LTC5540IUH View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
'LTC5540IUH' PDF : 16 Pages View PDF
LTC5540
Typical AC Performance Characteristics High-Side LO
VCC = 3.3V, VCCIF = 3.3V, SHDN = Low, TA = 25°C, PLO = 0dBm, PRF = –3dBm (–3dBm/tone for two-tone IIP3 tests, ∆f = 2MHz),
IF = 190MHz, unless otherwise noted. Test circuit shown in Figure 1.
Conversion Gain, IIP3 and NF
vs RF Frequency
LO Leakage vs LO Frequency
RF Isolation vs RF Frequency
28
22
–10
65
26
IIP3
24
22
20
18
16
14
12
10
8 GC
20
18
85°C 16
25°C
– 40°C
14
12
10
NF
8
6
4
2
–20
–30
LO-RF
–40
LO-IF
–50
60
55
RF-LO
50
45
40
RF-IF
35
30
6
0
600 700 800 900 1000 1100
RF FREQUENCY (MHz)
–60
700
800 900 1000 1100 1200
LO FREQUENCY (MHz)
25
600 700 800 900 1000 1100 1200 1300
RF FREQUENCY (MHz)
5540 G04
5540 G05
5540 G06
700MHz Conversion Gain, IIP3
and NF vs LO Input Power
28
22
26
24
IIP3
22
20
20
18
85°C
25°C
16
–40°C 14
18
12
16
10
14
NF
8
12
6
10 GC
4
8
2
6
0
–6 –4 –2 0
2
4
6
LO INPUT POWER (dBm)
5540 G07
900MHz Conversion Gain, IIP3
and NF vs LO Input Power
28
22
26
20
24
IIP3
22
20
18
85°C
25°C
16
–40°C 14
18
12
16
10
14
NF
8
12
6
10 GC
4
8
2
6
0
–6 –4 –2 0
2
4
6
LO INPUT POWER (dBm)
5540 G08
1100MHz Conversion Gain, IIP3
and NF vs LO Input Power
28
22
26
IIP3
20
24
18
22
16
20
14
18
12
16
10
14
12
10 GC
8
85°C NF
8
25°C
6
– 40°C
4
2
6
0
–6 –4 –2 0
2
4
6
LO INPUT POWER (dBm)
5540 G09
Conversion Gain, IIP3 and NF
vs Supply Voltage (Single Supply)
28
22
26
20
24
IIP3
22
RF = 900MHz
20 VCC = VCCIF
18
18
85°C
25°C
16
–40°C 14
12
16
10
14
NF
8
12
6
10 GC
4
8
2
6
0
3.0 3.1 3.2 3.3 3.4 3.5 3.6
VCC, VCCIF SUPPLY VOLTAGE (V)
5540 G10
Conversion Gain, IIP3 and NF
vs IF Supply Voltage (Dual Supply)
28
22
26
20
24
IIP3
22
RF = 900MHz
20 VCC = 3.3V
18
18
85°C
25°C
16
–40°C 14
12
16
10
14
NF
8
12
6
10 GC
4
8
2
6
0
3.0 3.5
4
4.5
5
5.5
VCCIF SUPPLY VOLTAGE (V)
5540 G11
900MHz Conversion Gain, IIP3
and RF Input P1dB vs Temperature
28
26
24
IIP3
22
20
RF = 900MHz
VCCIF = 5.0V
VCCIF = 3.3V
18
16
14
P1dB
12
10
8 GC
6
–45 –25 –5 15 35 55 75 95
TEMPERATURE (°C)
5540 G12
5540f
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