SI4012 Ver la hoja de datos (PDF) - Silicon Laboratories

Número de pieza

componentes Descripción

fabricante

SI4012

CRYSTAL-LESSFSK/OOK RF TRANSMITTER

Silicon Laboratories 

Si4012

2. Typical Application Schematic

CR2032

Coin Cell

1.8 to 3.6 V

See Note 2 C3

C2

Loop Antenna

X1

C1

1 µF

Optional

1 XTAL

2 GND

3 TXM

4 TXP

5 VDD

Si4012

D1

SDA 10

SCL 9

SDN 8

nIRQ 7

LED 6

See Note 1

R2

R1

Host MCU

Notes:

1. The Si4012 has internal 50 k pull-up resistors. Additional optional external pull-up resistors may be added should the

board design required it.

2. See note about how to choose the value of C3 in "5.2.10. PROPERTY: XO_CONFIG" on page 39.

8

Rev 1.1

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