W-CDMA/W-TDD/TD-SCDMA Zero-IF Receivers
MAX2391 Typical Operating Characteristics
(MAX2391 EV kit, V CC = 2.8V, HGML mode (see Table 6), f RF = 2140MHz, T A = +25°C, unless otherwise noted.)
SUPPLY CURRENT vs. SUPPLY VOLTAGE
SUPPLY CURRENT vs. SUPPLY VOLTAGE
40
35
HGML MODE
40
35
LG MODE
0
LNA |S 11 | AND |S 22 | vs. FREQUENCY
30
25
30
25
-5
-10
|S 11 |, HG
|S 11 |, LG
20
15
T A = -40 ° C
T A = +25 ° C
T A = +85 ° C
20
15
T A = -40 ° C
T A = +25 ° C
T A = +85 ° C
-15
10
10
5
IDLE
5
IDLE
-20
|S 22 |, HG
22 LG
|S 11 |, HG
0
0
-25
2.7
2.8
2.9
3.0
3.1
3.2
3.3
2.7
2.8
2.9
3.0
3.1
3.2
3.3
2110
2120
2130
2140
2150
2160
2170
V CC (V)
LNA |S 21 | AND |S 12 | vs. FREQUENCY
V CC (V)
FREQUENCY (MHz)
LNA IN-BAND IIP3 vs. SUPPLY VOLTAGE
20
15
10
|S 21 |, HG
MAX2391 toc18
-26
-28
-30
10
8
6
|S 12 |, LG
LG
5
0
-5
|S 12 |, HG
-32
-34
-36
4
2
0
T A = -40 ° C
HG
T A = +25 ° C T A = +85 ° C
-10
-15
|S 21 |, LG
-38
-40
-2
-4
2110
2120
2130
2140
2150
2160
2170
2.7
2.8
2.9
3.0
3.1
3.2
3.3
FREQUENCY (MHz)
LNA GAIN (HG MODE) AND NF vs. FREQUENCY
V CC (V)
VCO f OSC vs. V TUNE
18
17
16
15
14
13
12
MAX2391 toc20
4.0
3.5
3.0
2.5
2.0
1.5
1.0
4450
4400
4350
4300
4250
4200
4150
4100
4050
MAX2391 toc21
350
325
300
275
250
225
200
175
150
11
T A = -40°C
T A = +25°C
T A = +85°C
0.5
4000
125
10
0
3950
100
2110
2120
2130
2140
2150
2160
2170
0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4
FREQUENCY (MHz)
V TUNE (V)
10
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