1. 概述
The RF4019A is a high performance, highly flexible, low-cost, single-chip (G)FSK/OOK transmitter for various 240 to 960MHz wireless applications.
The RF4019A provides the simplest way to control the data transmission.
The transmission is started when an effective level turnover is detected on the DATA pin, while the transmission action will stop after the DATA pin holding level low for a defined time window, or after a two-wire interface (TWI) command is issued.
The chip features can be configured in two different ways: setting the configuration registers through the TWI, or programming the embedded EEPROM.
The device operates from a supply voltage of 1.9V to 3.6V, consumes 27.6mA (FSK @ 868.35MHz) when transmitting +10dBm output power, and only leak 20nA when it is in sleep state.
2. 特征
Frequency Range: 240 to 960 MHz
? FSK, GFSK and OOK Modulation
? Symbol Rate: 0.5 to 100ksps (FSK/GFSK)，0.5 to 30ksps (OOK)
? Deviation: 1.0 to 200 kHz
? VCC range from 1.9V to 3.6V
? Sleep Current: < 20nA
? Output Power: -10 to +13dBm