RF9801

Product Summary

The RF9801 is a dual band (EGSM900/DCS1800) GSM/GPRS/Linear Edge, Class 12 compliant Transmit Module with two symmetrical receive ports. This transmit module builds upon RFMDs successful RF716X family incorporating full EDGE capability while maintaining a common footprint for ease of phone platform design. The RF9801 continues to build upon RFMDs leading patented PowerStar Architecture to include such features as Power Flattening Circuit, VRAMP Filtering, VBATT Tracking, and EDGE Low Power Mode. The module includes a multi-function CMOS controller, GaAs HBT power amplifier, and pHEMT front end antenna switch. The amplifier devices are manufactured on RFMDs Advance Gallium Arsenide Heterojunction Bipolar Transistor (GaAs HBT) Process, which is designed to operate either in saturated mode for GMSK or linear mode for EDGE 8PSK signaling. The highly integrated transmit module simplifies the phone design by eliminating the need for complicated control loop design, output RF spectrum, (ORFS) optimization, harmonic filtering, and component matching, all of which combine to provide best in class RF performance, solution size, and ease of implementation for cellular phone systems. The RF ports are 50 matched and the antenna port includes ESD protection circuitry which meets the stringent 8kV industry standards requiring no additional components. All of these eliminated factors help to improve the customers product time to market.

Parametrics

RF9801 absolute maximum ratings: (1)Supply Voltage: -0.3 to +6.0 V; (2)Power Control Voltage (VRAMP): -0.3 to +1.8 V; (3)Input RF Power: +10 dBm; (4)Max Duty Cycle: 50 %; (5)Output Load VSWR: 20: 1; (6)Operating Case Temperature: -20 to +85 ℃; (7)Storage Temperature: -55 to +150 ℃.

Features

RF9801 features: (1)Dual Mode Operation; (2)Proven PowerStar Architecture; (3)Integrated Power Flattening Circuit; (4)Integrated VRAMP Filter; (5)Digital Bias Control; (6)Edge Low Current Mode; (7)No External Routing; (8)Symmetrical RX Ports; (9)High Gain Supports Low Drive Level; (10)Pin Compatibility with RF716X Family; (11)Robust 8kV ESD Protection at Antenna Port; (12)Integrated VBATT Tracking Circuit.

Diagrams