Specifications and information are subject to change without notice

WJ Communications, Inc

Phone 1-800-WJ1-4401 FAX: 408-577-6621

e-mail: sales@wj.com

Web site: www.wj.com

Page 2 of 5 April 2005

ECG012

0.1 Watt, High Linearity InGaP HBT Amplifier

Product Information

Typical Device Data

S-Parameters (Vcc = +3 V, Icc = 100 mA, T = 25 C, unmatched 50 ohm system)

0

1000

2000

3000

Frequency (MHz)

Gain / Maximum Stable Gain

0

5

10

15

20

25

30

DB(|S(2,1)|)

DB(GMax())

10.0

5.0

3.

0

4.

0

-0.

2

-0

.4

S11

Swp Max

3000MHz

Swp Min

50MHz

10.0

5.0

3.

0

4.

0

-0.

2

-0

.4

S22

Swp Max

3000MHz

Swp Min

50MHz

Notes:

The gain for the unmatched device in 50 ohm system is shown as the trace in black color. For a tuned circuit for a particular frequency,

it is expected that actual gain will be higher, up to the maximum stable gain. The maximum stable gain is shown in the dashed red line.

The impedance plots are shown from 50 – 3000 MHz, with markers placed at 0.5 – 3.0 GHz in 0.5 GHz increments.

S-Parameters (Vcc = +3 V, Icc = 100 mA, T = 25 C, unmatched 50 ohm system, calibrated to device leads)

Freq (MHz)

S11 (dB)

S11 (ang)

S21 (dB)

S21 (ang)

S12 (dB)

S12 (ang)

S22 (dB)

S22 (ang)

50

-6.10

-155.37

20.62

150.95

-25.48

18.56

-8.19

-109.32

250

-3.49

-176.62

14.94

140.53

-23.11

6.69

-5.84

-166.90

500

-3.10

174.48

13.45

129.49

-22.77

5.89

-5.64

178.74

750

-2.96

167.11

12.26

115.68

-22.45

3.33

-5.43

170.66

1000

-2.79

160.22

11.17

102.37

-22.24

1.71

-5.27

162.86

1250

-2.64

153.20

10.12

89.48

-21.89

-0.69

-5.06

156.23

1500

-2.55

146.05

9.07

78.22

-21.32

-2.91

-5.01

149.29

1750

-2.44

138.76

8.18

67.48

-21.09

-5.27

-4.84

142.22

2000

-2.49

132.13

7.30

57.62

-20.45

-7.61

-4.77

135.81

2250

-2.39

125.66

6.45

48.01

-20.33

-11.25

-4.69

128.87

2500

-2.35

119.11

5.69

39.53

-19.88

-16.63

-4.68

122.52

2750

-2.28

111.83

4.98

30.50

-19.58

-18.56

-4.70

115.41

3000

-2.29

104.87

4.30

21.43

-18.98

-24.51

-4.54

108.72

Device S-parameters are available for download off of the website at: http://www.wj.com

Application Circuit PC Board Layout

Circuit Board Material: .014” Getek, 4 layers (other layers added for rigidity), .062” total thickness, 1 oz copper

Microstrip line details: width = .026”, spacing = .026”