Datasheet

MAX2029
High-Linearity, 815MHz to 1000MHz Upconversion/
Downconversion Mixer with LO Buffer/Switch
______________________________________________________________________________________ 11
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.)
-10
-20
-30
-40
-50
730 830780 880 930
LO LEAKAGE AT RF PORT vs. LO FREQUENCY
(L-C BPF TUNED FOR 940MHz RF FREQUENCY)
MAX2029 toc19
LO FREQUENCY (MHz)
LO LEAKAGE AT RF PORT (dBm)
T
C
= +85°C
T
C
= +25°C
T
C
= -40°C
-10
-20
-30
-40
-50
730 830780 880 930
LO LEAKAGE AT RF PORT vs. LO FREQUENCY
(L-C BPF TUNED FOR 940MHz RF FREQUENCY)
MAX2029 toc20
LO FREQUENCY (MHz)
LO LEAKAGE AT RF PORT (dBm)
P
LO
= -3dBm, 0dBm, +3dBm
-10
-20
-30
-40
-50
730 830780 880 930
LO LEAKAGE AT RF PORT vs. LO FREQUENCY
(L-C BPF TUNED FOR 940MHz RF FREQUENCY)
MAX2029 toc21
LO FREQUENCY (MHz)
LO LEAKAGE AT RF PORT (dBm)
V
CC
= 4.75V, 5.0V, 5.25V
-100
-90
-70
-80
-60
-50
IF LEAKAGE AT RF vs. LO FREQUENCY
(L-C BPF TUNED FOR 940MHz RF FREQUENCY)
MAX2029 toc22
LO FREQUENCY (MHz)
IF LEAKAGE AT RF (dBm)
730 830780 880 930
T
C
= +85°C
T
C
= +25°C
T
C
= -40°C
-100
-90
-70
-80
-60
-50
IF LEAKAGE AT RF vs. LO FREQUENCY
(L-C BPF TUNED FOR 940MHz RF FREQUENCY)
MAX2029 toc23
LO FREQUENCY (MHz)
IF LEAKAGE AT RF (dBm)
730 830780 880 930
P
LO
= -3dBm
P
LO
= 0dBm, +3dBm
-100
-90
-70
-80
-60
-50
IF LEAKAGE AT RF vs. LO FREQUENCY
(L-C BPF TUNED FOR 940MHz RF FREQUENCY)
MAX2029 toc24
LO FREQUENCY (MHz)
IF LEAKAGE AT RF (dBm)
730 830780 880 930
V
CC
= 5.25V
V
CC
= 4.75V, 5.0V
40
35
30
25
20
15
10
5
0
820 870 920 970 1020
RF PORT RETURN LOSS vs. RF FREQUENCY
(L-C BPF TUNED FOR 940MHz RF FREQUENCY)
MAX2029 toc25
RF FREQUENCY (MHz)
RF PORT RETURN LOSS (dB)
L1 AND C4 BPF INSTALLED
L1 AND C4 BPF REMOVED
THE L-C BPF ENHANCES PERFORMANCE
IN THE UPCONVERTER MODE BUT LIMITS
RF BANDWIDTH