TRF6901

· Single-Chip RF Transceiver for 868-MHz and 915-MHz Industrial, Scientific, and Medical (ISM) Bands
· 1.8-V to 3.6-V Operation
· 860-MHz to 930-MHz Operation
· Low Power Consumption
· FSK/OOK Operation
· Integer-N Synthesizer With Fully Integrated Voltage Controlled Oscillator (VCO)
· On-Chip Reference Oscillator and Phase-Locked Loop (PLL)
· 8-dBm Typical Output Power
· Programmable Brownout Detector
· Linear Receive Strength Signal Indicator (RSSI)
· Flexible 3-Wire Serial Interface
· Minimal Number of External Components Required
· 48-Pin Low-Profile Plastic Quad Flat Package (PQFP)
· Programmable XTAL Trimming

Supply voltage range  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  −0.6 to 4.5 Vdc .
Input voltage, logic signals  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.6 to 4.5 Vdc
Storage temperature range, T_stg  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65°C to 150°C
ESD protection, human body model (HBM)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 kV
† Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

The TRF6901 single-chip solution is an integrated circuit intended for use as a low cost FSK or OOK transceiver to establish a frequency-programmable, half-duplex, bidirectional RF link. The multichannel transceiver of TRF6901 is intended for digital (FSK, OOK) modulated applications in the new 868-MHz European band and the North American 915-MHz ISM band. The single-chip transceiver of TRF6901 operates down to 1.8 V and is designed for low power consumption. The synthesizer has a typical channel spacing of better than 200 kHz and uses a fully-integrated VCO. Only the PLL loop filter is external to the device.

Two fully-programmable operation modes, Mode0 and Mode1, allow extremely fast switching between two preprogrammed settings (for example,  receive (RX)/transmit (TX); TX_frequency_0/TX_frequency_1;  RX_frequency_0/RX_frequency_1; .) without reprogramming the TRF6901.