English
Language : 

HPMX-2006 Datasheet, PDF (6/8 Pages) Agilent(Hewlett-Packard) – 0.8 - 2.5 GHz Upconverter/Amplifier
HPMX-2006 Test Circuit
off board Cbl (>100 pF)
mixer LO input
C1 R3
1000 pF
10 pF 12 pF 12
LO in
LO in
Ref
off board Cbl (>100 pF)
50
50
50
50 Ω IF source off board Cbl
(>100 pF)
IF in
IF in
Amp1 Ve1
amp RF input
Amp RF in
off board Cbl (>100 pF)
standby input
enable
Figure 11. Test Board Configuration.
Mixer Vc
gnd
Amp Vc
Amp RF out
Amp Ve2
Amp1 Ve2
gnd
Mixer RF out
3V
0.01 µF
22 pF
2.2 pF
Amp RF output
printed
3V
100 pF
Mixer RF output
(at DC ground)
HPMX-2006 Circuit Use
Cbl (>100 pF)
mixer LO input
C1 R3
1000 pF
10 pF
C6
R1
Rterm
R2
C6
IF source
(Rs = Rterm)
C15
standby input
LO in
LO in
Ref
IF in
IF in
Amp1 Ve1
Amp RF in
enable
Mixer Vc
gnd
Amp Vc
Amp RF out
Amp Ve2
Amp1 Ve2
gnd
Mixer RF out
Sideband
Filter
Figure 12. Schematic Diagram of Typical IC Use.
Vcc
0.01 µF
22 pF
C8
Amp RF output
L2
Vcc
C12(100 pF)
C14
L3
Table 2 lists values for compo-
nents that change depending on
frequency of operation and AC or
DC coupling of the IF input. For
Table 2. Values for Variable Components (see next page for details).
2.5 GHz operation, a pre-amplifier
may be inserted between the
Mixer output and the Amp RF in.
Component Function
Value
Condition
Value Condition
Notes
C1, R3
LO AC coupling 12 pF + 12 Ω
F LO < 1.75 GHz
2.7 pF + 0 Ω
F LO > 1.75 GHz
de-Q with R = 12 Ω for
broadband operation
< 1.75 GHz
C6
IF AC coupling 100 pF typ
AC coupled
short ckt
DC coupled see also R1,R2
R1,R2
biases IF bases 50 Ω typ
AC coupled
open ckt
DC coupled
also sets load for
optimum IF[1]
C8, L2
amp out match
see Table 3 for values vs. frequency
L2 set by position of C12
L3, C14 mixer output match not used 1900 MHz operation 27 nH 900 MHz operation 900 MHz operation only
1.3 pF[2]
C15
amp input match not used 1900 MHz operation 3.3pF[2] 900 MHz operation 900 MHz operation only
Notes:
1. Noise Optimum at R1, R2 = 150 Ω
2. Optional
7-71