Legend

+ 25 ºC

+ 85 ºC - - - - - - -55 ºC

RF AMPLIFIER

MODEL

QBH-842

Specifications

Maximum Ratings

Ambient Operating Temperature .............. -55ºC to + 125 ºC

Storage Temperature ............................... -65ºC to + 150 ºC

Case Temperature ................................................. + 125 ºC

DC Voltage ...................................................... + 16.5 Volts

Continuous RF Input Power .............................. + 13.0 dBm

Short Term RF Input Power ...... 50 Milliwatts (1 Minute Max.)

Maximum Peak Power .................... 0.5 Watt (3

µsec Max.)

Features

!

!

!

!

! High Gain: 13.5 dB Typical

!

!

!

!

! High Power: +26 dBm Typical

!

!

!

!

! Operating Temp. - 55 ºC to +85 ºC

!

!

!

!

! Environmental Screening Available

CHARACTERISTIC

TYPICAL

MIN/MAX

Ta= 25 ºC

Ta = -55 ºC to +85 ºC

Frequency

10 - 250 MHz

10 - 250 MHz

Power

Vdc

+15

+15

mA

122

125 Max.

Noise Figure (dB)

7.5

8.1 Max.

VSWR

In

1.5:1

1.5:1 Max.

Out

1.8:1

1.8:1 Max.

Reverse Isolation (dB)

-24

-24 Min.

Gain (dB)

13.5

Gain Flatness

0.5

0.5 Max.

Output Intercept point

3rd Order

+40

+38 Min.

2nd Order

+48

+45 Min.

Gain vs. Temperature

+0.5/-0.5 Max.

1 dB Compression (dBm)

+26

+26 Min.

± 0.5

Typical Performance Data

Note: Specifications are guaranteed when tested in a 50 Ohm system.

Specifications indicated as typical are not guaranteed.

03/11/05

Linear S-Parameters Data

FREQ.

– – S11– –

– – S21– –

– – S12– –

– – S22– –

MHz

Ang

dB

Ang

dB

Ang

dB

Ang

dB

10

40

50

70

80

90

150

200

250

-29.2

-26.8

-26.8

-26.9

-27.0

-27.3

-30.5

-33.5

-27.1

8.1

-8.3

-13.8

-21.1

-27.2

-31.0

-67.1

-140.1

154.4

13.2

13.2

13.2

13.2

13.2

13.2

13.1

13.2

13.4

179.4

164.3

160.1

151.6

147.5

143.2

118.6

98.4

77.0

-38.2

-37.0

-36.4

-35.3

-34.7

-34.0

-31.3

-29.5

-28.0

12.6

18.5

19.9

22.2

22.1

20.9

13.9

3.6

-10.0

-22.9

-24.0

-24.3

-25.1

-25.7

-26.5

-28.7

-30.5

-22.1

30.7

-5.0

-10.4

-20.3

-24.1

-27.5

-52.8

-123.7

177.2

===================================================================

Available as: QBH-842, 4 Pin TO-8 (T4)

10

14

13

11

Gain (dB)

Reverse Isolation (dB)

1 dB Comp. (dBm)

Input/Output VSWR +25 ºC

3rd order intermodulation distortion (dBm)

12

15

-70

-20

-40

-60

-50

-30

-10

10

100

1000

MHz

10

100

1000

MHz

24

29

26

25

27

10

100

1000

MHz

1.8

1.4

1.2

1.6

2.0

10

100

1000

MHz

44

40

36

38

46

42

10

100

1000

MHz

5.5

4.0

6.0

5.0

Noise Figure (dB)

10

100

1000

MHz

4.5

1.0

Input

Output

6.5

28

Spectrum Microwave · 2144 Franklin Drive N.E. · Palm Bay, Florida 32905 · PH (888) 553-7531 · Fax (888) 553-7532

Spectrum Microwave (Europe) · 2707 Black Lake Place · Philadelphia, Pa. 19154 · PH (215) 464-4000 · Fax (215) 464-4001

www.SpectrumMicrowave.com