LT5575EUF Просмотр технического описания (PDF) - Linear Technology
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LT5575EUF Datasheet PDF : 16 Pages
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LT5575
TYPICAL AC PERFORMANCE CHARACTERISTICS VCC = 5V, EN = High, TA = 25ºC, PRF = –10dBm
(–10dBm/tone for 2-tone IIP2 and IIP3 tests), fBB = 1MHz (0.9MHz and 1.1MHz for 2-tone tests), PLO = 0dBm, unless otherwise noted.
Test Circuit Shown in Figure 1 (Notes 6, 7).
I/Q Gain Mismatch
vs LO Input Power
0.3
fBB = 1MHz
0.2
0.1
2500MHz
1900MHz
0.0 900MHz
– 0.1
– 0.2
– 0.3
–15
–10
–5
0
LO INPUT POWER (dBm)
5
5575 G19
I/Q Phase Mismatch
vs LO Input Power
3
fBB = 1MHz
2
900MHz
1900MHz
2500MHz
1
0
–1
–2
–3
–15
–10
–5
0
LO INPUT POWER (dBm)
5
5575 G20
RF Port Return Loss
0
–5
–10
–15
–20
–25
–30
800
LOW BAND;
C10 = 4.7pF
MID BAND;
C10 = 2pF
HIGH BAND;
NO EXTERNAL
COMPONENT
1100 1400 1700 2000 2300
FREQUENCY (MHz)
2600
5575 G22
IIP2 vs Supply Voltage
70
4.75V
5V
65
5.25V
60
55
50
45
40
800
1100 1400 1700 2000 2300 2600
RF FREQUENCY (MHz)
5575 G25
LO Port Return Loss
0
–5
–10
–15
–20
–25
800
LOW BAND; C12 = 3.9pF
MID BAND; C12 = 2.2pF
HIGH BAND;
NO EXTERNAL COMPONENT
1100 1400 1700 2000 2300 2600
FREQUENCY (MHz)
5575 G23
I/Q Gain Mismatch
vs Supply Voltage
0.3
4.75V
5V
0.2
5.25V
0.1
0.0
–0.1
–0.2
–0.3
800
1100 1400 1700 2000 2300 2600
RF FREQUENCY (MHz)
5575 G26
Large-Signal DSB NF
vs RF Input Power
30
NOTE 7
28
26
24
22
20
18
16 2500MHz
14
1900MHz
12
900MHz
10
–30 –25 –20 –15 –10 –5 0 5 10
RF INPUT POWER (dBm)
5575 G21
Conversion Gain, IIP3, NF
vs Supply Voltage
35
4.75V
5V
30
5.25V
25
IIP3
20
15
DSB NF
10
5
CONV. GAIN
0
800 1100 1400 1700 2000 2300 2600
RF FREQUENCY (MHz)
5575 G24
I/Q Phase Mismatch
vs Supply Voltage
3
4.75V
5V
2
5.25V
1
0
–1
–2
–3
800
1100 1400 1700 2000 2300 2600
RF FREQUENCY (MHz)
5575 G27
5575f
7
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