Datenblatt-pdf.com


ZNBG2001 Schematic ( PDF Datasheet ) - Zetex Semiconductors

Teilenummer ZNBG2001
Beschreibung FET BIAS CONTROLLER
Hersteller Zetex Semiconductors
Logo Zetex Semiconductors Logo 




Gesamt 7 Seiten
ZNBG2001 Datasheet, Funktion
FET BIAS CONTROLLER
ZNBG2000
ZNBG2001
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
2 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 ZNBG2000/1 contains two bias stages. A single
resistor allows FET drain current to be set to the
desired level. The series also offers the choice of
drain voltage to be set for the FETs, the ZNBG2000
gives 2.2 volts drain whilst the ZNBG2001 gives 2
volts.
These devices are unconditionally stable over the full
working temperature with the FETs in place, subject
to the inclusion of the recommended gate and drain
capacitors. These ensure RF stability and minimal
injected noise.
It is possible to use less than the devices full
complement of FET bias controls, unused drain and
gate connections can be left open circuit without
affecting operation of the remaining bias circuits.
In order to protect the external FETs the circuits have
been designed to ensure that, under any conditions
including power up/down transients, the gate drive
from the bias circuits cannot exceed the range -3.5V
to 0.7V. Furthermore if the negative rail experiences a
fault condition, such as overload or short circuit, the
drain supply to the FETs will shut down avoiding
excessive current flow.
The ZNBG2000/1 are available in MSOP10 packages
for the minimum in devices size. Device operating
temperature is -40 to 80°C to suit a wide range of
environmental conditions.
FEATURES
Provides bias for GaAs and HEMT FETs
Drives up to two 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
MSOP surface mount package
APPLICATIONS
Satellite receiver LNBs
Private mobile radio (PMR)
Single in single out C Band LNB
Cellular telephones
ISSUE 1 - AUGUST 2001
1






ZNBG2001 Datasheet, Funktion
ZNBG2000
ZNBG2001
INFORMATION CONT.
APPLICATIONS
ZNBG2000/1
ZNBG2000/01 Pinout For MSOP10
Package Designator - X
1
D1
G1
GND
CNB1
CNB2
VCC
D2
G2
RCAL
CSUB
ORDERING INFORMATION
Part Number Package
ZNBG2000X10 MSOP10
ZNBG2001X10 MSOP10
Part Mark
ZNBG2000
ZNBG2001
QTY Reel
4000
4000
9
ISSUE 1 - AUGUST 2001
6

6 Page







SeitenGesamt 7 Seiten
PDF Download[ ZNBG2001 Schematic.PDF ]

Link teilen




Besondere Datenblatt

TeilenummerBeschreibungHersteller
ZNBG2000FET BIAS CONTROLLERZetex Semiconductors
Zetex Semiconductors
ZNBG2000X10FET BIAS CONTROLLERZetex Semiconductors
Zetex Semiconductors
ZNBG2001FET BIAS CONTROLLERZetex Semiconductors
Zetex Semiconductors
ZNBG2001X10FET BIAS CONTROLLERZetex Semiconductors
Zetex Semiconductors

TeilenummerBeschreibungHersteller
CD40175BC

Hex D-Type Flip-Flop / Quad D-Type Flip-Flop.

Fairchild Semiconductor
Fairchild Semiconductor
KTD1146

EPITAXIAL PLANAR NPN TRANSISTOR.

KEC
KEC


www.Datenblatt-PDF.com       |      2020       |      Kontakt     |      Suche