ZABG6002

ZABG6002

Document number: DS32078 Rev. 1 - 2

1 of 12

www.diodes.com

May 2010

© Diodes Incorporated

A Product Line of

Diodes Incorporated

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

• 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

• 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

Pin Assignments

QFN2044

QSOP20

Applications

• Twin LNB’s

• Quad LNB’s

• US LNB’s

• Microwave links

• PMR and Cellular telephone systems

Twin LNB System Diagrams

ZABG

6002

ZXHF

5002

ZABG

6002

ZXHF

5002

ZABG

6002

ZLNB

102

ZABG

6002

ZLNB

102

 

G2

D3

G3

D5

D2

G5

D6

G6

Rcal1

RcalM

G2

D3

G3

D5

D2

G5

D6

G6

Rcal1

RcalM

G2

D3

G3

D5

D2

G5

D6

G6

Rcal1

RcalM

Csub

Csub

Csub

G1

D2

G2

D4

D5

Rcal2

Rcal1

G4

RcalM

Gnd

G3

D3

D6

G5

Csub

Cnb2

G6

Cnb1

D1

1

Vcc

G1

D2

G2

D4

D5

Rcal2

Rcal1

G4

RcalM

Gnd

G3

D3

D6

G5

Csub

Cnb2

G6

Cnb1

D1

1

Vcc