Legend

+25 ºC

+85 ºC - - - - - - -55 ºC

RF AMPLIFIER

MODEL

QBH-838

Specifications

Maximum Ratings

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

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

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

DC Voltage .......................................................... +16 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: 15.0 dB Typical

!

!

!

!

! High Power: +1.0 dBm Typical

!

!

!

!

! Environmental Screening Available

CHARACTERISTIC

TYPICAL

MIN/MAX

Ta= 25 ºC

Frequency

50 - 500 MHz

Power

Vdc

+15

mA

12

Noise Figure (dB)

1.7

VSWR

In

2.0:1

Out

2.0:1

Reverse Isolation (dB)

-25

Gain (dB)

15.0

Gain Flatness

Output Intercept point

3rd Order

+12

2nd Order

+16

Gain vs. Temperature

1 dB Compression (dBm)

+1.0

± 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

50

80

90

100

200

300

400

500

-16.1

-16.8

-16.8

-16.8

-15.9

-15.6

-15.9

-16.4

-45.3

-34.8

-32.7

-31.4

-43.0

-75.5

-120.6

-179.7

15.0

15.0

15.1

15.1

15.1

15.2

15.2

15.0

172.3

160.8

157.3

154.0

122.0

90.2

57.4

23.3

-33.8

-33.6

-33.5

-33.5

-32.8

-31.7

-30.6

-29.6

7.0

4.6

2.5

3.3

-4.4

-11.3

-22.6

-37.3

-23.6

-23.4

-23.3

-23.2

-22.7

-22.4

-22.5

-22.6

0.1

-9.5

-12.5

-15.4

-40.3

-69.4

-104.8

-150.2

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

Available as: QBH-838, 4 Pin TO-8 Tall (080-22502-0001)

12

16

15

13

Gain (dB)

Reverse Isolation (dB)

1 dB Comp. (dBm)

Input/Output VSWR +25 ºC

3rd order intermodulation distortion (dBm)

14

17

-70

-20

-40

-60

-50

-30

-10

10

100

1000

MHz

10

100

1000

MHz

-2

3

0

-1

1

10

100

1000

MHz

1.8

1.4

1.2

1.6

2.0

10

100

1000

MHz

16

12

8

10

18

14

10

100

1000

MHz

2.5

1.0

3.0

2.0

Noise Figure (dB)

10

100

1000

MHz

1.5

1.0

Input

Output

3.5

2

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

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

www.SpectrumMicrowave.com