The TRF8010 is an RF transmit driver amplifier for 900-MHz digital, analog, and dual-mode communication applications. It consists of a two-stage amplifier and a linear ramp controller for burst control in TDMA (time division multiple access) applications. Very few external components are required for operation. The TRF8010 amplifies the RF signal from the preceding modulator and upconverter stages in an RF section of a transmitter to a level that is sufficient to drive a final RF power output device. The output impedance of RFOUT is approximately 50 . But, since RFOUT is connected to an open-collector output device, minimal external matching is required. The device is enabled when the TXEN input is held high. A power control signal applied to the VPC input can ramp the RF output power up or down to meet ramp and spurious emission specifications in TDMA systems. The power control signal causes a linear change in output power as the voltage applied to VPC varies between 0 V and 3 V. With the RF input power applied to RFIN at 0 dBm and TXEN high, adjusting VPC from 0 V to 3 V increases the output power from a typical value of 54 dBm at VPC = 0 V to the output power appropriate for the application: