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LT5511 Datasheet PDF : 16 Pages
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LT5511
TYPICAL PERFOR A CE CHARACTERISTICS (950MHz Application)
VCC = 5VDC, EN = High , TA = 25°C, IF Input = 50MHz at –5dBm, LO Input = 1GHz at –10dBm, RF Output Measured at 950MHz, unless
otherwise noted. For 2-Tone Measurements: 2nd IF Input = 51MHz at –5dBm. (Test Circuit Shown in Figure 2).
RF Output Power and 3rd Order
Intermodulation vs IF Input Power
(Two Input Tones)
10
TA = 25°C
0
TA = –40°C
–10
TA = 85°C
–20
TA = 25°C
–30
POUT
IM3
–40
–50
TA = –40°C
TA = 85°C
–60
–70
–80
–15
–10
–5
0
5
IF INPUT POWER (dBm/TONE)
5511 G01
Conversion Gain and IIP3
vs LO Power
8
19
IIP3
TA = 25°C
6
17
TA = 85°C
4
TA = –40°C
15
2 GAIN
TA = –40°C
13
TA = 25°C
0
11
TA = 85°C
–2
–20
–15
–10
–5
LO POWER (dBm)
9
0
5511 G04
Conversion Gain and LO to RF
Leakage vs Output Frequency
2
–5
TA = –40°C
0
–15
GAIN
TA = 25°C
–2
TA = 85°C
– 25
TA = 85°C
–4
TA = –40°C –35
–6
LO LEAKAGE
–45
TA = 25°C
–8
IF = 50MHz, LO SWEPT FROM
400MHz TO 1300MHz AT –10dBm
–10
300 500 700 900 1100
–55
–65
1300
RF OUTPUT FREQUENCY (MHz)
5511 G07
4
RF Output Power and 2nd Order
Intermodulation vs IF Input Power
(Single Input Tone)
10
0 TA = 25°C
TA = –40°C
–10
–20
POUT
TA = 85°C
–30
–40
–50
–60
IM2
–70
TA = –40°C
TA = 85°C
TA = 25°C
–80
–15
–10
–5
0
IF INPUT POWER (dBm)
5
5511 G02
LO to RF Leakage vs LO Power
–5
–15
–25
–35
–45
–55
–20
TA = 85°C
TA = 25°C
TA = –40°C
–15
–10
–5
LO POWER (dBm)
0
5511 G05
IIP3 and IIP2
vs Output Frequency
60
IIP2
TA = 85°C
50
40 TA = –40°C
TA = 25°C
30
IIP3
20
TA = 85°C
TA = 25°C
10
TA = –40°C
IF = 50MHz, LO SWEPT FROM
400MHz TO 1300MHz AT –10dBm
0
300 500 700 900 1100
1300
RF OUTPUT FREQUENCY (MHz)
5511 G08
Conversion Gain vs IF Input
Power (Single Input Tone)
5
4
3
2
TA = –40°C
1
0
TA = 25°C
–1
TA = 85°C
–2
–3
–4
–5
–15
–10
–5
0
IF INPUT POWER (dBm)
5
5511 G03
IIP2 vs LO Power
60
TA = –40°C
50
TA = 25°C
40
TA = 85°C
30
20
10
0
–20
–15
–10
–5
LO POWER (dBm)
0
5511 G06
SSB Noise Figure vs
Output Frequency
20
TA = 25°C
18
16
14
12
IF = 50MHz, LO SWEPT FROM
400MHz TO 1300MHz AT –10dBm
10
300 500 700 900 1100
1300
RF OUTPUT FREQUENCY (MHz)
5511 G09
5511f
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