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ADF4196 データシートの表示(PDF) - Analog Devices

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ADF4196 Datasheet PDF : 28 Pages
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ADF4196
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
General Description ......................................................................... 1
Functional Block Diagram .............................................................. 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Timing Characteristics ................................................................ 4
Absolute Maximum Ratings............................................................ 5
Thermal Resistance ...................................................................... 5
Transistor Count........................................................................... 5
ESD Caution.................................................................................. 5
Pin Configuration and Function Descriptions............................. 6
Typical Performance Characteristics ............................................. 8
Theory of Operation ...................................................................... 11
General Description ................................................................... 11
Reference Input........................................................................... 11
RF Input Stage............................................................................. 11
PFD and Charge Pump.............................................................. 12
Differential Charge Pump ......................................................... 12
Fast Lock Timeout Counters..................................................... 12
Differential Amplifier ................................................................ 13
MUXOUT and Lock Detect ......................................................... 13
REVISION HISTORY
12/11—Rev. A to Rev. B
Changes to Figure 10, Figure 11, Figure 13, and
Figure 14 ............................................................................................ 9
Change to Figure 31 ....................................................................... 17
10/11—Revision A: Initial Version
Data Sheet
Input Shift Register .................................................................... 13
Register Map ................................................................................... 14
FRAC/INT Register (R0) Latch Map....................................... 15
MOD/R Register (R1) Latch Map ............................................ 16
Phase Register (R2) Bit Latch Map .......................................... 17
Function Register (R3) Latch Map........................................... 18
Charge Pump Register (R4) Latch Map .................................. 19
Power-Down Register (R5) Bit Map ........................................ 20
Mux Register (R6) Latch Map and Truth Table ..................... 21
Programming the ADF4196.......................................................... 22
Worked Example ........................................................................ 22
Spur Mechanisms ....................................................................... 22
Power-Up Initialization ............................................................. 23
Changing the Frequency of the PLL and the Phase Lookup
Table ............................................................................................. 23
Applications Information .............................................................. 25
Local Oscillator for a GSM Base Station ................................. 25
Interfacing ................................................................................... 27
PCB Design Guidelines ............................................................. 27
Outline Dimensions ....................................................................... 28
Ordering Guide .......................................................................... 28
Rev. B | Page 2 of 28

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