Datasheet KGF1181B Datasheet (OKI)

E2Q0021-38-72

This version: Jul. 1998

Previous version: Jan. 1998

KGF1181B¡ electronic components

¡ electronic components

KGF1181B

Medium-Power Amplifier

GENERAL DESCRIPTION

The KGF1181B is a two-stage medium-power UHF-band amplifier that features high gain, high
output power, and low power operation. The internally matched 50 W input and output eliminate
external impedance-matching circuits. All specifications for this device are guaranteed at 5 V and
850 MHz. Because of the high gain and high output power, the KGF1181B is ideal as a
transmitter-intermediate-stage amplifier for personal handy phones.

FEATURES

• Internally matched 50 W input and output

• High linear gain: 20 dB (min.)

• High output power: 11.5 dBm (min.)

• Low current operation: 40 mA (max.)

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

• Package: 4PSOP

PACKAGE DIMENSIONS

1.8±0.1

0.85±0.05

+0.1

0.6

–0.05

3.0±0.2

1.5±0.15

1.9±0.1

2.8±0.15

0.4

+0.1
–0.05

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

1/8

MARKING

(4) (3)

X

XC

KGF1181B¡ electronic components

CIRCUIT

IN(1)

(1)

VD1(2)

C

f

R

f

Q

1

R

G1

C

S1

(2)

C

C

R

S1

GND(4)

NUMERICAL

NUMERICAL

PRODUCT TYPE

R

G2

C

S2

LOT
NUMBER

OUT(3)

Q

2

R

S2

(1) IN
(2) V

D1

(3) OUT
(4) GND

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ABSOLUTE MAXIMUM RATINGS

KGF1181B¡ electronic components

Item

Supply voltage

Input power

Total power dissipation

Channel temperature

Storage temperature T

Symbol Conditions Max.Unit

V

DD

P

IN

P

tot

T

ch

stg

Ta = 25°C

Ta = 25°C

Ta = 25°C

—

— 125°C

ELECTRICAL CHARACTERISTICS

Item

Operating current 40.0mA

Output power P

Input return loss R

*1 Self-bias condition: V

Symbol Conditions Max.Unit

I

D

LIN

LIN

= 5.2 V, f = 850 MHz

DD

(*1), P

(*1), P

O

= 0 dBm

IN

–20 dBm dB

IN

=

V

dBm

mW

°C

dBm

dB —— –18.0(*1), PIN = –20 dBm

Min.

-45

Min.

—

20.0

—

—

—

—

Typ.

—

—Linear gain G

10

6

300

150

(Ta = 25°C)

—

—11.5 —(*1), PIN = 0 dBm

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RF CHARACTERISTICS

KGF1181B¡ electronic components

4/8

KGF1181B¡ electronic components

5/8

Typical S Parameters

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

0.225

0.194

0.160

0.128

0.099

0.078

0.079

0.099

0.122

0.143

0.162

0.173

0.182

0.189

0.192

0.196

0.197

0.196

0.195

0.192

0.195

0.193

0.194

0.195

0.196

0.198

–73.96

–83.51

–95.59

–113.58

–139.96

–176.28

140.16

109.32

88.58

72.45

61.99

52.98

45.27

39.56

34.22

29.98

25.53

21.33

17.92

14.26

11.84

8.31

6.31

4.04

0.81

–1.35

10.928

11.264

11.461

11.551

11.432

10.984

10.295

9.320

8.398

7.362

6.483

5.707

5.011

4.435

3.942

3.512

3.158

2.856

2.580

2.347

2.131

1.960

1.796

1.661

1.535

1.424

–34.12

–46.61

–59.58

–73.18

–87.52

–102.34

–116.91

–130.65

–143.34

–154.70

–164.55

–173.40

178.69

171.29

164.86

158.67

153.01

147.49

142.39

137.60

133.02

128.32

124.09

119.21

115.25

110.74

0.018

0.023

0.028

0.033

0.038

0.043

0.046

0.051

0.053

0.056

0.058

0.061

0.063

0.064

0.068

0.070

0.073

0.075

0.079

0.081

0.086

0.089

0.093

0.096

0.099

0.103

93.77

91.50

88.67

86.61

81.86

77.98

74.33

69.99

67.04

65.05

63.02

61.23

60.52

57.80

58.14

57.52

56.93

55.36

55.00

55.69

53.68

52.40

50.34

49.57

49.19

47.80

KGF1181B¡ electronic components

V

= 5 V, ID = 25.5 mA

DD

0.391

0.350

0.305

0.259

0.211

0.180

0.179

0.210

0.246

0.284

0.314

0.340

0.356

0.372

0.381

0.390

0.401

0.405

0.411

0.412

0.418

0.423

0.428

0.438

0.445

0.455

–61.62

–72.91

–87.74

–106.94

–133.79

–168.49

152.13

120.21

96.42

79.27

66.56

56.49

48.34

41.34

35.18

29.57

24.62

20.51

16.27

12.62

9.36

5.63

2.81

–0.43

–2.91

–6.22

6/8

Typical S Parameters

V

= 5 V, ID = 25.5 mA

DD

Frequency : 0.5 to 3.0 GHz

Z0 = 50 W

KGF1181B¡ electronic components

7/8

Test Circuit and Bias Configuration for KGF1181B

Feed through
Capacitor 1000 pF

KGF1181B¡ electronic components

= 5 V

V

DD

1000 pF

IN OUT

DC Block

1000 pF

50 W Line 50 W Line

Test Circuit Board for KGF 1181B

200 W

(2)

(1) (3)

KGF

1181B

(4)

+

10 mF

–

Choke Coil

60 nH

DC Block

1000 pF

Substrate : Glass-epoxy resin

( 0.8 mmt,18 mt Cu plated both side, er=4.8 )

8/8