W-CDMA/W-TDD/TD-SCDMA Zero-IF Receivers
MAX2400 Typical Operating Characteristics
(MAX2400 EV kit, V CC = 2.8V, HGML mode (see Table 6), f RF = 1960MHz, T A = +25°C, unless otherwise noted.)
40
35
30
SUPPLY CURRENT vs. SUPPLY VOLTAGE
HGML MODE
40
35
30
SUPPLY CURRENT vs. SUPPLY VOLTAGE
LG MODE
0
-5.0
LNA |S 11 | AND |S 22 |
vs. FREQUENCY
25
T A = -40 ° C T A = +25 ° C T A = +85 ° C
25
T A = -40 ° C T A = +25 ° C T A = +85 ° C
|S 22 |, LG
|S 11 |, LG
20
15
20
15
-10.0
10
5
IDLE
10
5
IDLE
-15.0
|S 22 |, HG
|S 11 |, HG
0
0
-20.0
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
1930
1940
1950
1960
1970
1980
1990
V CC (V)
LNA |S 21 | AND |S 12 |
vs. FREQUENCY
V CC (V)
LNA IN-BAND IIP3
vs. SUPPLY VOLTAGE
FREQUENCY (MHz)
LNA GAIN AND NF
vs. FREQUENCY HG MODE
20.0
MAX2400 toc72
-26
8.0
16
MAX2400 toc74
4.0
15.0
10.0
5.0
|S 21 |, HG
|S 12 |, LG
-28
-30
-32
6.0
4.0
2.0
LG
T A = -40 ° C
T A = +25 ° C
T A = +85 ° C
15
14
13
GAIN, -40 ° C
GAIN, +25 ° C
GAIN, +85 ° C
3.5
3.0
2.5
-34
0
0
-5.0
-10.0
|S 21 |, LG
|S 12 |, HG
-36
-38
-40
-2.0
-4.0
-6.0
HG
12
11
10
NF, +85 ° C
NF, +25 ° C
NF, -45 ° C
2.0
1.5
1.0
1930
1940
1950
1960
1970
1980
1990
2.7
2.8
2.9
3.0
3.1
3.2
3.3
1930
1940
1950
1960
1970
1980
1990
FREQUENCY (MHz)
VCO f OSC AND k VCO vs. V TUNE
V CC (V)
FREQUENCY (MHz)
DEMODULATOR |S 11 | vs. FREQUENCY
4100
4050
4000
3950
MAX2400 toc75
300
275
250
225
0
-2
-4
-6
-8
3900
3850
3800
3750
3700
200
175
150
125
100
-10
-12
-14
-16
-18
-20
LG
HGML
0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4
1930
1940
1950
1960
1970
1980
1990
V TUNE (V)
FREQUENCY (MHz)
______________________________________________________________________________________
17
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