Typical operating characteristics (continued) – Rainbow Electronics MAX19997A User Manual
Page 13

Typical Operating Characteristics (continued)
(
Typical Application Circuit, standard RF band (see Table 1), 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
______________________________________________________________________________________
13
LO PORT RETURN LOSS vs. LO FREQUENCY
(LO > RF, STANDARD RF BAND)
MAX19997A toc37
LO FREQUENCY (MHz)
LO PORT RETURN LOSS (dB)
3150
2900
2650
2400
2150
20
15
10
5
0
25
1900
3400
P
LO
= +3dBm
P
LO
= 0dBm
P
LO
= -3dBm
SUPPLY CURRENT vs. TEMPERATURE (T
C
)
(LO > RF, STANDARD RF BAND)
MAX19997A toc38
TEMPERATURE (
°C)
SUPPLY CURRENT (mA)
65
45
25
5
-15
360
370
380
390
400
350
-35
85
V
CC
= 5.25V
V
CC
= 5.0V
V
CC
= 4.75V
RF PORT RETURN LOSS vs. RF FREQUENCY
(LO > RF, STANDARD RF BAND)
MAX19997A toc34
RF PORT RETURN LOSS (dB)
25
20
15
10
5
0
30
RF FREQUENCY (MHz)
2800
2600
2400
2200
3000
P
LO
= -3dBm, 0dBm, +3dBm
f
IF
= 350MHz
IF PORT RETURN LOSS vs. IF FREQUENCY
(LO > RF, STANDARD RF BAND)
MAX19997A toc35
IF FREQUENCY (MHz)
IF PORT RETURN LOSS (dB)
410
320
230
140
25
20
15
10
5
0
30
50
500
V
CC
= 4.75V, 5.0V, 5.25V
f
LO
= 2600MHz
IF PORT RETURN LOSS vs. IF FREQUENCY
(LO > RF, STANDARD RF BAND)
MAX19997A toc36
IF FREQUENCY (MHz)
IF PORT RETURN LOSS (dB)
410
320
230
140
25
20
15
10
5
0
30
50
500
f
LO
= 2600MHz
f
LO
= 2950MHz
f
LO
= 2350MHz