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MAX2029
High-Linearity, 815MHz to 1000MHz Upconversion/
Downconversion Mixer with LO Buffer/Switch
10 ______________________________________________________________________________________
Upconverter Curves
Typical Operating Characteristics (continued)
(
Typical Application Circuit
, L1 = 4.7nH, C4 = 4.7pF, C5 not used, V
CC
= +5.0V, P
LO
= 0dBm, P
IF
= 0dBm, f
RF
= f
LO
+ f
IF
,
f
IF
= 90MHz, unless otherwise noted.)
90
80
70
60
50
730 830780 880 930
LO - 2IF REJECTION vs. LO FREQUENCY
(L-C BPF TUNED FOR 940MHz RF FREQUENCY)
MAX2029 toc10
LO FREQUENCY (MHz)
LO - 2IF REJECTION (dBc)
P
IF
= 0dBm
T
C
= +85°C
T
C
= +25°C
T
C
= -40°C
90
80
70
60
50
730 830780 880 930
LO - 2IF REJECTION vs. LO FREQUENCY
(L-C BPF TUNED FOR 940MHz RF FREQUENCY)
MAX2029 toc11
LO FREQUENCY (MHz)
LO - 2IF REJECTION (dBc)
P
IF
= 0dBm
P
LO
= -3dBm
P
LO
= 0dBm
P
LO
= +3dBm
90
80
70
60
50
730 830780 880 930
LO - 2IF REJECTION vs. LO FREQUENCY
(L-C BPF TUNED FOR 940MHz RF FREQUENCY)
MAX2029 toc12
LO FREQUENCY (MHz)
LO - 2IF REJECTION (dBc)
P
IF
= 0dBm
V
CC
= 5.0V
V
CC
= 5.25V
V
CC
= 4.75V
100
90
80
70
60
730 830780 880 930
LO + 3IF REJECTION vs. LO FREQUENCY
(L-C BPF TUNED FOR 940MHz RF FREQUENCY)
MAX2029 toc13
LO FREQUENCY (MHz)
LO + 3IF REJECTION (dBc)
P
IF
= 0dBm
T
C
= +85°C
T
C
= +25°C
T
C
= -40°C
100
90
80
70
60
730 830780 880 930
LO + 3IF REJECTION vs. LO FREQUENCY
(L-C BPF TUNED FOR 940MHz RF FREQUENCY)
MAX2029 toc14
LO FREQUENCY (MHz)
LO + 3IF REJECTION (dBc)
P
IF
= 0dBm
P
LO
= -3dBm, 0dBm, +3dBm
100
90
80
70
60
730 830780 880 930
LO + 3IF REJECTION vs. LO FREQUENCY
(L-C BPF TUNED FOR 940MHz RF FREQUENCY)
MAX2029 toc15
LO FREQUENCY (MHz)
LO + 3IF REJECTION (dBc)
P
IF
= 0dBm
V
CC
= 4.75V, 5.0V, 5.25V
100
90
80
70
60
730 830780 880 930
LO - 3IF REJECTION vs. LO FREQUENCY
(L-C BPF TUNED FOR 940MHz RF FREQUENCY)
MAX2029 toc16
LO FREQUENCY (MHz)
LO - 3IF REJECTION (dBc)
P
IF
= 0dBm
T
C
= +85°C
T
C
= +25°C
T
C
= -40°C
100
90
80
70
60
730 830780 880 930
LO - 3IF REJECTION vs. LO FREQUENCY
(L-C BPF TUNED FOR 940MHz RF FREQUENCY)
MAX2029 toc17
LO FREQUENCY (MHz)
LO - 3IF REJECTION (dBc)
P
IF
= 0dBm
P
LO
= -3dBm, 0dBm, +3dBm
100
90
80
70
60
730 830780 880 930
LO - 3IF REJECTION vs. LO FREQUENCY
(L-C BPF TUNED FOR 940MHz RF FREQUENCY)
MAX2029 toc18
LO FREQUENCY (MHz)
LO - 3IF REJECTION (dBc)
P
IF
= 0dBm
V
CC
= 5.0V
V
CC
= 5.25V
V
CC
= 4.75V