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LTC6948 Datasheet(PDF) 9 Page - Analog Devices

Part # LTC6948
Description  300MHz to 9GHz High Linearity I/Q Demodulator with Wideband IF Amplifier
PDF  32 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

LTC6948 Datasheet(HTML) 9 Page - Analog Devices

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LTC5594
9
Rev A
For more information www.analog.com
TYPICAL PERFORMANCE CHARACTERISTICS V
CC = 5V, EN = 3.3V, TC = 25°C, PLO = 6dBm,
HSLO, RF tone spacing = 4MHz, fIF = 30MHz, PIF = –1.5dBm per tone, and register defaults. DC Blocks, 50Ω terminations, and
MACOM H9 180° combiner at amplifier outputs de-embedded from measurement unless otherwise noted. Test circuit shown in
Figure 1 with 1GHz interstage filter.
0
1
2
3
4
5
6
7
8
9 10
45
40
35
30
25
20
15
10
RF FREQUENCY (GHz)
I, 0
I, 1
I, 2
I, 3
I, 4
I, 5
I, 6
I, 7
Q, 0
Q, 1
Q, 2
Q, 3
Q, 4
Q, 5
Q, 6
Q, 7
5594 G19
0
1
2
3
4
5
6
7
8
9 10
90
80
70
60
50
40
30
20
10
0
RF FREQUENCY (GHz)
I, –40°C
I, 25°C
I, 85°C
I, 105°C
Q, –40°C
Q, 25°C
Q, 85°C
Q, 105°C
5594 G20
0
1
2
3
4
5
6
7
8
9 10
90
80
70
60
50
40
30
20
10
0
–10
RF FREQUENCY (GHz)
I, –6dBm
I, 0dBm
I, 6dBm
I, 12dBm
Q, –6dBm
Q, 0dBm
Q, 6dBm
Q, 12dBm
5594 G21
0
32
64
96 128 160 192 224 256
100
90
80
70
60
50
40
30
20
10
0
REGISTER VALUE (INTEGER)
IM2IX, –40°C
IM2IX, 25°C
IM2IX, 85°C
IM2IX, 105°C
I-CHANNEL
fRF = 5800MHz
5594 G23
0
32
64
96 128 160 192 224 256
100
90
80
70
60
50
40
30
20
10
0
REGISTER VALUE (INTEGER)
IM2QX, –40°C
IM2QX, 25°C
IM2QX, 85°C
IM2QX, 105°C
Q-CHANNEL
fRF = 5800MHz
5594 G24
0
1
2
3
4
5
6
7
8
9 10
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
RF FREQUENCY (GHz)
I, –40°C
I, 25°C
I, 85°C
I, 105°C
Q, –40°C
Q, 25°C
Q, 85°C
Q, 105°C
5594 G25
0
1
2
3
4
5
6
7
8
9 10
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
RF FREQUENCY (GHz)
I, –6dBm
I, 0dBm
I, 6dBm
I, 12dBm
Q, –6dBm
Q, 0dBm
Q, 6dBm
Q, 12dBm
5594 G26
0
1
2
3
4
5
6
7
8
9 10
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
RF FREQUENCY (GHz)
I, –40°C
I, 25°C
I, 85°C
I, 105°C
Q, –40°C
Q, 25°C
Q, 85°C
Q, 105°C
OPTIMIZED AT 25°C
5594 G27
0
1
2
3
4
5
6
7
8
9 10
100
90
80
70
60
50
40
30
20
10
0
RF FREQUENCY (GHz)
I, –40°C
I, 25°C
I, 85°C
I, 105°C
Q, –40°C
Q, 25°C
Q, 85°C
Q, 105°C
OPTIMIZED AT 25°C
5594 G22
OIP3 vs LVCM Register Value
Optimized OIP2 vs
Temperature (TC)
HD2 vs Temperature (TC)
OIP2 vs Temperature (TC)
OIP2 vs Temperature (TC) and
Register Value
HD2 vs LO Power
OIP2 vs LO Power
OIP2 vs Temperature (TC) and
Register Value
Optimized HD2 vs
Temperature (TC)



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