CC1050

SWRS044

Page 2 of 40

Table of Contents

Absolute Maximum Ratings ....................................................................................................... 4

Operating Conditions ................................................................................................................. 4

Electrical Specifications ............................................................................................................. 4

Pin Assignment .......................................................................................................................... 7

Application Circuit ...................................................................................................................... 9

Configuration Overview............................................................................................................ 10

Configuration Software............................................................................................................. 11

3-wire Serial Configuration Interface........................................................................................ 12

Microcontroller Interface........................................................................................................... 14

Signal interface ........................................................................................................................ 15

Frequency programming .......................................................................................................... 17

VCO ......................................................................................................................................... 17

VCO and PLL self-calibration................................................................................................... 17

VCO current control ................................................................................................................. 21

Power management ................................................................................................................. 21

Output Matching....................................................................................................................... 24

Output power programming ..................................................................................................... 25

Crystal oscillator....................................................................................................................... 26

Optional LC Filter ..................................................................................................................... 27

System Considerations and Guidelines ................................................................................... 28

PCB Layout Recommendations ............................................................................................... 29

Antenna Considerations........................................................................................................... 29

Configuration registers ............................................................................................................. 30

Package Description (TSSOP-24) ........................................................................................... 38

Soldering Information ............................................................................................................... 38

Plastic Tube Specification........................................................................................................ 38

Not Recommended for New Designs