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ADF4151BCPZ-RL7 Arkusz danych(PDF) 2 Page - Analog Devices |
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ADF4151BCPZ-RL7 Arkusz danych(HTML) 2 Page - Analog Devices |
2 / 28 page ADF4151 Data Sheet Rev. B | Page 2 of 28 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 General Description ......................................................................... 1 Functional Block Diagram .............................................................. 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Timing Characteristics ................................................................ 5 Absolute Maximum Ratings............................................................ 6 Transistor Count........................................................................... 6 ESD Caution.................................................................................. 6 Pin Configuration and Function Descriptions............................. 7 Typical Performance Characteristics ............................................. 9 Circuit Description......................................................................... 11 Reference Input Section............................................................. 11 RF N Divider............................................................................... 11 INT, FRAC, MOD, and R Counter Relationship.................... 11 INT N Mode................................................................................ 11 R Counter .................................................................................... 11 Phase Frequency Detector (PFD) and Charge Pump............ 11 MUXOUT and Lock Detect...................................................... 12 Input Shift Registers................................................................... 12 Program Modes .......................................................................... 12 Register Maps.............................................................................. 13 Register 0 ..................................................................................... 17 Register 1 ..................................................................................... 17 Register 2 ..................................................................................... 17 Register 3 ..................................................................................... 19 Register 4 ..................................................................................... 19 Register 5 ..................................................................................... 19 Initialization Sequence .............................................................. 19 RF Synthesizer—A Worked Example ...................................... 20 Modulus....................................................................................... 20 Reference Doubler and Reference Divider ............................. 20 12-Bit Programmable Modulus................................................ 20 Cycle Slip Reduction for Faster Lock Times........................... 21 Spurious Optimization and Fast lock ...................................... 21 Fast Lock Timer and Register Sequences................................ 21 Fast Lock—An Example............................................................ 22 Fast Lock—Loop Filter Topology............................................. 22 Spur Mechanisms ....................................................................... 22 Spur Consistency and Fractional Spur Optimization ........... 23 Phase Resync............................................................................... 23 Applications Information .............................................................. 24 Direct Conversion Modulator .................................................. 24 Interfacing ................................................................................... 25 PCB Design Guidelines for Chip Scale Package .................... 25 Outline Dimensions....................................................................... 26 Ordering Guide .......................................................................... 26 REVISION HISTORY 12/11—Rev. A to Rev. B Changes to Normalized 1/f Noise Parameter, Table 1 ................. 4 11/11—Rev. 0 to Rev. A Changes to Figure 28...................................................................... 23 10/11—Revision 0: Initial Version |
Podobny numer części - ADF4151BCPZ-RL7 |
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Podobny opis - ADF4151BCPZ-RL7 |
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