TQ5122

WIRELESS COMMUNICATIONS DIVISION TQ5122 DATA SHEET GND 1 GND Vdd MXR 2 3 16 15 14 13 12 11 10 9 GND GND IF Output/Vdd GND MXR RF Input GND LNA Out Sleep Control MXR LO 4 VDD LNA GND RF IN GND 5 6 7 8 3V Cellular TDMA/AMPS Receiver IC With PowerDown Features   Power-Down, “Sleep” Mode Single 2.8V operation Low-current operation Small QSOP-16 plastic package Few external components Product Description   The TQ5122 is a 3V, RF receiver IC designed specifically for Cellular band TDMA applications. It’s RF performance meets the requirements for products designed to the  IS-136 TDMA and the AMPS standards. The TQ5122 includes a power–down mode which allows current saving during standby and the non-operating portion of the TDMA pulse. The TQ5122 contains LNA and Mixer circuits matched to the 800MHz cellular band. The mixer uses a high-side LO frequency. The IF has a usable frequency range of 85 to 150MHz. The LNA Output and Mixer Input ports are internally matched to simplify the design and keep the number of external components to a minimum. The TQ5122 achieves excellent RF performance with low current consumption which yields long standby times in portable applications. The small QSOP-16 package is ideally suited for Cellular band mobile phones. Electrical Specifications1 Parameter Frequency Gain Noise Figure Input 3rd Order Intercept Min 869 18.5 2.7 -8.5 12.0 Typ Max 894 Units MHz dB dB dBm mA Applications    IS-136 TDMA Mobile Phones Dual Mode TDMA/AMPS Mobile P...