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LTC5584 Datasheet, PDF (8/32 Pages) –
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LTC5584
Typical Performance Characteristics 450MHz application. VCC = 5V, EN = 5V, EDC = 0V,
REF = 0.5V, EIP2 = 0V, TC = 25°C, PLO = 6dBm, fLO = 440MHz, fRF1 = 450MHz, fRF2 = 451MHz, fBB = 10MHz, PRF1 = PRF2 = –5dBm, DC
Blocks and Mini-Circuits PSCJ-2-1 180° combiner at baseband outputs de-embedded from measurement unless otherwise noted. Test
circuit with RF and LO ports impedance matched as in Figure 1.
IIP3 and P1dB vs Temperature (TC)
50
I, –40°C
Q, –40°C
45
I, 25°C
I, 85°C
Q, 25°C
Q, 85°C
I, 105°C
Q, 105°C
40
35
IIP3
30
25
20
15
P1dB
10
200
300 400 500 600 700
LO FREQUENCY (MHz)
5584 G23
2-Tone IIP3 vs RF Power
50
TC = 25°C
Q
fRF1 = 450MHz
I
45 fRF2 = 451MHz
fLO = 440MHz
40
35
30
25
IIP3 and P1dB vs Supply Voltage
(VCC)
50
I, 4.75V
45
I, 5.0V
I, 5.25V
Q, 4.75V
Q, 5.0V
Q, 5.25V
TC = 25°C
40
35
IIP3
30
25
20
15
P1dB
10
200 300 400 500 600 700
LO FREQUENCY (MHz)
5584 G24
Uncalibrated IIP2 vs Temperature
(TC)
130
I, –40°C
Q, –40°C
I, 25°C
120
I, 85°C
Q, 25°C
Q, 85°C
I, 105°C
Q, 105°C
110
100
90
80
70
IIP3 vs LO Power
50
I, 0dBm
Q, 0dBm
45
I, 6dBm
I, 10dBm
Q, 6dBm
Q, 10dBm
40
TC = 25°C
35
30
25
20
15
10
200
300 400 500 600 700
LO FREQUENCY (MHz)
5584 G25
Uncalibrated IIP2 vs LO Power
130
I, 0dBm
Q, 0dBm
TC = 25°C
I, 6dBm
Q, 6dBm
120
I, 10dBm Q, 10dBm
110
100
90
80
70
20
–10 –8
–6 –4 –2 0
RF POWER (dBm)
24
5584 G26
IIP2 vs IP2I, IP2Q Trim Voltage
130
120
I, –40°C
I, 25°C
I, 85°C
Q, –40°C
Q, 25°C
fRF = 450MHz
EIP2 = 5V
Q, 85°C
I, 105°C
Q, 105°C
110
100
90
80
70
60
50
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
IP2I, IP2Q (V)
5584 G29
8
60
200
300 400 500 600 700
LO FREQUENCY (MHz)
5584 G27
IIP2 vs RF Tone Spacing
110
TC = 25°C
fRF1 = 450MHz
100 fLO = 440MHz
I (UNCALIBRATED)
I (NULLED AT 1MHz)
Q (UNCALIBRATED)
Q (NULLED AT 1MHz)
90
80
70
60
ZFSCJ-2-1
BB COMBINER
50
1
10
100
RF TONE SPACING (MHz)
1000
5584 G30
60
200
300 400 500 600 700
LO FREQUENCY (MHz)
5584 G28
2x2 Half-IF IIP2
vs RF to LO Tone Spacing
110
TC = 25°C
Q
fLO = 450MHz
I
100
90
80
70
60
ZFSCJ-2-1
BB COMBINER
50
1
10
100
RF TO LO SPACING (MHz)
1000
5584 G31
5584f
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