W-CDMA/W-TDD/TD-SCDMA Zero-IF Receivers
MAX2401 Typical Operating Characteristics
(MAX2401 EV kit, V CC = 2.8V, HGML mode (see Table 6), f RF = 1842.4MHz, 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
-9
-10
LNA |S 11 | AND |S 22 | vs. FREQUENCY
30
25
20
T A = -40 ° C
T A = +25 ° C
T A = +85 ° C
30
25
20
T A = -40 ° C
T A = +25 ° C
T A = +85 ° C
-11
|S 22 |, LG
|S 22 |, HG
15
15
-12
|S 11 |, HG
10
5
IDLE
10
5
IDLE
-13
|S 11 |, LG
0
0
-14
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
1805
1820
1835
1850
1865
1880
V CC (V)
V CC (V)
FREQUENCY (MHz)
20
LNA |S 21 | AND |S 12 | vs. FREQUENCY
MAX2401 toc85
-34
8
LNA IN-BAND IIP3 vs. SUPPLY VOLTAGE
15
6
10
|S 21 |, HG
-36
4
LG
5
|S 12 |, LG
-38
2
T A = -40 ° C
T A = +25 ° C T A = +85 ° C
0
-40
0
-5
|S 12 |, HG
-42
-2
HG
-10
|S 21 |, LG
-4
-15
-44
-6
1805
1820
1835
1850
1865
1880
2.7
2.8
2.9
3.0
3.1
3.2
3.3
FREQUENCY (MHz)
V CC (V)
17
16
15
14
LNA GAIN AND NF vs. FREQUENCY
MAX2401 toc87
GAIN, T A = -40°C
GAIN, T A = +25°C
GAIN, T A = +85°C
4.5
4.0
3.5
3.0
3810
3780
3750
3720
VCO f OSC AND k VCO vs. V TUNE
MAX2401 toc88
210
190
170
150
3690
130
13
12
11
10
NF, T A = +85°C
NF, T A = +25°C
NF, T A = -45°C
2.5
2.0
1.5
1.0
3660
3630
3600
3570
110
90
70
50
1805
1820
1835
1850
1865
1880
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)
______________________________________________________________________________________
19
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