ZABG6002 Datasheet, PDF (1/12 Pages) Diodes Incorporated – LOW POWER 6 STAGE FET LNA AND MIXER BIAS CONTROLLER

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Diodes Incorporated
ZABG6002
LOW POWER 6 STAGE FET LNA AND MIXER BIAS CONTROLLER
Summary
The ZABG6002 is a programmable low power depletion mode FET bias and mixer controller intended primarily for
satellite Low Noise Blocks (LNBs). Designed to provide system flexibility the ZABG6002 can be programmed to bias
six low noise amplifier (LNA) stages or four LNA and two active mixer stages, allowing the ZABG6002 to be used in
several system designs.
Combining advanced IC process and packaging techniques, the ZABG6002 operates with minimal current over a
wide supply voltage. The small package and reduced component count minimizes the PCB area whilst enhancing
overall LNB reliability.
Features
Pin Assignments
• Six stage FET bias controller, two configurable as
mixer stages
• Operating range of 3.0V to 8.0V
• Amplifier FET drain voltages set at 2.0V, mixer
drain voltage set at 0.25V
• Amplifier FET drain current selectable from 0 to
15mA, mixer current from 0 to 7.5mA
• Switchable FET’s for power management
• FET drain voltages and currents held stable over
temperature and V_CC variations
• FETs protected against overstress during power-
up and power-down.
• Internal negative supply generator allowing single
supply operation (available for external use)
• Low quiescent supply current, 1.6mA typical
• Low external component count
Applications
• Twin LNB’s
• Quad LNB’s
• US LNB’s
• Microwave links
• PMR and Cellular telephone systems
D2
G2
D3
G3
RcalM
QFN2044
D5
G5
D6
G6
Rcal1
1
D1
G1
D2
G2
D3
G3
RcalM
Gnd
Cnb1
Cnb2
QSOP20
Csub
Vcc
D4
G4
D5
G5
D6
G6
Rcal1
Rcal2
Csub
Twin LNB System Diagrams
ZABG
6002
ZXHF
5002
ZABG
6002
ZABG6002
Document number: DS32078 Rev. 1 - 2
1 of 12
www.diodes.com
ZLNB
102
May 2010
© Diodes Incorporated