lt5575 Linear Technology Corporation, lt5575 Datasheet - Page 5

• Manufacturer Part Number: lt5575
• Description: 800mhz To 2.7ghz High Linearity Direct Conversion Quadrature Demodulator
• Manufacturer: Linear Technology Corporation

TYPICAL AC PERFORMANCE CHARACTERISTICS
(–10dBm/tone for 2-tone IIP2 and IIP3 tests), f
Test Circuit Shown in Figure 1 (Note 6).
70
65
45
40
35
30
25
20
15
10
60
55
50
–1
5
0
5
4
3
2
1
0
800
–16
–15
Conversion Gain, NF and IIP3
vs Frequency
Conversion Gain
vs RF Input Power
RF-LO Isolation
vs RF Input Power
LOW
BAND
1100 1400 1700
–12
–10
BAND
RF INPUT FREQUENCY (MHz)
MID
RF INPUT POWER (dBm)
RF INPUT POWER (dBm)
–8
–5
CONV GAIN
DSB NF
1900MHz
1900MHz
2500MHz
2500MHz
900MHz
900MHz
IIP3
–4
0
HIGH BAND
2000
0
5
2300
10
4
–40°C
25°C
85°C
5575 G01
2600
5575 G07
5575 G04
15
8
BB
= 1MHz (0.9MHz and 1.1MHz for 2-tone tests), P
–0.1
–0.2
–0.3
– 40
– 45
–50
– 60
–65
– 80
–55
–70
–75
0.3
0.2
0.1
0.0
70
65
60
55
50
45
40
800
800
–15
IIP2 vs Frequency
I/Q Gain Mismatch
vs RF Input Frequency
LO-RF Leakage
vs LO Input Power
f
BB
1100 1400 1700 2000 2300 2600
1100 1400 1700 2000
= 1MHz
–40°C
25°C
85°C
RF INPUT FREQUENCY (MHz)
–10
LO INPUT POWER (dBm)
RF FREQUENCY (MHz)
2500MHz
1900MHz
900MHz
–5
2300 2600
0
–40°C
25°C
85°C
5575 G02
5575 G05
5575 G08
5
V
CC
= 5V, EN = High, T
160
150
140
130
120
110
100
3
2
2
3
6
5
4
3
2
1
0
1
0
1
LO
800
4.50
0.1
Supply Current
vs Supply Voltage
I/Q Phase Mismatch
vs RF Input Frequency
Conversion Gain
vs Baseband Frequency
f
f
= 0dBm, unless otherwise noted.
BB
LO
1100 1400 1700 2000
= 1901MHz
= 1MHz
BASEBAND FREQUENCY (MHz)
4.75
1.0
RF FREQUENCY (MHz)
SUPPLY VOLTAGE (V)
A
= 25ºC, P
– 40°C
– 40°C
85°C
25°C
25°C
85°C
5.00
10
LT5575
RF
2300 2600
5.25
100
= –10dBm
–40°C
25°C
85°C
5575 G03
5575 G06
5575 G09
5
5575f
1000
5.50