Legend

+ 25 ºC

+ 85 ºC - - - - - - -55 ºC

RF AMPLIFIER

MODEL

QBH-250

Specifications

Maximum Ratings

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

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

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

DC Voltage ......................................................... + 20 Volts

Continuous RF Input Power ................................. + 13 dBm

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

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

µsec Max.)

Features

!

!

!

!

! High Gain: 20.0 dB Typical

!

!

!

!

! High Power: +18 dBm Typical

!

!

!

!

! Environmental Screening Available

CHARACTERISTIC

TYPICAL

MIN/MAX

Ta= 25 ºC

Frequency

10 - 300 MHz

Power

Vdc

+15

mA

51

Noise Figure (dB)

3.5

VSWR

In

1.5:1

Out

2.0:1

Reverse Isolation (dB)

-23

Gain (dB)

20.0

Gain Flatness

1.0

Output Intercept point

3rd Order

+30

2nd Order

+41

Gain vs. Temperature

1 dB Compression (dBm)

+18

± 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

60

70

90

100

200

250

300

-15.8

-19.1

-19.3

-19.6

-19.7

-19.8

-19.6

-18.0

-15.9

-120.1

-167.6

-178.2

177.8

170.0

168.3

145.9

139.0

128.4

19.8

20.1

20.1

20.1

20.1

20.1

20.3

20.3

20.3

-168.7

169.2

160.6

156.5

148.5

144.7

105.9

85.8

65.2

-45.2

-42.5

-41.0

-40.3

-38.7

-38.1

-33.0

-31.1

-29.6

76.5

44.6

43.0

41.6

40.3

39.9

22.1

10.0

-3.4

-16.2

-23.5

-23.7

-23.3

-22.1

-21.4

-15.1

-12.4

-10.2

145.1

168.6

-173.0

-166.3

-157.8

-155.5

-161.1

-173.1

172.4

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

Available as: QBH-250, F-Pack (E52-5006)

16

20

19

17

Gain (dB)

Reverse Isolation (dB)

1 dB Comp. (dBm)

Input/Output VSWR +25 ºC

3rd order intermodulation distortion (dBm)

18

21

-70

-20

-40

-60

-50

-30

-10

10

100

1000

MHz

10

100

1000

MHz

12

22

18

14

16

20

10

100

1000

MHz

1.8

1.4

1.2

1.6

2.0

10

100

1000

MHz

34

30

26

28

36

32

10

100

1000

MHz

3.5

2.0

4.0

3.0

Noise Figure (dB)

10

100

1000

MHz

2.5

1.0

Input

Output

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