8

Table 5. Typical Scattering Parameters, Vdd = 4.8 V, Idd = 35 mA

LNA SPAR (100 MHz – 20 GHz). The S-parameter is for single amplifier.

Freq

S11

S11

S21

S21

S12

S12

S22

S22

(GHz)

(dB)

(ang)

(dB)

(ang)

(dB)

(ang)

(dB)

(ang)

0.1

-0.256

-11.004

29.400

161.000

-54.136

69.450

-1.119

-5.967

0.5

-3.272

-38.907

25.700

110.000

-41.500

67.641

-1.411

-27.507

0.7

-4.480

-44.800

23.600

94.579

-39.100

62.952

-1.541

-37.021

0.9

-5.414

-48.213

22.200

81.787

-37.300

59.100

-1.649

-46.227

1.0

-5.760

-49.321

21.285

76.115

-36.600

57.374

-1.661

-51.112

1.45

-6.970

-53.422

18.700

53.457

-34.100

47.978

-1.812

-73.622

1.7

-7.300

-58.425

17.500

41.375

-33.000

42.475

-1.970

-85.851

1.95

-7.493

-63.400

16.500

29.771

-32.200

36.900

-2.100

-99.158

2.0

-7.527

-64.400

16.300

27.370

-32.100

35.560

-2.143

-102.000

2.5

-7.560

-74.037

14.300

4.565

-31.262

24.825

-2.320

-131.000

3.0

-7.326

-84.245

12.255

-17.490

-31.200

15.200

-2.230

-161.449

3.5

-6.920

-94.352

10.248

-37.352

-31.600

11.600

-1.930

172.000

4.0

-6.420

-105.000

8.414

-55.260

-31.800

13.660

-1.644

150.000

4.5

-5.780

-116.000

6.673

-71.667

-31.400

18.900

-1.427

132.000

5.0

-5.130

-124.753

5.155

-87.649

-30.100

23.400

-1.340

112.502

5.5

-4.520

-134.000

3.324

-103.000

-28.600

24.900

-1.120

96.135

6.0

-4.209

-143.000

1.392

-116.000

-28.300

12.149

-0.899

84.300

7.0

-3.740

-168.000

-1.690

-144.000

-25.600

10.395

-0.701

60.390

8.0

-2.716

165.000

-4.532

-171.000

-23.100

-4.646

-0.802

34.880

9.0

-1.690

149.000

-7.183

164.000

-21.200

-20.900

-0.608

9.433

10.0

-1.250

135.000

-8.970

141.000

-19.300

-37.200

-0.071

-8.985

11.0

-0.532

105.000

-10.400

114.000

-17.000

-54.965

-0.248

-19.965

12.0

-0.971

62.400

-12.780

85.720

-16.200

-71.880

-0.114

-17.700

13.0

-0.171

46.500

-15.500

63.700

-16.000

-86.995

-0.594

-29.595

14.0

-0.099

43.890

-17.300

40.790

-15.800

-98.010

-0.426

-46.110

15.0

-0.413

38.975

-15.700

14.775

-14.400

-110.000

-0.402

-74.425

16.0

-0.689

6.360

-14.200

-53.400

-8.934

-140.400

-0.828

-93.840

17.0

-1.565

-42.955

-10.800

-85.965

-7.439

-167.550

-1.120

-104.000

18.0

-3.827

-82.300

-12.700

-150.000

-6.623

137.000

-2.507

-109.000

19.0

-10.485

-85.000

-14.000

-167.000

-15.500

114.000

-4.484

-86.815

20.0

-12.300

19.900

-19.300

143.000

-13.600

68.800

-4.230

-132.000

Table 6. Typical Noise Parameters for single amplifier, Vdd = 4.8 V, Idd = 35 mA

Freq

Fmin

Γopt

Γopt

MHz

dB

Mag.

Ang.

1440

0.31

0.245

56.3

0.05

1750

0.28

0.256

76.2

0.04

1950

0.34

0.236

103.5

0.03

2350

0.4

0.229

136.6

0.03

Notes:

1. The Fmin values are based on noise figure measurements at multiple input impedances using Focus source pull test system. From these

measurements a true Fmin is calculated.

2. Scattering and noise parameters are measured on coplanar waveguide made on 0.010 inch thick ROGER 4350. The input reference plane is at the

end of the RFinput pin and the output reference plane is at the end of the RFoutput pin as shown in Figure 7.

3. Idd can be obtained by varying the Vg1/Vg2. Refer to figure 7.