RF2705

RF2705 0 Typical Applications EDGE/GSM (GSM850/900) Handsets EDGE/GSM (DCS/PCS) Handsets W-CDMA Handsets/Data Cards Product Description 4.00 LOW NOISE, MULTI-MODE, QUAD-BAND, QUADRATURE MODULATOR AND PA DRIVER W-CDMA/GSM/EDGE Multimode Handsets and Data Cards -A-B- 1.00 0.80 The RF2705 is a low noise, multi-mode, quad-band direct I/Q to RF modulator and PA driver designed for handset applications where multiple modes of operation are required. Frequency doublers, dividers and LO buffers are included to support a variety of LO generation options. Dynamic power control is supported through a single analog input giving 90dB of power control range for the W-CDMA mode and 40dB of power control in the other two modes. Three sets of RF outputs are provided: high band and low band low noise EDGE/GMSK outputs, as well as one wideband W-CDMA output. The device is designed for 2.7V to 3.3V operation, and is assembled in a plastic, 24-pin, 4mmx4mm QFN. 0.10 C 4.00 0.10 C 0.10 C 0.10 C 2.45 0.50 TYP +0.10 -0.10 Shaded lead is pin 1. Dimensions in mm. -C- SEATING PLANE Scale: None 0.10 C 0.08 C 2.45 +0.10 -0.10 0.05 0.00 0.30 TYP 0.18 0.10 M C A B 0.50 TYP 0.30 Optimum Technology Matching® Applied Si BJT Si Bi-CMOS InGaP/HBT MODE B Package Style: QFN, 24-Pin, 4x4 GaAs HBT SiGe HBT GaN HEMT GaAs MESFET 9SiGe Bi-CMOS MODE A GND 20 19 18 RF OUT WB P Si CMOS Features W-CDMA High/Mid/Low Power Modes Quad-Band Direct Quadrature Modulator Variable Gain PA D...