Rainbow Electronics MAX2327 - Manual (Page 12)

MAX2320/21/22/24/26/27
Adjustable, High-Linearity,
SiGe Dual-Band LNA/Mixer ICs
12 ______________________________________________________________________________________
0
4
2
8
6
12
10
14
-17 -7 -2 -12 3
PCS-BAND HGHL MIXER NOISE
FIGURE vs. LO INPUT LEVEL
MAX2320 toc46
LO INPUT LEVEL (dBm)
NOISE FIGURE (dB)
HIGH SIDE LO
LOW SIDE LO
0
4
2
8
6
12
10
14
-17 -7 -2 -12 3
PCS-BAND HGLL MIXER NOISE
FIGURE vs. LO INPUT LEVEL
MAX2320 toc47
LO INPUT LEVEL (dBm)
NOISE FIGURE (dB)
HIGH SIDE LO
LOW SIDE LO
-25
-20
-10
-15
-5
0
CELLULAR-BAND LO BUFFER
OUTPUT LEVEL vs. INPUT LEVEL
MAX2320 toc48
LO INPUT LEVEL (dBm)
OUTPUT LEVEL (dBm)
-20 0 -10 10
T A = -45 °C TO +85°C HIGH SIDE
AND LOW SIDE LO
Typical Operating Characteristics (continued)
(MAX232_ EV kit, V CC = +2.75V, f LNAINH = f MIXINH = 1960MHz, f LNAINL = f MIXINL = 881MHz, f LOHIN = 1750MHz, f LOLIN = 1091MHz
(digital modes), f LOLIN = 991MHz (FM mode), LO input power = -7dBm, 50 Ω system, all measurements include matching component
losses but not connector and trace losses, T A = +25°C, unless otherwise noted.)
-70
-50
-60
-30
-40
-10
-20
0
-20 -10 0 10
CELLULAR-BAND 2ND AND 3RD
HARMONICS vs. LO INPUT POWER
MAX2320 toc49
LO INPUT LEVEL (dB)
HARMONIC POWER (dBm)
2ND HARMONIC
3RD HARMONIC
f LO = 1091MHz
-25
-20
-10
-15
-5
0
PCS-BAND LO BUFFER
OUTPUT LEVEL vs. INPUT LEVEL
MAX2320 toc50
LO INPUT LEVEL (dBm)
OUTPUT LEVEL (dBm)
-20 0 -10 10
T A = -45 °C TO +85°C
HIGH SIDE AND LOW
SIDE LO
-70
-50
-60
-30
-40
-10
-20
0
-20 -10 0 10
PCS-BAND 2ND AND 3RD HARMONICS
LO BUFFER OUTPUT vs. INPUT LEVEL
MAX2320 toc51
LO INPUT LEVEL (dB)
HARMONIC POWER (dBm)
2ND HARMONIC
3RD HARMONIC
f LO = 1750MHz
-75
-69
-71
-73
-67
-65
-63
-61
-59
-57
-55
80 90 100 110 120
PCS-BAND MIXER
2 x 2 SPURIOUS REJECTION
MAX2320toc52
IF OUTPUT FREQUENCY (MHz)
2 x 2 SPURIOUS OUTPUT (dBc)
HGLL, WITHOUT LO DOUBLER
HGHL, WITHOUT LO DOUBLER