LT5526EUF Ver la hoja de datos (PDF) - Linear Technology
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LT5526EUF Datasheet PDF : 16 Pages
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LT5526
TYPICAL AC PERFOR A CE CHARACTERISTICS 900MHz Application. VCC = 5V, EN = 3V,
TA = 25°C, PRF = –15dB (–15dBm/tone for 2-tone IIP3 tests, ∆f = 1MHz), fLO = fRF – 140MHz, PLO = –5dBm, IF output measured at
140MHz, unless otherwise noted. Test circuit shown in Figure 1.
IFOUT, 2 × 2 and 3 × 3 Spurs
vs RF Input Power
2 × 2 and 3 × 3 Spurs
vs LO Input Power
10
0
IF OUT
–10 fRF = 900MHz
–20
–30
–40
3RF-3LO
fRF = 806.67MHz
–50
–60
–70 2RF-2LO
–80 fRF = 830MHz
–90
TA = 25°C
–100
fLO = 760MHz
fIF = 140MHz
–110
–20
–15
–10
–5
0
RF INPUT POWER (dBm)
–30
TA = 25°C
–40 fLO = 760MHz
fIF = 140MHz
–50 PRF = –15dBm
–60
–70
2RF-2LO
–80
fRF = 830MHz
–90
–100
3RF-3LO
fRF = 806.67MHz
–110
–16 –12 –8
–4
0
4
LO INPUT POWER (dBm)
5526 G10
5526 G11
1900MHz Application. VCC = 5V, EN = 3V, TA = 25°C, PRF = –15dB (–15dBm/tone for 2-tone IIP3 tests, ∆f = 1MHz),
fLO = fRF – 140MHz, PLO = –5dBm, IF output measured at 140MHz, unless otherwise noted. Test circuit shown in Figure 1.
Conversion Gain and IIP3
vs RF Frequency
20
IIP3
18
16
fLO = fRF – fIF
fIF = 140MHz
14
12
10
8
6
4
GAIN
2
25°C
85°C
–40°C
0
–2
1400
1600
1800
2000
RF FREQUENCY (MHz)
2200
Conversion Gain and IIP3
vs LO Input Power
20
fLO = 1760MHz
18 fIF = 140MHz
16
14
12
IIP3
10
8
6
4
GAIN
2
0
–2
–12 –10 –8 –6 –4 –2
LO INPUT POWER (dBm)
5526 G12
25°C
85°C
–40°C
02
5526 G15
SSB Noise Figure
vs RF Frequency
18
fLO = fRF – fIF
17 fIF = 140MHz
16
25°C
85°C
–40°C
15
14
13
12
11
10
1400
1600
1800
2000
RF FREQUENCY (MHz)
2200
SSB Noise Figure
vs LO Input Power
5526 G13
18
fLO = 1760MHz
17 fIF = 140MHz
16
25°C
85°C
–40°C
15
14
13
12
11
10
–12 –10
–8 –6 –4 –2
LO INPUT POWER (dBm)
02
5526 G16
IFOUT, 2 × 2 and 3 × 3 Spurs
vs RF Input Power
10
0
IF OUT
–10 fRF = 1900MHz
–20
–30
3RF-3LO
fRF = 1806.67MHz
–40
–50 2RF-2LO
–60 fRF = 1830MHz
–70
–80
–90
–100
–20
TA = 25°C
fLO = 1760MHz
fIF = 140MHz
–15
–10
–5
0
RF INPUT POWER (dBm)
LO-IF and LO-RF Leakage 5526 G14
vs LO Frequency
0
TA = 25°C
–10 fIF = 140MHz
–20
–30
LO-IF
–40
–50
LO-RF
–60
–70
–80
–90
–100
900 1100 1300 1500 1700 1900 2100 2300 2500
LO FREQUENCY (MHz)
5526 G17
5526f
5
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