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SP8852EIGHCAR Datasheet(PDF) 1 Page - Mitel Networks Corporation |
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SP8852EIGHCAR Datasheet(HTML) 1 Page - Mitel Networks Corporation |
1 / 13 page 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 pro- gramming and requires only a single 16-bit programming word, and the SP8855E which is fully programmable using hard wired links or switches. The SP8852E is programmed using a 16-bit parallel data bus. Data can be stored in one of two internal buffers, selected by a single address bit on the input interface. In order to fully program the device, two 16-bit words are required, one to select the RF division ratio (A and M counters) and phase detector gain, and one to set the 10-bit reference divider count, phase detector state and sense. Once the reference divide ratio has been set, frequency changes can be made by a single 16-bit data load entry to the RF divider chain. *FPD and FREF outputs are reversed by the phase detector sense bit in the F1/F2 programming word, bit 12. The above diagram is correct when bit 12 is high. HC44 FEATURES s 2·7 GHz Operating Frequency s Single 5V Supply s Low Power Consumption <1·3W s High Comparison Frequency : 20MHz s High Gain Phase Detector : 1mA/rad s Zero ‘Dead Band’ Phase Detector s Wide Range of RF and Reference Division Ratios s Programming by Dual Word Data Transfer ABSOLUTE MAXIMUM RATINGS Supply voltage Operating temperature Storage temperature Prescaler and reference input voltage Data inputs Junction temperature 2 0·3V to 16V 2 55 °C to1100°C 2 65 °C to 1150°C 2·5Vp-p VCC 10·3V VEE 20·3V 1 175 °C ORDERING INFORMATION SP8852E KG HCAR Non-standard temperature range, 2 55 °C to 1100°C, standard product screening SP8852E IG HCAR Industrial temperature range, 2 40 °C to 185°C, standard product screening THERMAL DATA uJC = 5°C/W uJA = 53°C/W ESD PROTECTION 1000V, human body model Fig. 1 Pin connections - top view 144 B4 B3 B2 B1 B0 0V (PRESCALER) RF INPUT RF INPUT VCC (PRESCALER) VEE LOCK DETECT STROBE ADDRESS NC NC NC NC NC NC NC NC NC SP8852E |
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