ADF4154 Analog Devices, ADF4154 Datasheet - Page 2

• Manufacturer Part Number: ADF4154
• Description: Fractional-n Frequency Synthesizer
• Manufacturer: Analog Devices

ADF4154
TABLE OF CONTENTS
Specifications..................................................................................... 3
Timing Characteristics..................................................................... 4
Absolute Maximum Ratings............................................................ 5
Pin Configuration and Pin Function Descriptions...................... 6
Typical Performance Characteristics ............................................. 7
Circuit Description........................................................................... 9
Registers ........................................................................................... 11
ESD Caution.................................................................................. 5
Reference Input Section............................................................... 9
RF Input Stage............................................................................... 9
RF INT Divider............................................................................. 9
INT, FRAC, MOD, and R Relationship...................................... 9
RF R Counter ................................................................................ 9
Phase Frequency Detector (PFD) and Charge Pump.............. 9
MUXOUT and Lock Detect...................................................... 10
Input Shift Registers ................................................................... 10
Program Modes .......................................................................... 10
Register Definition ..................................................................... 15
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Outline Dimensions ....................................................................... 20
R-Divider Register, R1 ............................................................... 15
Control Register, R2 ................................................................... 15
Noise and Spur Register, R3 ...................................................... 16
Reserved Bits............................................................................... 16
RF Synthesizer: A Worked Example ........................................ 16
Modulus....................................................................................... 17
Reference Doubler and Reference Divider ............................. 17
12-Bit Programmable Modulus................................................ 17
Spurious Optimization and Fast-lock...................................... 17
Fast-Lock Timer and Register Sequences ............................... 17
Fast-Lock: A Worked Example ................................................. 18
Fast-Lock: Loop Filter Topology .............................................. 18
Spurious Signals.......................................................................... 18
Filter Design—ADIsimPLL....................................................... 18
Interfacing ................................................................................... 18
PCB Design Guidelines for Chip Scale Package .................... 19
Ordering Guide .......................................................................... 20