects s Low Operating Power, Typically 175mW s 1·3GHz Operating Frequency s Complete Phase Locked Loop s High Input Sensitivity s Programmed.


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