Overview: TRF4903 SINGLEĆCHIP MULTIBAND RF TRANSMITTER D Single-Chip RF Transmitter for 315-MHz,
433-MHz, 868-MHz, and 915-MHz Industrial, Scientific, and Medical (ISM) Bands
D 2.2-V to 3.6-V Operation D Low Power Consumption D FSK/OOK Operation D Integer-N Synthesizer With Fully Integrated
Voltage Controlled Oscillator (VCO)
D On-Chip Reference Oscillator and
Phase-Locked Loop (PLL)
D Power Amplifier With 8-dBm Typical Output
Power SWRS023B − MAY 2004 − REVISED MARCH 2005
D Programmable Brownout Detector D Integrated Data Bit Synchronizer and Baud
Rate Selection
D Flexible 3-Wire Serial Interface D Minimal Number of External ponents
Required
D 24-Pin Plastic Thin-Shrink Small Outline
Package (TSSOP)
D Programmable XTAL Trimming D Lock Detect Indicator D panion Transmitter to the TRF6903
Transceiver TX_DATA MODE STDBY
PA_OUT PA_GND1
PA_VCC PA_GND2 VCO_PRE_VCC VCO_GND VCO_CORE_VCC VCO_BYPASS VCO_TUNE PW PACKAGE (TOP VIEW)
1 24 2 23 3 22 4 21 5 20 6 19 7 18 8 17 9 16 10 15 11 14 12 13 CLOCK DATA STROBE GND XTAL_SW XTAL DGND DVDD DET_LD_DCLK CP_GND CP_OUT CP_VCC These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the gates. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.
