LT5511 查看數據表（PDF） - Linear Technology
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LT5511 Datasheet PDF : 16 Pages
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LT5511
TYPICAL PERFOR A CE CHARACTERISTICS (1.9GHz Application)
VCC = 5VDC, EN = High , TA = 25 ºC, IF Input = 50MHz at –5dBm, LO Input = 1.95GHz at –10dBm. RF Output Measured at 1900MHz,
unless otherwise noted. For 2-Tone Measurements: 2nd IF Input = 51MHz at –5dBm. (Test Circuit Shown in Figure 3).
Conversion Gain and IIP3
vs LO Input Power
6
17
IIP3
TA = 85°C
4
TA = 25°C
15
2
TA = –40°C
13
GAIN
TA = –40°C
0
11
TA = 25°C
–2
TA = 85°C
9
–4
–25
7
–20 –15 –10 –5
0
LO INPUT POWER (dBm)
5511 G16
Conversion Gain and LO to RF
Leakage vs RF Output Frequency
2
–5
GAIN
TA = –40°C
0
TA = 25°C
–15
TA = 85°C
–2
– 25
–4
LO LEAKAGE
TA = 85°C
–35
TA = 25°C
–6
TA = –40°C –45
IF = 50MHz, LO SWEPT
–8 FROM 1600MHz TO 2350MHz
1500
1700
1900
2100
–55
2300
RF OUTPUT FREQUENCY (MHz)
5511 G19
LO and RF Port Return Loss
vs Frequency
0
–5
LO PORT
–10
RF PORT
–15
–20
–25
–30
1500
1700
1900
2100
FREQUENCY(MHz)
2300
5511 G22
6
LO to RF Leakage
vs LO Input Power
5
–5
–15
–25
TA = –40°C
–35
TA = 85°C
–45
–55
–25
TA = 25°C
–20 –15 –10 –5
0
LO INPUT POWER (dBm)
5511 G17
IIP3 and IIP2 vs Output Frequency
60
IIP2
50
TA = 85°C
TA = 25°C
40
TA = –40°C
30
IIP3
20
TA = 85°C
TA = 25°C
10
TA = –40°C
IF = 50MHz, LO SWEPT
FROM 1600MHz TO 2350MHz
0
1500
1700
1900
2100
2300
RF OUTPUT FREQUENCY (MHz)
5511 G20
IIP2 vs LO Input Power
60
50
TA = 25°C
40
TA = –40°C
TA = 85°C
30
20
10
0
–25
–20 –15 –10 –5
0
LO INPUT POWER (dBm)
5511 G18
SSB Noise Figure
vs Output Frequency
20
TA = 25°C
18
16
14
12
IF = 50MHz, LO SWEPT
FROM 1600MHz TO 2350MHz
10
1500
1700
1900
2100
2300
RF OUTPUT FREQUENCY (MHz)
5511 G21
Conversion Gain
vs Supply Voltage
4
2
TA = –40°C
0
TA = 25°C
TA = 85°C
–2
–4
IIP3 and IIP2 vs Supply Voltage
30
60
IIP2
25
TA = 25°C
TA = –40°C
50
20
IIP3
15 TA = 25°C
10
TA = 85°C
40
TA = 85°C
30
TA = –40°C
20
–6
4.0 4.2 4.4 4.6 4.8 5.0 5.2 5.4 5.6
SUPPLY VOLTAGE (V)
5511 G23
5
10
4.0 4.2 4.4 4.6 4.8 5.0 5.2 5.4 5.6
SUPPLY VOLTAGE (V)
5511 G24
5511f
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