Part # LMX3161 datasheet

Part Manufacturer: National Semiconductor

National Semiconductor

Part Description: LMX3161


Part Details:

LMX3161 PRELIMINARY November 1999 LMX3161 Single Single Chip Radio Transceiver General Description vides a low cost, high performance solution for communica- Chip tions systems. The RSSI output may be used for channel The LMX3161 Single Chip Radio Transceiver is a monolithic, quality monitoring. integrated radio transceiver optimized for use in a Digital En- The Single Chip Radio Transceiver is available in a 48-pin hanced Cordless Telecommunications (DECT) system. It is 7mm X 7mm X 1.4mm PQFP surface mount plastic pack- Radio fabricated using National s ABiC V BiCMOS process age. (f = 18 GHz). T The LMX3161 contains phase locked loop (PLL), transmit Features and receive functions. The 1.1 GHz PLL block is shared be- T tween transmit and receive section. The transmitter includes n Single chip solution for DECT RF transceiver ransceiver a frequency doubler, and a high frequency buffer. The re- n RF sensitivity to -93 dBm; RSSI sensitivity to -100 dBm ceiver consists of a 2.0 GHz low noise mixer, an intermediate n Two regulated voltage outputs for discrete amplifiers frequency (IF) amplifier, a high gain limiting amplifier, a fre- n High gain (85 dB) intermediate frequency strip quency discriminator, a received signal strength indicator n Allows unregulated 3.0V­5.5V supply voltage (RSSI), and an analog DC compensation loop. The PLL, n Power down mode for increased current savings doubler, and buffers can be used to implement open loop n System noise figure 6.5 dB (typ) modulation along with an external VCO and loop filter. Thecircuit features on-chip voltage regulation to allow supplyvoltages ranging from 3.0V to 5.5V. Two additional voltage Applications regulators provide a stable supply source to external dis- n Digital Enhanced Cordless Telecommunications (DECT) crete stages in the Tx and Rx chains. n Personal wireless communications (PCS/PCN) The IF amplifier, high gain limiting amplifier, and discrimina- n Wireless local area networks (WLANs) tor are optimized for 110 MHz operation, with a total IF gain n Other wireless communications systems of 85 dB. The single conversion receiver architecture pro- Block Diagram DS012815-1 MICROWIRETM is a trademark of National Semiconductor Corporation.TRI-STATE® is a registered trademark of National Semiconductor Corporation. © 1999 National Semiconductor Corporation


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LMX3161.pdf Datasheet