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 Phones AMPS Mobile Phones DC supply Current Note 1: Test Conditions: Vdd=2.8VDC, Tc=25° C, Filter IL=2.5dB, RF=881MHz, LO=1016MHz, IF=135MHz, LO input=-7dBm For additional information and latest specifications, see our website: www.triquint.com 1 TQ5122 Data Sheet Electrical Characteristics1,2 Parameter RF Frequency LO Frequency IF Frequency LO input level Supply voltage Gain Gain Variation vs. Temp. Noise Figure Input 3rd Order Intercept LNA input – with external match LNA output Mixer RF input Mixer LO input Isolation LO to LNA RF in LO to IF; after IF match RF to IF; after IF match IF Output Impedance Vdd = 2.8V; Sleep mode, Device On Vdd = 2.8V; Sleep mode, Device Off Vdd = 0V Power Down, “sleep” Device On Voltage Device Off Voltage Supply Current, Sleep mode, Device On Supply Current, Sleep mode, Device Off Operating Temperature, case Tc = + 25 °C Enable voltage = 0, LO Drive off -40 0 -11.0 10 10 10 10 35 40 20 500 Approx. Open