TQ5633

WIRELESS COMMUNICATIONS DIVISION TQ5633 RF INPUT RF IN VDD RF Amplifier Vdd LO IN LO Input RF amplifier Control DATA SHEET GND IF Common Mode Tune 3V PCS Band CDMA RFA/Mixer IC Tune GND Mixer Vdd VDD IF out IF OUTPUT Features Small size: SOT23-8 Single 3V operation Low-current operation Product Description The TQ5633 is a 3V, RF Amplifier/Mixer IC designed specifically for PCS band CDMA applications. It’s RF performance meets the requirements of products designed to the IS-95 standard. The TQ5633 is designed to be used with an IF frequency of 110MHz, and uses a balanced mixer to achieve ½ IF rejection. When used with the TQ3631 or TQ3632 (CDMA LNAs) it provides a complete CDMA receiver for 1900MHz phones. The RF Amplifier/Mixer incorporates on-chip switches which determine two gain select states. The RF and LO input ports are internally matched to 50 Ω, greatly simplifying the design and keeping the number of external components to a minimum. The TQ5633 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 Min Typ 1960 16.0 5.8 -0.5 23.0 LO input –4dBm, CDMA High Gain state. Gain Select High IP3 performance Few external components Excellent ½ IF rejection 110MHz IF Frequency 50 Ω RF and LO inputs Applications IS-95 CDMA Mobile Phones Wireless Local Loop PCS Micro-cell Paramete...