![](http://datasheet.mmic.net.cn/230000/NE687_datasheet_15597277/NE687_2.png)
FREQ.
(MHz)
NF
OPT
(dB)
G
A
(dB)
Γ
OPT
MAG
ANG
Rn/50
V
CE =
1.0
V
,
I
C =
3.0 mA
500
800
1000
1500
2000
V
CE =
2.0
V
,
I
C =
3.0 mA
500
800
1000
1500
2000
V
CE =
2.0
V
,
I
C =
20.0
mA
1.10
1.19
1.25
1.36
1.50
17.66
14.48
12.93
9.61
7.52
0.47
0.39
0.34
0.29
0.24
15
33
45
57
73
0.28
1.20
0.28
0.27
0.27
1.10
1.19
1.25
1.36
1.50
18.60
15.10
13.40
10.30
8.10
0.40
0.35
0.31
0.26
0.23
12
24
33
44
58
0.30
0.22
0.26
0.28
0.28
500
800
1000
1500
2000
2500
2.00
2.06
2.10
2.20
2.34
2.46
20.30
16.70
15.00
11.90
9.80
6.70
0.02
0.06
0.08
0.12
0.14
0.18
-170
171
172
178
-175
-160
0.23
0.15
0.28
0.24
0.24
0.23
SYMBOLS
PARAMETERS
UNITS
RATINGS
V
CBO
Collector to Base Voltage
V
5
V
CEO
V
EBO
I
C
T
J
Collector to Emitter Voltage
Emitter to Base Voltage
Collector Current
Operating Junction
Temperature
V
V
3
2
30
mA
°
C
150
T
STG
Storage Temperature
°
C
-65 to +150
NE687 SERIES
NE68730
TYPICAL NOISE PARAMETERS
(TA = 25
C)
NE68739
TYPICAL NOISE PARAMETERS
(T
A
= 25
C)
FREQ.
(MHz)
NF
OPT
(dB)
G
A
(dB)
Γ
OPT
MAG
ANG
Rn/50
V
CE =
0.5
V
,
I
C =
0.5 mA
500
800
1000
V
CE =
1.0
V
,
I
C =
3.0 mA
1.23
1.37
1.45
15.7
10.9
8.7
0.77
0.71
0.60
36
46
64
0.61
0.61
0.50
500
800
1000
1500
2000
2500
V
CE =
2.0
V
,
I
C =
3.0
mA
1.07
1.13
1.18
1.30
1.50
1.66
18.0
14.8
13.2
10.5
8.0
7.0
0.48
0.39
0.32
0.23
0.12
0.16
30
49
60
76
120
-172
0.31
0.28
0.26
0.24
0.20
0.15
500
800
1000
1500
2000
2500
3000
V
CE =
2.0
V
,
I
C =
20.0
mA
500
800
1000
1500
2000
2500
3000
1.07
1.13
1.18
1.30
1.50
1.66
1.86
18.6
15.5
14.0
11.2
9.3
7.8
6.6
0.46
0.37
0.32
0.20
0.12
0.14
0.23
26
38
46
66
113
177
-157
0.28
0.28
0.26
0.25
0.19
0.17
0.10
1.93
1.95
2.00
2.15
2.30
2.40
2.52
21.2
17.6
16.0
12.9
10.6
9.0
7.7
0.08
0.14
0.16
0.21
0.26
0.31
0.46
-150
-138
-134
-127
-123
-121
-114
0.22
0.17
0.17
0.24
0.25
0.25
0.24
ABSOLUTE MAXIMUM RATINGS
1
(T
A
= 25
°
C)
Note:
1. Operation in excess of any one of these parameters may result
in permanent damage.
V
CE =
0.5
V
,
I
C =
0.5 mA
500
800
1000
V
CE =
1.0 V
,
I
C =
1.0 mA
500
800
1000
1500
2000
V
CE =
1.0
V
,
I
C =
3 mA
1.10
1.31
1.41
13.07
11.23
9.36
0.72
0.67
0.65
30
54
67
1.00
0.65
0.55
FREQ.
(MHz)
NF
OPT
(dB)
G
A
(dB)
Γ
OPT
MAG
ANG
Rn/50
NE68718
TYPICAL NOISE PARAMETERS
(T
A
= 25
C)
0.93
1.08
1.20
1.48
1.72
16.53
13.44
12.21
8.53
6.50
0.63
0.59
0.55
0.46
0.37
27
47
62
83
107
0.56
0.39
0.36
0.34
0.28
500
800
1000
1500
2000
2500
3000
V
CE =
2
V
,
I
C =
3 mA
500
800
1000
1500
2000
2500
3000
1.10
1.15
1.20
1.38
1.60
1.82
2.00
18.68
15.74
13.90
10.63
8.43
7.04
5.84
0.48
0.40
0.36
0.28
0.21
0.14
0.16
23
48
58
81
104
151
-167
0.28
0.25
0.24
0.21
0.20
0.18
0.13
V
CE =
2
V
,
I
C =
10 mA
500
800
1000
1500
2000
2500
3000
1.10
1.15
1.20
1.38
1.60
1.82
2.00
19.83
16.61
14.85
11.83
9.49
8.16
6.93
0.50
0.42
0.38
0.29
0.23
0.14
0.13
21
39
48
74
91
135
177
0.26
0.26
0.25
0.24
0.22
0.20
0.12
1.60
1.62
1.65
1.73
1.80
2.00
2.19
22.57
18.75
16.91
13.52
11.17
9.48
8.18
0.13
0.11
0.09
0.07
0.06
0.08
0.13
19
48
67
100
143
-161
-133
0.27
0.26
0.25
0.24
0.22
0.20
0.16