LT5502 Ver la hoja de datos (PDF) - Linear Technology
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LT5502 Datasheet PDF : 12 Pages
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LT5502
TYPICAL PERFOR A CE CHARACTERISTICS (Note 3)
I/Q Output Swing vs IF Input Power
1200
VCC = 3V
TA = 25°C
1000
fIF = 70MHz
800
600
fIF = 400MHz
400
fIF = 280MHz
200
–85
–70 –55 –40 –25 –10 5
IF INPUT POWER (dBm)
5502 G04
RSSI Output Voltage vs VCC
1.2
fIF = 280MHz
TA = 25°C
1.0
0.8
0.6
VCC = 5.5V
0.4
VCC = 1.8V
VCC = 3V
RSSI Output vs Temperature
1.2
VCC = 3V
fIF = 280MHz
1.0
0.8
0.6
TA = –40°C
0.4
TA = 85°C
TA = 25°C
0.2
–85
–70 –55 –40 –25 –10 5
IF INPUT POWER (dBm)
5502 G05
IF Input Sensitivity
vs Temperature
–73
fIF = 280MHz
–75
–77
TA = 25°C
–79
–81
TA = 85°C
TA = –40°C
RSSI Output Voltage vs IF Frequency
1.2
VCC = 3V
TA = 25°C
1.0
fIF = 280MHz
0.8
fIF = 70MHz
0.6
0.4
fIF = 400MHz
0.2
–85
–70 –55 –40 –25 –10 5
IF INPUT POWER (dBm)
5502 G06
IF Input Sensitivity vs IF Frequency
–73
VCC = 3V
–76
TA = 85°C
–79
TA = 25°C
TA = –40°C
–82
0.2
–85
–70 –55 –40 –25 –10 5
IF INPUT POWER (dBm)
5502 G07
LPF Frequency Response
vs Baseband Frequency
5
VCC = 3V
0
TA = 85°C
–5
–10
TA = 25°C
–15
–20
TA = –40°C
–25
–30
–35
0
4
8
12
16
20
BASEBAND FREQUENCY (MHz)
5502 G10
–83
1.8
2.5
3.5
4.5
SUPPLY VOLTAGE (V)
5.5
5502 G08
– 85
70 100
150 200 250 300
IF FREQUENCY (MHz)
350 400
5502 G09
LPF Group Delay
vs Baseband Frequency
110
VCC = 3V
TA = –40°C
95
TA = 85°C
80
65
50
TA = 25°C
35
20
0
4
8
12
16
20
BASEBAND FREQUENCY (MHz)
5502 G11
LPF Frequency Response vs VCC
5
110
VCC = 1.8V, 3V, 5.5V
0
TA = 25°C
–5
90
–10
–15
70
–20
–25
50
–30
–35
0
30
4
8
12
16
20
BASEBAND FREQUENCY (MHz)
5502 G12
4
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