CHARACTERISTIC

TYPICAL

MIN/MAX

Ta= 25 ºC

Ta = -40 ºC to +85 ºC

Frequency

2 - 6 GHz

2 - 6 GHz

Supply Power VDC

24

24

mA (quiescent)

225

350 Max.

POWER AMPLIFIER

MODEL

QB-910

Gain (dB)

27

+ 2.0

Gain Variation Over

Temperature (dB)

2.0 Max.

Output Power (dBm)

+27

+25 Min.

Specifications

Features

!

!

!

!

! High Gain: 27 dB Typical

!

!

!

!

! High Output Power: +27 dBm Typical

!

!

!

!

! Operating Temperature: -40 ºC to +85 ºC

!

!

!

!

! Environmental Screening Available

Input Return Loss (dB)

10

9 Min.

Description

The QB-910 is a class AB amplifier operating

over the 2 to 6 GHz frequency range. Operating

over a DC input voltage range of +23 to +28 Vdc,

the QB-910 provides 27 dB small signal gain.

Output power of +27 dBm (typical) is provided

over the 2 to 6 GHz frequency band. Typical

current drawn from a 24 V supply at +27 dBm

output power is 250 mA.

The QB-910 is packaged in a hermetically sealed

housing and is available with field replaceable

SMA connectors, or 0.015” gold-plated pins for

through-board mount. An optional heat sink is

available when using the unit in a bench testing

environment.

Spectrum Microwave, Inc.

2144 Franklin Drive N.E. Palm Bay, FL 32905

www.SpectrumMicrowave.com

PH: 866-553-7531 FAX: 888-553-7532

Rev.

6/5/09

Maximum Ratings

Operating Temperature ..................... -40 ºC to +85 ºC

Storage Temperature ................... -65 ºC to + +175 ºC

DC Voltage at 25 ºC ..................................... +32 VDC

Input Drive at 25 ºC ...................................... +20 dBm

Typical Performance Data

Reverse

Isolation (dB)

40

36 Min.

Output Return Loss (dB)

8

7 Min.

NOTE: Adequate heat relief must be used when operating this amplifier.

Customer must use either a Spectrum Microwave heat sink or mount onto

either a copper bus bar or thermal plate to remove excess heat.

Gain Flatness (dB)

+ 2.0

+ 3.0