SX1240 Ver la hoja de datos (PDF) - Semtech Corporation

Número de pieza

componentes Descripción

Fabricante

SX1240

Low Cost Integrated Transmitter IC 434 MHz and 868 MHz Band RF Transmitter

Semtech Corporation 

ADVANCED COMMUNICATIONS & SENSING

SX1240

Integrated Transmitter IC

DATASHEET

3. Application Modes

The SX1240 has two application modes. These are selected depending upon the load presented to the Control pin (6) at

power-on of the device, as shown on Figure 3. By connecting the Control pin to logical ‘0’ or ‘1’ the Power & Go mode is

selected. A full description of operation in this mode is given in Section 3.1. By presenting a logical zero to the Control

input, Advanced Mode can be accessed by subsequent clocking of the control pin, in conjunction with the Data pin (2)

permits programming of the SX1240 configuration register and manual control of the transmitter. For more information on

Advanced Mode operation please consult Section 3.2. The diagram below summarises the mode selection process.

Figure 3. SX1240 Mode Selection

Table 6 Control Pin Selection of the Application Mode

CTRL Pin (6)

Logic ‘1’ or ‘0’

Logic ‘0’ then Clock on CTRL

Application Mode

Power & Go Mode (see Section 3.1)

Advanced Mode (see Section 3.2)

SX1240, Rev 1, Oct 2010

©2010 Semtech Corp.

Page 8

www.semtech.com

Share Link: