Rainbow Electronics MAX19995А - Manual (Page 17)

MAX19995A
Dual, SiGe, High-Linearity, 1700MHz to 2200MHz
Downconversion Mixer with LO Buffer/Switch
______________________________________________________________________________________ 17
LO SELECTED RETURN LOSS
vs. LO FREQUENCY
MAX19995A toc8
7
LO FREQUENCY (MHz)
LO SELECTED RETURN LOSS (dB)
2350 2150 1950 2550
20
10
0
30
15
5
25
1750 2750
P LO = -3dBm, 0dBm, +3dBm
V CC = 3.3V
LO UNSELECTED RETURN LOSS
vs. LO FREQUENCY
MAX19995A toc8
8
LO FREQUENCY (MHz)
LO UNSELECTED RETURN LOSS (dB)
2350 2150 1950 2550
20
10
0
30
15
5
25
1750 2750
P LO = -3dBm, 0dBm, +3dBm
V
CC
= 3.3V
SUPPLY CURRENT vs. TEMPERATURE (T C )
MAX19995A toc8
9
TEMPERATURE ( ° C)
SUPPLY CURRENT (mA)
-15 65 25 45 5
200
220
240
260
280
180
-35 85
V CC = 3.3V
V CC = 3.0V
V CC = 3.6V
RF PORT RETURN LOSS
vs. RF FREQUENCY
MAX19995A toc8
5
RF FREQUENCY (MHz)
RF PORT RETURN LOSS (dB)
2000 1900 1800 2100
20
10
0
30
15
5
25
1700 2200
P LO = -3dBm, 0dBm, +3dBm
f
IF
= 350MHz
V CC = 3.3V
IF PORT RETURN LOSS
vs. IF FREQUENCY
MAX19995A toc86
IF FREQUENCY (MHz)
IF PORT RETURN LOSS (dB)
320 230 140 410
5
0
20
10
15
50 500
L = L1, L2, L4, L5 f
LO
= 2300MHz
V CC = 3.3V
L = 120nH
L = 470nH
L = 330nH
Typical Operating Characteristics (continued)
( Typical Application Circuit, R1 = R4 = 909Ω, R2 = R5 = 1kΩ, V CC = 3.3V, P RF = -5dBm, P LO = 0dBm, f RF = 1850MHz,
f LO = 2200MHz, f IF = 350MHz, T C = +25°C, unless otherwise noted.)