CC1070 datasheet(2/57 Pages) TI

Part #	CC1070

Description	Single Chip Low Power RF Transmitter for Narrowband Systems

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Manufacturer	TI [Texas Instruments]

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CC1070

SWRS043

Page 2 of 58

Table of Contents

1

Abbreviations................................................................................................................ 4

2

Absolute Maximum Ratings ........................................................................................ 5

3

Operating Conditions ................................................................................................... 5

4

Electrical Specifications .............................................................................................. 5

4.1

RF Transmit Section ............................................................................................ 6

4.2

Crystal Oscillator Section..................................................................................... 8

4.3

Frequency Synthesizer Section........................................................................... 9

4.4

Digital Inputs / Outputs ...................................................................................... 10

4.5

Current Consumption......................................................................................... 11

5

Pin Assignment........................................................................................................... 12

6

Circuit Description...................................................................................................... 13

7

Application Circuit...................................................................................................... 13

8

Configuration Overview ............................................................................................. 16

8.1

Configuration Software ...................................................................................... 16

9

Microcontroller Interface ........................................................................................... 17

9.1

4-wire Serial Configuration Interface ................................................................. 18

9.2

Signal Interface .................................................................................................. 20

10

Data Rate Programming............................................................................................. 22

11

Frequency Programming ........................................................................................... 23

11.1

Dithering ......................................................................................................... 24

12

Transmitter .................................................................................................................. 24

12.1

FSK Modulation Formats ............................................................................... 24

12.2

OOK Modulation............................................................................................. 24

12.3

Output Power Programming........................................................................... 25

12.4

TX Data Latency............................................................................................. 26

12.5

Reducing Spurious Emission and Modulation Bandwidth ............................. 26

13

Output Matching and Filtering .................................................................................. 26

14

Frequency Synthesizer .............................................................................................. 29

14.1

VCO, Charge Pump and PLL Loop Filter....................................................... 29

14.2

VCO and PLL Self-Calibration ....................................................................... 30

14.3

PLL Turn-on Time versus Loop Filter Bandwidth .......................................... 31

14.4

PLL Lock Time versus Loop Filter Bandwidth ............................................... 32

15

VCO Current Control .................................................................................................. 32

16

Power Management.................................................................................................... 33

17

Crystal Oscillator ........................................................................................................ 34

18

Built-in Test Pattern Generator ................................................................................. 36

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