DEVICE DESCRIPTION
The ZNBG series of devices are designed to meet the bias requirements of GaAs and HEMT FETs commonly used in satellite receiver LNBs, PMR, cellular telephones etc. with a minimum of external components.

FEATURES
• Provides bias for GaAs and HEMT FETs
• Drives up to three FETs
• Dynamic FET protection
• Drain current set by external resistor
• Regulated negative rail generator requires only 2 external capacitors
• Choice in drain voltage
• Wide supply voltage range
• Polarisation switch for LNBs
• 22kHz tone detection for band switching
• Tone detector ignores unwanted signals
• Support fr MIMIC, FET and Bipolar local oscillator devices
• Compliant with ASTRA control specifications
• QSOP 16 and 20 surface mount packages

APPLICATIONS
• Satellite receiver LNBs
• Private mobile radio (PMR)
• Cellular telephones