TQ5631

WIRELESS COMMUNICATIONS DIVISION GND RF IN TQ5631 DATA SHEET GND VDD 3V PCS Band CDMA RFA/Mixer IC IF out VDD GIC LO IN Features Small size: SOT23-8 Single 3V operation Low-current operation Product Description The TQ5631 is a 3V, RFAmplifier/Mixer IC designed specifically for PCS band CDMA applications. It’s RF performance meets the requirements of products designed to the IS-95 standards. The TQ5631 is designed to be used with the TQ3631 (CDMA LNA) which provides a complete CDMA receiver for 1900MHz phones. The RFA/Mixer incorporates on-chip switches which determine gain select states. When used with the TQ3631 (CDMA LNA), four gain steps are available. The RF input port is internally matched to 50 Ω, greatly simplifying the design and keeping the number of external components to a minimum. The TQ5631 achieves good RF performance with low current consumption, supporting long standby times in portable applications. Coupled with the very small SOT23-8 package, the part is ideally suited for PCS band mobile phones. Electrical Specifications1 Parameter Frequency Gain Noise Figure Input 3rd Order Intercept DC supply Current Min Typ 1960 15.0 5.7 1.0 20.0 LO input –4dBm, CDMA High Gain state. Gain Select High IP3 performance Few external components Applications IS-95 CDMA Mobile Phones Max Units MHz dB dB dBm mA Note 1: Test Conditions: Vdd=2.8V, RF=1960MHz, LO=1750MHz, IF=210MHz, Ta=25C, For additional information and latest specifications, see our website: www...