Rainbow Electronics MAX19995 - Manual (Page 23)

MAX19995
Dual, SiGe, High-Linearity, 1700MHz to 2200MHz
Downconversion Mixer with LO Buffer/Switch
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RF PORT RETURN LOSS
vs. RF FREQUENCY
MAX19995 toc126
RF FREQUENCY (MHz)
RF PORT RETURN LOSS (dB)
2300 1900 2100
30
40
20
10
0
50
1700 2500
P LO = -3dBm, 0dBm, +3dBm
f IF = 190MHz
V CC = 3.3V
IF PORT RETURN LOSS
vs. IF FREQUENCY
MAX19995 toc86
IF FREQUENCY (MHz)
IF PORT RETURN LOSS (dB)
410 140 230 320
15
10
5
0
20
50 500
f LO = 1610MHz
V CC = 3.0V, 3.3V, 3.6V
LO SELECTED RETURN LOSS
vs. LO FREQUENCY
MAX19995 toc128
LO FREQUENCY (MHz)
LO SELECTED RETURN LOSS (dB)
2200 1600 1800 2000
15
10
5
0
30
25
20
1400 2400
P LO = -3dBm
P LO = 0dBm
P LO = +3dBm
V CC = 3.3V
Typical Operating Characteristics (continued)
( Typical Application Circuit, R1 = R4 = 909
Ω, R2 = R5 = 2.49kΩ, V
CC = +3.3V, P LO = 0dBm, P RF = -5dBm, LO is low-side injected
for a 190MHz IF, T C = +25°C, unless otherwise noted.)
LO UNSELECTED RETURN LOSS
vs. LO FREQUENCY
MAX19995 toc129
LO FREQUENCY (MHz)
LO UN SELECTED RETURN LOSS (dB)
2200 2400 1600 1800 2000
15
10
5
0
30
25
20
1400
P LO = -3dBm, 0dBm, +3dBm
V CC = 3.3V
SUPPLY CURRENT
vs. TEMPERATURE (T C )
MAX19995 toc130
TEMPERATURE ( ° C)
SUPPLY CURRENT (mA)
65 85 -15 5 25 45
220
240
260
180
200
-35
V CC = 3.3V
V
CC
= 3.0V
V CC = 3.6V