Owner's manual

MAX2651/MAX2652/MAX2653
GSM900 and DCS1800/PCS1900
Dual-Band, Low-Noise Amplifiers
_______________________________________________________________________________________ 9
Typical Operating Characteristics (continued)
(MAX2651 EV kit, V
CC
= +3.0V, input and output matched with recommended matching networks, T
A
= +25°C, unless otherwise noted.)
HIGH GAIN
LOW GAIN
f = 1840MHz
P
IN
(dBm)
11
9
-8
-10
13
-6
15
-4
17
-2
19
0
-25 -20 -15 -10 -5 0
POWER GAIN vs. INPUT POWER
MA\X2651-08
POWER GAIN (dB)
LOW GAIN (dB)
-20
-10
0
10
20
1800 1840 1880 1920 1960 2000
POWER GAIN vs. FREQUENCY
MA\X2651-09
FREQUENCY (MHz)

S
21

2
(dB)
HIGH GAIN
LOW GAIN
HIGH GAIN
LOW GAIN
1800 1840 1880 1920 1960 2000
INPUT RETURN LOSS
vs. FREQUENCY
MA\X2651-10
FREQUENCY (MHz)

S
11

2
(dB)
-20
-10
0
1800 1840 1880 1920 1960 2000
OUTPUT RETURN LOSS
vs. FREQUENCY
MA\X2651-11
FREQUENCY (MHz)

S
22

2
(dB)
-20
-10
0
HIGH GAIN
LOW GAIN
1800 1840 1880 1920 1960 2000
REVERSE ISOLATION vs. FREQUENCY
MA\X2651-12
FREQUENCY (MHz)

S
12

2
(dB)
HIGH GAIN
LOW GAIN
-40
-30
-20
-10
0
4
5
6
7
8
SUPPLY CURRENT vs. V
CC
HIGH GAIN
MAX2651-13
V
CC
(V)
I
CC
(mA)
2.7 3.02.8 2.9 3.1 3.2 3.3
NO INPUT SIGNAL
T
A
= +85°C
T
A
= -40°C
T
A
= +25°C
1.0
1.5
2.0
2.5
3.0
SUPPLY CURRENT vs. V
CC
LOW GAIN
MAX2651-14
V
CC
(V)
I
CC
(mA)
2.7 3.02.8 2.9 3.1 3.2 3.3
NO INPUT SIGNAL
T
A
= +25°C
T
A
= -40°C
T
A
= +85°C
MAX2651 (DCS Band)