PCF5078 - NXP

PCF5078 Power amplifier controller

APPLICATIONS PCF5078 • Global System for Mobile communication (GSM) • Personal Communications Network (PCN) systems. This CMOS device integrates an amplifier for the detected RF voltage from the sensor, an integrator and an active filter to build a PA control loop for cellular systems with a small amount of passive components. MAX. 5.0 +85 UNIT V mA °C .

Features

• Compatible with baseband interface family PCF5073x
• Two power sensor inputs
• Temperature compensation of sensor signal
• Active filter for DAC input
• Power Amplifier (PA) protection against mismatching
• Bias current source for detector diodes
• Generation of pre-bias level for PA at start of burst (home position)
• Possibility to adapt home position by external components
• Applicable for a wide range of silicon and GaAs power amplifiers. QUICK REFERENCE DATA SYMBOL VDD IDD(tot) Tamb supply voltage total supply current operating ambient temperature PARAMETER − −40 MIN. 2.4 − − TYP. 3.6 6.