Datasheet KGF1256, KGF1256B Datasheet (OKI)

E2Q0024-38-71

This version: Jul. 1998

Previous version: Jan. 1998

KGF1256B/1256¡ electronic components

¡ electronic components

KGF1256B/1256

Medium-Power Amplifier

GENERAL DESCRIPTION

The KGF1256B is a medium-power amplifier, with frequencies ranging from the UHF-band to the L-band, that features high output power, low noise, and low current operation. The KGF1256B specifications are guaranteed to a fixed matching circuit for 5 V and 850 MHz; external impedance-matching circuits are also required. Because of the low noise and high output power at the low operating current, the KGF1256B is ideal as a transmitter-driver amplifier for personal handy phones. The KGF1256 is similar to the KGF1256B in specifications and typical properties. Although having S Parameters that are slightly different from those of the KGF1256B, the KGF1256 meets the specifications for the KGF1256B, even with the same matching circuits.

FEATURES

• High output power: 15 dBm (min.)

• Low noise: 2.5 dB (max.)

• Low current: 40 mA (max.)

• Self-bias circuit configuration with built-in source capacitor

• Package: 4PSOP

PACKAGE DIMENSIONS

1.8±0.1

0.85±0.05

0.6

3.0±0.2

+0.1 –0.05

1.5±0.15

1.9±0.1

2.8±0.15

0.4

+0.1 –0.05

Note: Ask our sales department for detailed requirements of the KGF1256.

1.1±0.15

0.36 0.74

+0.03

0.125

–0

(Unit: mm)

0.3 MIN

0 to 0.15

Package material

Lead frame material

Pin treatment

Solder plate thickness

Epoxy resin

42 alloy

Solder plating

5 mm or more

1/14

MARKING

(4) (3)

X

XD

KGF1256B/1256¡ electronic components

CIRCUIT

(1)

Gate(1)

(2)

GND(4)

ALPHABETICAL

NUMERICAL

PRODUCT TYPE

LOT NUMBER

Drain(3)

Source(2)

(1) Gate (2) Source (3) Drain (4) GND

2/14

ABSOLUTE MAXIMUM RATINGS

KGF1256B/1256¡ electronic components

Item

Drain-source voltage

Gate-source voltage

Drain current I

Total power dissipation

Channel temperature

Storage temperature T

Symbol Condition Max.Unit

V

DS

V

GS

DS

P

tot

T

ch

stg

Ta = 25°C

V

Ta = 25°C 360mA —

Ta = 25°C

—

mW

°C

— 125°C

Min.

—

–3.0

—

–45

7

0.4

300

150

ELECTRICAL CHARACTERISTICS

(Ta = 25°C)

Item

Gate-source leakage current 72

Gate-drain leakage current 360mA—VGD = –11 V —

Drain-source leakage current 720mA—VDS = 3 V, VGS = –2 V —

Drain current —mA 100VDS = 3 V, VGS = 0 V —

Operating current 40.0mA —

Gate-source cut-off voltage –0.5V –1.5VDS = 3 V, IDS = 720 mA—

Transconductance —mS 100VDS = 3 V, IDS = 25 mA —

Noise figure 2.5dB —(*1), f = 850 MHz —

Linear gain G

Output power P

Symbol Condition Max.Unit

I

GSS

I

GDO

I

DS(off)

I

DSS

I

V

GS(off)

g

D

m

= –3 V

V

GS

(*1), P

= 5 dBm,

IN

f = 850 MHz

mA

F

(*1), P –20 dBm

LIN

(*2), P –20 dBm

=

IN

=

IN

f = 850 MHz

f = 1.5 GHz

f = 1.9 GHz

f = 850 MHz

f = 1.5 GHz

dB

f = 1.9 GHz

(*1), P 5 dBm

O

(*2), P 5 dBm

=

IN

=

IN

f = 850 MHz

f = 1.5 GHz

f = 1.9 GHz

f = 850 MHz

f = 1.5 GHz

dBm

f = 1.9 GHz

Min.

Typ.

—

14.0

—

— 15.5

—

18.0

13.0

10.5

18.0

—

—— 12.5

—— 10.0

—16.0 18.0

—

—— 11.5

—— 15.0

—— 13.0

—— 10.5

*1 Self-bias condition: V *2 Self-bias condition: V

= 5±0.25 V, V

DD

= 3 V, VG = 0 V

DD

G

= 0 V

3/14

RF CHARACTERISTICS

KGF1256B/1256¡ electronic components

4/14

KGF1256B/1256¡ electronic components

5/14

KGF1256B/1256¡ electronic components

6/14

KGF1256B/1256¡ electronic components

7/14

KGF1256B/1256¡ electronic components

8/14

Typical S Parameters of KGF1256B

Freq(MHz)

1000.0

1100.0

1200.0

1300.0

1400.0

1500.0

1600.0

1700.0

1800.0

1900.0

2000.0

2100.0

2200.0

2300.0

2400.0

2500.0

2600.0

2700.0

2800.0

2900.0

3000.0

MAG(S11) ANG(S11) MAG(S21) ANG(S21) MAG(S12) ANG(S12) MAG(S22) ANG(S22)

500.0

600.0

700.0

800.0

900.0

0.941

0.917

0.874

0.837

0.806

0.777

0.755

0.737

0.720

0.710

0.703

0.700

0.693

0.691

0.696

0.693

0.695

0.704

0.702

0.707

0.716

0.719

0.727

0.731

–52.03

–62.43

–71.90

–78.93

–86.02

–92.27

–98.15

–102.90

–108.50

–113.18

–117.55

–122.22

–126.28

–131.15

–135.24

–139.61

–144.32

–147.69

–152.62

–156.91

–161.26

–165.51

–170.07

–174.51

–178.84

177.05

5.226

5.315

5.111

4.827

4.537

4.238

3.966

3.730

3.496

3.307

3.145

2.968

2.830

2.672

2.559

2.432

2.310

2.205

2.092

2.006

1.898

1.816

1.732

1.646

1.561

1.492

134.33

126.90

117.12

108.84

101.30

94.02

87.45

81.35

75.71

70.03

65.11

59.63

55.27

51.43

45.44

40.78

36.30

32.02

27.18

23.36

19.63

15.30

11.81

8.05

4.42

0.51

0.051

0.052

0.050

0.048

0.051

0.052

0.057

0.061

0.066

0.077

0.082

0.093

0.104

0.115

0.131

0.146

0.159

0.174

0.194

0.210

0.223

0.243

0.253

0.269

0.283

KGF1256B/1256¡ electronic components

V

= 3 V, VG = 0 V, ID = 14.0 mA

DD

42.22

39.67

38.92

43.95

44.67

52.24

54.10

61.31

68.35

68.45

73.21

74.54

76.69

76.81

78.98

77.39

77.41

73.86

73.40

70.69

66.14

65.02

61.54

58.95

56.33

53.45

0.531

0.470

0.443

0.426

0.415

0.412

0.407

0.412

0.413

0.428

0.435

0.446

0.454

0.461

0.481

0.494

0.500

0.520

0.534

0.547

0.570

0.576

0.597

0.607

0.614

0.630

–76.18

–86.88

–94.46

–99.94

–105.46

–109.85

–114.89

–118.94

–123.38

–127.26

–131.30

–136.06

–139.61

–143.33

–147.66

–151.56

–156.02

–160.73

–164.01

–169.05

–172.95

–177.32

178.74

174.30

169.67

165.37

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Typical S Parameters of KGF1256B

V

= 3 V, VG = 0 V, ID = 14.0 mA

DD

Frequency : 0.5 to 3.0 GHz

KGF1256B/1256¡ electronic components

Z0 = 50 W

10/14

Typical S Parameters of KGF1256B

Freq(MHz)

1000.0

1100.0

1200.0

1300.0

1400.0

1500.0

1600.0

1700.0

1800.0

1900.0

2000.0

2100.0

2200.0

2300.0

2400.0

2500.0

2600.0

2700.0

2800.0

2900.0

3000.0

MAG(S11) ANG(S11) MAG(S21) ANG(S21) MAG(S12) ANG(S12) MAG(S22) ANG(S22)

500.0

600.0

700.0

800.0

900.0

0.946

0.929

0.888

0.849

0.819

0.798

0.772

0.754

0.737

0.734

0.725

0.719

0.714

0.712

0.720

0.715

0.716

0.720

0.726

0.730

0.736

0.742

0.746

0.753

–50.39

–60.59

–69.71

–77.00

–83.83

–90.00

–95.94

–101.07

–106.32

–111.29

–115.68

–120.16

–124.65

–129.15

–133.48

–137.90

–142.76

–146.59

–151.65

–155.82

–160.35

–164.80

–169.18

–173.83

–178.20

177.40

5.163

5.261

5.067

4.808

4.532

4.249

3.991

3.747

3.514

3.326

3.174

2.997

2.860

2.700

2.585

2.467

2.331

2.229

2.108

2.017

1.907

1.825

1.734

1.648

1.566

1.494

134.98

127.92

118.20

109.79

102.16

94.87

88.30

81.91

76.24

70.45

65.44

59.74

55.18

50.32

45.17

40.55

35.99

31.65

26.60

22.47

19.12

14.31

10.62

7.08

3.43

–0.62

0.046

0.044

0.043

0.045

0.044

0.045

0.052

0.057

0.066

0.074

0.082

0.096

0.106

0.117

0.136

0.151

0.165

0.184

0.202

0.218

0.237

0.252

0.267

0.285

0.296

KGF1256B/1256¡ electronic components

V

= 5 V, VG = 0 V, ID = 15.4 mA

DD

41.95

42.66

43.75

47.27

46.06

60.51

62.09

68.42

76.71

76.64

81.63

84.47

85.33

81.95

83.83

82.48

83.14

78.59

76.66

75.03

71.03

67.89

64.26

60.87

57.36

55.75

0.531

0.469

0.439

0.426

0.420

0.414

0.407

0.414

0.424

0.437

0.442

0.451

0.460

0.475

0.490

0.509

0.517

0.539

0.551

0.563

0.583

0.595

0.611

0.623

0.632

0.648

–72.83

–82.56

–89.70

–94.94

–99.99

–104.80

–109.30

–113.96

–118.19

–122.15

–126.67

–131.24

–134.86

–138.98

–143.98

–147.62

–152.36

–156.77

–160.66

–165.98

–169.93

–174.37

–179.30

176.68

171.64

167.22

11/14

Typical S Parameters of KGF1256B

V

= 5 V, VG = 0 V, ID = 15.4 mA

DD

Frequency : 0.5 to 3.0 GHz

KGF1256B/1256¡ electronic components

Z0 = 50 W

12/14

Test Circuit and Bias Configuration for KGF1256B at 850 MHz

KGF1256B/1256¡ electronic components

C

S

RFC

(2)

(1) (3)

KGF 1256B

(4)

T

7

F(Feed through)

T

5

4

T

6

C

3

T4: Z0 = 75 W, E = 30 deg T

: Z0 = 75 W, E = 30 deg

5

T

: Z0 = 100 W, E = 1 deg

7

= 1000 pF

IN

R

G

C

1

T

2

1

T

3

C

2

T1: Z0 = 75 W, E = 30 deg T

: Z0 = 75 W, E = 28 deg

2

T

= T6: Z0 = 100 W, E = 5 deg

3

C

= 7.0 pF, C2 = 0.8 pF, C3 = 5.0 pF, C4 = 5.5 pF, CS = 100 pF

1

C

C(DC Block)

RFC = 200 nH, R

= 1000 pF, C

= 1000 W

G

Test Circuit and Bias Configuration for KGF1256B at 1.5 GHz

C

S

C

B

C

F

V

DD

OUT

C

4

C

F

V

DD

IN

T

2

1

(2)

(1) (3)

KGF 1256B

C

R

T

G

3

C

1

(4)

T

8

T1: Z0 = 75 W, E = 65 deg T

: Z0 = 75 W, E = 40 deg

2

T

= T6 = T7: Z0 = 100 W, E = 8 deg

3

C

= 2.4 pF, C2 = 1.2 pF, C3 = 0.6 pF, CS = 100 pF

1

C

C(DC Block)

RFC = 60 nH, R

= 1000 pF, C

= 1000 W

G

B(By-pass)

= 1000 pF, C

T

5

4

T

6

C

T

C

2

RFC

T

T4: Z0 = 75 W, E = 50 deg T

: Z0 = 75 W, E = 50 deg

5

T

: Z0 = 100 W, E = 1 deg

8

F(Feed through)

= 1000 pF

OUT

C

7

3

13/14

Test Circuit and Bias Configuration for KGF1256B at 1.9 GHz

KGF1256B/1256¡ electronic components

IN

C

S

T

2

1

(2)

(1) (3)

KGF 1256B

C

R

T

G

3

C

1

(4)

T

8

T1: Z0 = 75 W, E = 65 deg T

: Z0 = 75 W, E = 40 deg

2

T

= T6 = T7: Z0 = 100 W, E = 1 deg

3

C

= 1.7 pF, C2 = 1.3 pF, C3 = 0.2 pF, CS = 100 pF

1

C

C(DC Block)

RFC = 60 nH, R

= 1000 pF, C

= 1000 W

G

B(By-pass)

= 1000 pF, C

C

T

4

T

6

C

B

RFC

T

5

T

C

2

T4: Z0 = 75 W, E = 50 deg T

: Z0 = 75 W, E = 50 deg

5

T

: Z0 = 100 W, E = 1 deg

8

F(Feed through)

= 1000 pF

F

V

DD

OUT

C

7

3

14/14