LT5546(RevA) Ver la hoja de datos (PDF) - Linear Technology
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LT5546
(Rev.:RevA)
(Rev.:RevA)
Linear Technology
LT5546 Datasheet PDF : 12 Pages
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LT5546
TYPICAL PERFOR A CE CHARACTERISTICS VCC = 3V, f2×LO = 570MHz, P2×LO = –5dBm
(Note 5), fIF = 284MHz, PIF = –30dBm, I and Q outputs 800mVP-P into 4kΩ differential load, TA = 25°C, EN = VCC, STBY = VCC,
unless otherwise noted. (Note 3)
Total Harmonic Distortion
vs IF Input Power at 3V Supply
and 800mVP-P Differential Out
–25
fIF,1 = 280MHz
–30
fIF,2 = 280.1MHz
f2xLO = 570MHz
–35
–40
25°C
–45
–40°C
–50
85°C
–55
–60
–60
–50 –40 –30 –20 –10
IF INPUT POWER EACH TONE (dBm)
5546 G07
Total Harmonic Distortion vs IF
Input Power and Supply Voltage
–25
800mVP-P DIFFERENTIAL OUT
–30
fIF,1 = 280MHz
fIF,2 = 280.1MHz
f2xLO = 570MHz
–35
–40
3V
–45
–50
1.8V 5.25V
–55
–60
–60 –50 –40 –30 –20 –10
IF INPUT POWER EACH TONE (dBm)
LPF Frequency Response 5546 G10
vs Baseband Frequency and
Supply Voltage
0
TA = 25°C
–1
–2
1.8V
–3
–4
–5
3V
–6
–7
–8
–9
5.25V
–10
0 5 10 15 20 25 30 35 40 45 50 55
BASEBAND FREQUENCY (MHz)
5546 G13
Total Harmonic Distortion
vs IF Input Power and IF
Frequency
–25
800mVP-P DIFFERENTIAL OUT
–30 3V SUPPLY
–35
–40
–45
–50
–55
–60
–60
fIF = 40MHz
fIF = 280MHz
fIF = 500MHz
–50 –40 –30 –20 –10
IF INPUT POWER EACH TONE (dBm)
5546 G08
Total Harmonic Distortion
vs IF Input Power at 500mVP-P
Differential Out
–20
fIF,1 = 280MHz
–25 fIF,2 = 280.1MHz
–30
f2xLO = 570MHz
VCC = 3V
–35
–40°C
–40
–45
–50
25°C
85°C
–55
–60
–65
–40
–35
–30
–25
–20
IF INPUT POWER EACH TONE (dBm)
5546 G11
IF Detector Output Voltage vs
IF Input CW Power at 3V Supply
1.4
fIF = 280MHz
1.2
1.0
85°C
0.8
25°C
0.6
0.4
–40°C
0.2
–40
–30 –20 –10
0
10
IF INPUT CW POWER (dBm)
5546 G14
Total Harmonic Distortion
vs IF Input Power at 1.8V Supply
and 800mVP-P Differential Out
–25
fIF,1 = 280MHz
–30
fIF,2 = 280.1MHz
f2xLO = 570MHz
25°C
–35
–40°C 85°C
–40
–45
–50
–55
–60
–60 –50 –40 –30 –20 –10
IF INPUT POWER EACH TONE (dBm)
5546 G09
LPF Frequency Response
vs Baseband Frequency
and Temperature
0
VCC = 3V
–1
–2
–40°C
–3
–4
–5
25°C
–6
–7
–8
–9
85°C
–10
0 5 10 15 20 25 30 35 40 45 50 55
BASEBAND FREQUENCY (MHz)
5546 G12
IF Detector Output Voltage vs
IF Input CW Power at 1.8V Supply
1.4
fIF = 280MHz
1.2
1.0
0.8
25°C
0.6
85°C
0.4
–40°C
0.2
–40 –30 –20 –10
0
10
IF INPUT CW POWER (dBm)
5546 G15
5546fa
5
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