ad8348-eval Analog Devices, Inc., ad8348-eval Datasheet - Page 13

• Manufacturer Part Number: ad8348-eval
• Description: 50 Mhz To 1000 Mhz Quadrature Demodulator
• Manufacturer: Analog Devices, Inc.

Figure 24. IIP3 vs. F
Figure 25. IIP3 vs. F
Figure 26. Noise Figure vs. F
–10
–15
–20
32
30
28
26
24
22
–5
16
15
14
13
12
10
0
11
9
8
0
0
50
5V, 0.2V, +85°C
10
10
150
2.7V, 1.2V, +25°C
2.7V, 0.2V, –40°C
Temperature = −40°C, +25°C, +85°C
Temperature = −40°C, +25°C, +85°C
20
20
250
BB
BB
BASEBAND FREQUENCY (MHz)
BASEBAND FREQUENCY (MHz)
, VGIN = 1.2 V, F
, VGIN = 0.2 V, F
30
30
350
IF FREQUENCY (MHz)
40
40
IF
450
5V, 1.2V, +85°C
, T = 25°C, VGIN = 0.2 V, F
5V, 1.2V, –40°C
2.7V, 0.2V, +85°C
5V, 0.2V, –40°C
50
50
550
IF
IF
2.7V, 0.2V, +25°C
= 380 MHz, V
= 380 MHz, V
60
60
650
70
70
NF VGIN = 0.2V
5V, 0.2V, +25°C
5V, 1.2V, +25°C
2.7V, 1.2V, –40°C
2.7V, 1.2V, +85°C
750
80
80
POS
POS
850
= 2.7 V, 5 V,
= 2.7 V, 5 V,
BB
90
90
= 1 MHz
950
100
100
Rev. A | Page 13 of 28
Figure 29. Noise Figure and Quadrature Phase Error IMXO/QMXO vs. LO Input
45
40
35
30
25
20
15
10
40
35
30
25
20
15
10
Level, Temperature = 25°C, VGIN = 0.2 V, V
16
15
14
13
12
10
11
5
0
5
0
9
8
0.2
0.2
–12
Figure 27. Noise Figure and IIP3 vs. VGIN, Temperature = 25°C,
Figure 28. Noise Figure and IIP3 vs. VGIN, Temperature = 25°C,
0.3
0.3
–10
0.4
0.4
PHASE ERROR 50MHz
F
F
IF
IF
= 380 MHz, F
PHASE ERROR 900MHz
= 380 MHz, F
0.5
0.5
–8
380 MHz, and 900 MHz
LO INPUT LEVEL (V)
0.6
0.6
NF @ LO = 900MHz
NF @ LO = 380MHz
VGIN (V)
VGIN (V)
NF @ LO = 50MHz
BB
0.7
0.7
–6
BB
= 1 MHz, V
= 1 MHz, V
0.8
0.8
PHASE ERROR 380MHz
NF
NF
–4
0.9
0.9
POS
POS
POS
= 5 V for F
= 2.7 V
= 5 V
1.0
1.0
–2
1.1
1.1
IIP3
IIP3
IF
AD8348
= 50 MHz,
1.2
1.2
0
35
30
25
20
15
10
5
0
–5
–10
35
30
25
20
15
10
5
0
–5
–10
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0