Micrel
MICRF506BML/YML
General Description ....................................................................................................................................................1
Features......................................................................................................................................................................1
Applications ................................................................................................................................................................1
RadioWire? RF Selection Guide ................................................................................................................................4
Ordering Information...................................................................................................................................................4
Block Diagram ............................................................................................................................................................4
Pin Configuration ........................................................................................................................................................5
Pin Description............................................................................................................................................................5
Absolute Maximum Ratings (1) .....................................................................................................................................6
Operating Ratings (2) ....................................................................................................................................................6
Electrical Characteristics (4) .........................................................................................................................................6
Programming ..............................................................................................................................................................9
Writing to the control registers in MICRF506 ...........................................................................................................10
Writing to a Single Register ......................................................................................................................................10
Writing to All Registers .............................................................................................................................................11
Writing to n Registers having Incremental Addresses..............................................................................................11
Writing to n Registers having Non-Incremental Addresses......................................................................................12
Reading from the control registers in MICRF506 .....................................................................................................12
Programming interface timing...................................................................................................................................12
Power on Reset ........................................................................................................................................................13
Programming summary ............................................................................................................................................14
Frequency Synthesizer.............................................................................................................................................15
Crystal Oscillator (XCO)........................................................................................................................................16
VCO ......................................................................................................................................................................17
Charge Pump ........................................................................................................................................................18
PLL Filter...............................................................................................................................................................18
Lock Detect ...........................................................................................................................................................18
Modes of Operation ..............................................................................................................................................18
Transceiver Sync/Non-Synchronous Mode ..............................................................................................................19
Data Interface ...........................................................................................................................................................19
Receiver....................................................................................................................................................................20
Front End ..............................................................................................................................................................20
Sallen-Key Filters ..................................................................................................................................................20
Switched Capacitor Filter ......................................................................................................................................21
RSSI......................................................................................................................................................................21
FEE .......................................................................................................................................................................22
Bit Synchronizer ....................................................................................................................................................23
Transmitter................................................................................................................................................................24
Power Amplifier .....................................................................................................................................................24
Modulator ..............................................................................................................................................................26
Using the XCO-tune Bits ..........................................................................................................................................28
Typical Application....................................................................................................................................................30
July 2006
2
M9999-092904
+1 408-944-0800
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