Rainbow Electronics MAX19995 - Manual (Page 18)

MAX19995
Dual, SiGe, High-Linearity, 1700MHz to 2200MHz
Downconversion Mixer with LO Buffer/Switch
18 ______________________________________________________________________________________
Typical Operating Characteristics (continued)
( Typical Application Circuit, optimized for the UMTS band, R1 = R4 = 681
Ω, R2 = R5 = 1.5kΩ, V
CC = +5.0V, P LO = 0dBm,
P RF = -5dBm, LO is low-side injected for a 190MHz IF, T C = +25°C, unless otherwise noted.)
RF PORT RETURN LOSS
vs. RF FREQUENCY
MAX19995 toc85
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
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 = 4.75V, 5.0V, 5.25V
LO SELECTED RETURN LOSS
vs. LO FREQUENCY
MAX19995 toc87
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
LO UNSELECTED RETURN LOSS
vs. LO FREQUENCY
MAX19995 toc88
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
SUPPLY CURRENT
vs. TEMPERATURE (T C )
MAX19995 toc89
TEMPERATURE ( ° C)
SUPPLY CURRENT (mA)
65 85 -15 5 25 45
360
380
400
320
340
-35
V
CC
= 5.25V
V CC = 4.75V
V CC = 5.0V