rev. 0
–9–
AD8347
baseband 频率
–
MHz
IIP3
–
dBm
–
34
0 100510
–
24
15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95
–
32
–
30
–
26
–
28
–
22
–
20
–
18
–
16
–
14
–
12
–
10
V
S
= 2.7v,
T
一个
= +25
C
V
S
= 5v, t
一个
= +25
C
V
S
= 5v, t
一个
= +85
C
V
S
= 2.7v, t
一个
= +85
C
V
S
= 2.7v,
T
一个
=
–
40
C
V
S
= 5v, t
一个
=
–
40
C
tpc 13. iip3 vs. f
BB
, v
GIN
= 0.2 v, f
LO
= 1900 mhz
rf 频率
–
MHz
IIP2
–
dBm
800
40
20
25
35
30
45
50
1000 1200 1400 1600 1800 2000 2200 2400 2600
tpc 14. iip2 vs. f
LO
,
V
GIN
= 1.2 v, baseband
tone1 = 5 mhz, –10 dbm, baseband tone2 = 6 mhz,
–10 dbm, 温度 = 25
c, v
S
= 5 v
lo 频率
–
MHz
噪音 图示
–
dB
800
12.0
10.0
10.5
11.5
11.0
12.5
13.0
1000 1200 1400 1600 1800 2000 2200 2400 2600
V
S
= 2.7v
V
S
= 5v
tpc 15. 噪音 图示 vs. lo 频率 (f
LO
),
温度 = 25
c, v
GIN
= 0.2 v, f
BB
= 1 mhz
V
GIN
–
V
噪音 图示
–
dB
0.2
40
10
30
20
50
60
0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
70
–
30
–
25
–
20
–
15
–
10
–
5
0
5
10
15
V
S
= 2.7v
V
S
= 5v
V
S
=2.7v
V
S
= 5v
0
IIP3
tpc 16. 噪音 图示 和 iip3 vs. v
GIN
,
温度 = 25
c, f
LO
= 1900 mhz, f
BB
= 1 mhz
lo 输入 水平的
–
dBm
quadrature 阶段 错误
–
Degrees
–
20
–
0.5
–
2.0
–
1.0
–
1.5
0
0.5
–
18
–
16
–
14
–
12
–
10
–
8
–
6
–
4
1.0
–
2.5
–
20
1.5
2.0
2.5
lo 频率 = 1900mhz
lo 频率 = 2700mhz
lo 频率 = 800mhz
tpc 17a. quadrature 错误 vs. lo 电源 水平的,
温度 = 25
c,
V
GIN
= 0.2 v, v
S
= 5 v
lo 输入 水平的
–
dBm
噪音 图示
–
dB
–
20
11.0
9.5
10.5
10.0
11.5
12.0
–
18
–
16
–
14
–
12
–
10
–
8
–
6
–
4
12.5
9.0
–
20
13.0
13.5
14.0
1900MHz
2700MHz
800MHz
tpc 17b. 噪音 图示 vs. lo 输入 水平的,
温度 = 25
c, v
GIN
= 0.2 v, v
S
= 5 v
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