TRF4900

The TRF4900 is designed as one kind of single-chip RF transceiver that is available in a 24-lead TSSOP package and is designed to provide a fully-functional mmultichannel transmitter. This TRF4900 can easily be interfaced to a baseband processor such as the Texas Instruments MSP430 ultralow-power microcontroller, and controls registers are programmed by the MSP430, and the MSP430 performs baseband operations in software.

Features of the TRF4900 are:(1)single-chip RF transmitter for 868-MHz and 915-MHz ISM bands; (2)850-MHz to 950-MHz operation; (3)FM/FSK operation for transmit; (4)24-bit direct digital synthesizer (DDS) With 11-Bit DAC; (5)on-chip voltage-controlled oscillator (VCO) and phase-locked loop (PLL); (6)on-chip reference oscillator; (7)minimal external components required; (8)low power consumption; (9)typical output power of 7 dBm; (10)typical output frequency resolution of 230 Hz; (11)ultrafast lock times from DDS implementation; (12)two fully-programmable operational modes; (13)2.2-V to 3.6-V operation; (14)flexible serial interface to TI MSP430 microcontroller; (15)24-pin plastic thin-shrink small-outline package (TSSOP).

The absolute maximum ratings of the TRF4900 can be summarized as:(1)Power supply voltage range , VCCP, VDD, VDDA: -0.6 V to 4.5 V;(2)Input voltage, logic signals: -0.6 V to 4.5 V;(3)Storage temperature range: -65°C to 150 °C;(4)ESD integrity: 2 kV HBM. If you want to know more information about TRF4900, please download the datasheet in www.seekic.com or www.chinaicmart.com .