4
LT5526
5526f
WU
TYPICAL AC PERFOR A CE CHARACTERISTICS
900MHz Application. V
CC
= 5V, EN = 3V,
T
A
= 25°C, P
RF
= –15dB (–15dBm/tone for 2-tone IIP3 tests, ∆f = 1MHz), f
LO
= f
RF
– 140MHz, P
LO
= –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)
Conversion Gain and IIP3
vs LO Input Power
Conversion Gain and IIP3
vs Supply Voltage
SSB Noise Figure
vs LO Input Power
RF, LO and IF Port Return Loss
vs Frequency
Conversion Gain, IIP3 and SSB NF
vs Temperature
IF Output Power and IM3 vs RF
Input Power (Two Input Tones)
LO-IF and LO-RF Leakage
vs LO Input Frequency
RF FREQUENCY (MHz)
600
–2
GAIN AND NF (dB), IIP3 (dBm)
2
6
10
14
800 1000
5526 G01
1400
18
0
4
8
12
16
20
IIP3
GAIN
1200
SSB NF
T
A
= 25°C
f
IF
= 140MHz
RF FREQUENCY (MHz)
600
–2
GAIN AND NF (dB), IIP3 (dBm)
2
6
10
14
800 1000
5526 G02
1400
18
0
4
8
12
16
20
IIP3
GAIN
1200
SSB NF
T
A
= 25°C
f
IF
= 140MHz
TEMPERATURE (°C)
–50
GAIN AND NF (dB), IIP3 (dBm)
15
20
IIP3
25
10 50
5526 G03
10
5
–30 –10
30 70 90
0
–5
LOW SIDE LO
f
IF
= 140MHz
LOW SIDE LO
LOW AND HIGH SIDE LO
HIGH SIDE LO
HIGH SIDE LO
SSB NF
GAIN
Conversion Gain, IIP3 and SSB NF
vs RF Frequency (High Side LO)
LO INPUT POWER (dBm)
–12
GAIN (dB), IIP3 (dBm)
15
20
IIP3
GAIN
25
–6 –2
5526 G04
10
5
–10 –8
–4 0 2
0
–5
25°C
85°C
–40°C
f
LO
= 760MHz
f
IF
= 140MHz
LO INPUT POWER (dBm)
–12
NOISE FIGURE (dB)
15
–6
5526 G05
12
10
–10 –8 –4
9
8
16
14
13
11
–2 0 2
25°C
85°C
–40°C
f
LO
= 760MHz
f
IF
= 140MHz
LO FREQUENCY (MHz)
500
LEAKAGE (dBm)
–40
–20
0
1300
5526 G06
–60
–80
–50
–30
LO-RF
–10
–70
–90
–100
700
900
1100
1500
T
A
= 25°C
f
IF
= 140MHz
LO-IF
SUPPLY VOLTAGE (V)
2.8
GAIN (dB), IIP3 (dBm)
15
20
IIP3
GAIN
25
4.0 4.8
5526 G07
10
5
3.2 3.6
4.4 5.2 5.6
0
–5
25°C
85°C
–40°C
f
LO
= 760MHz
f
IF
= 140MHz
FREQUENCY (MHz)
0
–30
RETURN LOSS (dB)
–25
–20
–15
–10
–5
0
500 1000 1500 2000
5526 G08
RF PORT
LO PORT
IF PORT
RF INPUT POWER (dBm/TONE)
–20
–100
OUTPUT POWER (dBm/TONE)
–90
–70
–60
–50
0
–30
–15
–10
5526 G09
–80
–20
P
OUT
IM3
–10
–40
–5
0
25°C
85°C
–40°C
f
LO
= 760MHz
f
IF
= 140MHz