RF9958

RF9958 5 Typical Applications CDMA/FM Cellular Systems CDMA PCS Systems Wireless Local Loop Systems Spread Spectrum Cordless Phones High Speed Data Modems General Purpose Digital Transmitters CDMA/FM TRANSMIT MODULATOR, IF AGC, AND UPCONVERTER Product Description The RF9958 is an integrated complete Quadrature Modulator, IF AGC amplifier, and Upconverter designed for the transmit section of dual-mode CDMA/FM cellular and PCS applications. It is designed to modulate baseband I and Q signals, amplify the resulting IF signals while providing 95dB of gain control range, and perform the final upconversion to UHF. Noise Figure, IP3, and other specifications are designed to be compatible with the IS-98 Interim Standard for CDMA cellular communications. This circuit is designed as part of RFMD’s newest CDMA Chip Set, which also includes the RF9957 CDMA/FM Receive IF AGC and Demodulator. The IC is manufactured on an advanced 15GHz FT Silicon Bipolar process, and is supplied in a 28-lead plastic SSOP package. Optimum Technology Matching® Applied PIN 1 INDENT 6.20 5.79 3.99 3.81 0.25 0.10 0.36 TYP 0.23 0.635 TYP 5 MODULATORS AND UPCONVERTERS 10.01 9.80 7° 1.73 1.47 0.25 0.10 1.27 0.38 8° 0° NOTES: 1. Shaded lead is Pin1. 2. Lead frame material: Copper 194 3. Mold flash shall not exceed 0.006 (0.15 mm) per end. 4. Interlead flash shall not exceed 0.010 (0.25 mm) per side. 5. All dimensions are excluding mold flash and protrusions. ü Package Style: QSOP-28 Si BJT...