NE688 datasheet(5/20 Pages) CEL

Part #	NE688

Description	SURFACE MOUNT NPN SILICON HIGH FREQUENCY TRANSISTOR

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Manufacturer	CEL [California Eastern Labs]

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NE688 SERIES

0.1

0.538

-68.800

32.261

136.000

0.023

64.800

0.741

-42.000

0.322

31.469

0.4

0.385

-146.900

11.973

94.900

0.053

57.300

0.302

-81.000

0.818

23.539

0.8

0.358

-179.500

6.233

76.200

0.090

57.600

0.191

-94.800

0.984

18.405

1.0

0.352

170.400

5.038

69.100

0.109

56.000

0.169

-98.300

1.014

15.931

1.5

0.345

152.000

3.447

53.400

0.157

49.400

0.139

-102.200

1.040

12.192

2.0

0.335

137.400

2.649

39.400

0.206

41.200

0.120

-104.900

1.048

9.756

2.5

0.334

124.900

2.189

25.600

0.255

32.000

0.101

-108.700

1.041

8.090

3.0

0.334

112.100

1.904

12.300

0.302

22.000

0.081

-124.300

1.036

6.829

4.0

0.396

83.800

1.544

-13.400

0.390

0.900

0.100

147.600

1.012

5.314

5.0

0.483

50.200

1.294

-38.000

0.453

-20.200

0.236

112.500

0.997

4.558

TYPICAL SCATTERING PARAMETERS (TA = 25°C)

NE68819

VCE = 3.0 V, IC = 20 mA

FREQUENCY

S11

S21

S12

S22

K

MAG1

GHz

MAG

ANG

MAG

ANG

MAG

ANG

MAG

ANG

(dB)

VCE = 5.0 V, IC = 10 mA

0.1

0.717

-44.700

22.801

147.800

0.029

68.600

0.867

-28.800

0.210

28.956

0.4

0.466

-119.600

10.924

103.000

0.063

49.200

0.442

-67.400

0.609

22.390

0.8

0.383

-161.000

5.912

80.300

0.093

48.100

0.279

-81.500

0.886

18.033

1.0

0.371

-173.600

4.804

72.300

0.108

47.600

0.246

-84.900

0.954

16.482

1.5

0.356

163.800

3.304

55.300

0.149

43.800

0.206

-89.800

1.029

12.415

2.0

0.349

146.600

2.545

40.600

0.192

37.800

0.183

-94.100

1.055

9.785

2.5

0.346

131.700

2.110

26.300

0.237

30.200

0.163

-99.400

1.055

8.057

3.0

0.349

118.200

1.842

12.700

0.282

21.500

0.140

-111.400

1.045

6.851

4.0

0.403

87.800

1.503

-13.400

0.369

1.900

0.113

-179.400

1.015

5.349

5.0

0.485

53.100

1.262

-38.900

0.437

-18.800

0.229

127.200

0.992

4.606

Note:

1.Gain Calculations:

MAG =

|S21|

|S12|

K - 1

).

2

(K ±

∆ = S11 S22 - S21 S12

When K

≤ 1, MAG is undefined and MSG values are used. MSG =

|S21|

|S12|

, K = 1 + | ∆ | - |S

11

| - |S22|

2

2 |S12 S21|

,

MAG = Maximum Available Gain

MSG = Maximum Stable Gain

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