Rainbow Electronics MAX19997A - Manual (Page 18)

Typical Operating Characteristics (continued)
( Typical Application Circuit, extended RF band (see Table 2), V CC = +5.0V, LO is high-side injected for a 350MHz IF, P LO = 0dBm,
P RF = -5dBm, T C = +25°C, unless otherwise noted.)
MAX19997A
Dual, SiGe High-Linearity, 1800MHz to 2900MHz
Downconversion Mixer with LO Buffer
18 ______________________________________________________________________________________
RF PORT RETURN LOSS vs. RF FREQUENCY
(LO > RF, EXTENDED RF BAND)
MAX19997A toc72
RF PORT RETURN LOSS (dB)
2200 2100 2000 1900
15
10
25
20
5
0
30
1800 2300
RF FREQUENCY (MHz)
P LO = -3dBm, 0dBm, +3dBm
f IF = 350MHz
IF PORT RETURN LOSS vs. IF FREQUENCY
(LO > RF, EXTENDED RF BAND)
MAX19997A toc73
IF PORT RETURN LOSS (dB)
410 320 230 140
15
10
25
20
5
0
30
50 500
IF FREQUENCY (MHz)
f LO = 2600MHz
V CC = 4.75V, 5.0V, 5.25V
IF PORT RETURN LOSS vs. IF FREQUENCY
(LO > RF, EXTENDED RF BAND)
MAX19997A toc74
IF PORT RETURN LOSS (dB)
410 320 230 140
15
10
25
20
5
0
30
50 500
IF FREQUENCY (MHz)
f LO = 2600MHz
f LO = 2950MHz
f LO = 2350MHz
LO PORT RETURN LOSS vs. LO FREQUENCY
(LO > RF, EXTENDED RF BAND)
MAX19997A toc75
LO PORT RETURN LOSS (dB)
2900 3150 2650 2400 2150
10
20
15
5
0
25
1900 3400
LO FREQUENCY (MHz)
P LO = -3dBm P LO = 0dBm
P LO = +3dBm
SUPPLY CURRENT vs. TEMPERATURE (T C )
(LO > RF, EXTENDED RF BAND)
MAX19997A toc76
SUPPLY CURRENT (mA)
45 65 25 5 -15
380
360
370
390
400
350
-35 85
TEMPERATURE ( °C)
V CC = 4.75V
V CC = 5.0V
V CC = 5.25V