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ZNBG3113

Zetex Semiconductors
Part Number ZNBG3113
Manufacturer Zetex Semiconductors
Description FET BIAS CONTROLLER WITH POLARISATION SWITCH AND TONE DETECTION
Published Apr 17, 2005
Detailed Description FET BIAS CONTROLLER WITH POLARISATION SWITCH AND TONE DETECTION ISSUE 1 - OCTOBER 1998 DEVICE DESCRIPTION The ZNBG serie...
Datasheet PDF File ZNBG3113 PDF File

ZNBG3113
ZNBG3113

Overview
FET BIAS CONTROLLER WITH POLARISATION SWITCH AND TONE DETECTION ISSUE 1 - OCTOBER 1998 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.
With the addition of two capacitors and a resistor the devices provide drain voltage and current control for three external grounded source FETs, generating the regulated negative rail required for FET gate biasing whilst operating from a single supply.
This negative bias, at -3 volts, can also be used to supply other external circuits.
The ZNBG3113/14 includes bias circuits to drive up to...


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