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Table of Contents

Table of Contents

.......................................................................................................... 2

1.0 Pin Descriptions

...................................................................................................... 3

1.1 Processor Mode Pin Configuration

.................................................................. 3

1.2 EEPROM Mode Pin Configuration

.................................................................... 4

2.0 Functional Description

........................................................................................... 5

2.1 TXC102 Processor Mode Application

.............................................................. 5

RF Transmitter Matching ..................................................................................... 5

Antenna Design Considerations........................................................................... 6

PCB Layout Considerations................................................................................. 6

2.2 EEPROM Mode Application

............................................................................... 8

3.0 TXC102 Functional Characteristics

..................................................................... 11

Output Amplifier ....................................................................................................... 11

Frequency Control (PLL) and Frequency Synthesizer ............................................. 11

Transmit Register..................................................................................................... 11

Crystal Oscillator...................................................................................................... 12

Wake-Up Mode ........................................................................................................ 12

Low Battery Detector ............................................................................................... 12

Key Switch Inputs .................................................................................................... 12

SPI Interface ............................................................................................................ 13

4.0 Control and Configuration Registers

.................................................................. 14

Table of Control and Configuration Registers .......................................................... 14

Status Register ........................................................................................................ 15

Configuration Register [POR=8080h] ...................................................................... 16

Transmit Power Configuration Register [POR=B0h] ................................................ 18

Transmit Command Register ................................................................................... 19

Frequency Setting Register [POR=A7D0h].............................................................. 20

Data Rate Setup Register [POR=C800h]................................................................. 21

Button Command Register [POR=CA00h] ............................................................... 22

Sleep/Clock Command Register [POR=C400h]....................................................... 23

Wake-up Timer Period Register [POR=E000h]........................................................ 24

Battery Detect Threshold Register [POR=C200h].................................................... 25

Power Management Register [POR=C000h] ........................................................... 26

5.0 Maximum Ratings

.................................................................................................. 27

Recommended Operating Ratings........................................................................... 27

6.0 DC Electrical Characteristics

............................................................................... 27

7.0 AC Electrical Characteristics

............................................................................... 28

8.0 Package Information

............................................................................................. 30