PBL40309

Preliminary PBL 403 09 August 2000 PBL 403 09 3.6 V Differential Power Amplifier for DECT Telecommunications system Description. The PBL 403 09 is a differential two stage silicon MMIC power amplifier intended for use in handheld cordless terminals in the 1900 MHz band. It can deliver more than 27 dBm at 1900 MHz into a balanced 50 Ω load using a single 3.6 V supply. The circuit has a logic input to control transmit on/off and can be operated up to 100 % duty cycle with minimum performance degradation. The circuit is housed in a specially designed QSOP16 (150 mil body ) package and the implementation requires only few external components. 25 GHz ft state-of-the-art deep trench isolated double-poly silicon bipolar process with additional features for improved wireless performance has been used. On-chip capacitors and inductors are used for the integrated internal matching network. Special front-side metallized substrate contacts provide excellent ground paths from active devices to the highly doped semiconductor substrate and package ground. Key features. 27 dBm output power 25 dB small signal gain 50 % Power Added Efficiency Simple logic on/off power control Battery charging conditions to 5.0 V ESD protected Excellent ruggedness On-chip input and interstage matching Differential input matched to 50 Ω Easy implementation with a simple output matching network Proven RF Silicon Technology Reliability Low overall solution cost V CC RF In A RF Out A & ...