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.
Conversion Gain, IIP3 and SSB NF
vs RF Frequency (Low Side LO)
20
18
IIP3
16
TA = 25°C
fIF = 140MHz
14
12 SSB NF
10
8
6
4
2
GAIN
0
–2
600
800
1000
1200
RF FREQUENCY (MHz)
1400
5526 G01
Conversion Gain, IIP3 and SSB NF
vs RF Frequency (High Side LO)
20
18
IIP3
16
TA = 25°C
fIF = 140MHz
14
12 SSB NF
10
8
6
4
2
GAIN
0
–2
600
800
1000
1200
RF FREQUENCY (MHz)
1400
5526 G02
Conversion Gain, IIP3 and SSB NF
vs Temperature
25
fIF = 140MHz
20
IIP3
15
SSB NF
LOW SIDE LO
HIGH SIDE LO
HIGH SIDE LO
10
LOW SIDE LO
5
GAIN
0
LOW AND HIGH SIDE LO
–5
–50 –30
–10 10 30 50
TEMPERATURE (°C)
70 90
5526 G03
Conversion Gain and IIP3
vs LO Input Power
25
fLO = 760MHz
fIF = 140MHz
20
15
IIP3
10
5
GAIN
0
25°C
85°C
–40°C
–5
–12 –10
–8 –6 –4 –2
LO INPUT POWER (dBm)
02
5526 G04
SSB Noise Figure
vs LO Input Power
16
fLO = 760MHz
15 fIF = 140MHz
14
25°C
85°C
–40°C
13
12
11
10
9
8
–12 –10
–8 –6 –4 –2
LO INPUT POWER (dBm)
02
5526 G05
LO-IF and LO-RF Leakage
vs LO Input Frequency
0
TA = 25°C
–10 fIF = 140MHz
–20
–30
–40
LO-IF
–50
–60
LO-RF
–70
–80
–90
–100
500
700 900 1100 1300 1500
LO FREQUENCY (MHz)
5526 G06
Conversion Gain and IIP3
vs Supply Voltage
25
fLO = 760MHz
fIF = 140MHz
20
15
10
IIP3
5
GAIN
0
25°C
85°C
–40°C
–5
2.8 3.2
3.6 4.0 4.4 4.8
SUPPLY VOLTAGE (V)
5.2 5.6
5526 G07
RF, LO and IF Port Return Loss
vs Frequency
0
RF PORT
–5
–10
IF PORT
–15
–20
LO PORT
–25
–30
0
500
1000
1500
FREQUENCY (MHz)
2000
5526 G08
IF Output Power and IM3 vs RF
Input Power (Two Input Tones)
0
–10
–20
POUT
–30
–40
–50
–60
–70
IM3
–80
–90
–100
–20
–15
fLO = 760MHz
fIF = 140MHz
25°C
85°C
–40°C
–10
–5
0
RF INPUT POWER (dBm/TONE)
5526 G09
5526f
4
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