Diodes ZABG6002 User Manual
Zabg6002, Summary, Features
ZABG6002
ZABG6002
Document number: DS32078 Rev. 1 - 2
1 of 12
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
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
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
Hori
zont
a
l
Ve
rt
ica
l
ZABG
6002
ZXHF
5002
Hori
zont
a
l
Ve
rt
ica
l
ZABG
6002
2x2 MUX
ZLNB
102
Le
ft
Ri
ght
ZABG
6002
2x2 MUX
ZLNB
102
Le
ft
Ri
ght
G2
G
n
d
D3
G3
Cn
b
1
G
1
D
4
Vc
c
D1
D5
D2
G5
Cn
b
2
C
s
ub
D6
G6
Rc
a
l2
Rcal1
RcalM
G4
G2
G
n
d
D3
G3
Cn
b
1
G
1
D
4
Vc
c
D1
D5
D2
G5
Cn
b
2
C
s
ub
D6
G6
Rc
a
l2
Rcal1
RcalM
G4
G2
G
n
d
D3
G3
Cn
b
1
G
1
D
4
Vc
c
D1
D5
D2
G5
Cn
b
2
C
s
ub
D6
G6
Rc
a
l2
Rcal1
RcalM
G4
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