QBS-598 Datasheet, PDF (1/2 Pages) API Delevan – Broadband 100 Watt GaN Power Amplifier 30 to 512 MHz High Power, Class AB Design for Military Communications

Part Number: QBS-598
Broadband 100 Watt GaN Power Amplifier
30 to 512 MHz High Power, Class AB Design for Military Communications
Features
• 100 Watts Typical Output Power @ P1dB
• Push-Pull Configuration
• Microprocessor Based Control
• Integrated Heat Sink
• Lightweight Package; 1.25 lbs. Max
API Technologies’ Model QBS-598 is a high power, class AB amplifier utilizing the latest GaN technology to offer broadband
performance from 30 to 512 MHz in support of critical communication requirements for both commercial and military
applications. The two stage push-pull design incorporates a microprocessor, and a high efficiency DC to DC converter to
promote operation over a wide DC input voltage range of +22 to +32 VDC. Over this power supply window, the amplifier draws
9 amps at rated output power for 1dB compression, which is typically 100W, and has a saturated gain of approximately 30 dB.
The integrated microprocessor allows for power supply sequencing, transistor bias optimization, temperature compensation,
and fault monitoring. This rugged, high reliability GaN based amplifier is configured in a lightweight aluminum housing with an
integrated heat sink. It is capable of performing in adverse environments and will not be damaged operating into a 10:1 load
mismatch at full rated power.
Technical Specifications ⁽¹⁾
Parameter
Unit
Frequency Range
MHz
Power Gain ⁽²⁾
dB
Input Return Loss
dB
Noise Figure
dB
P_OUT @ 1dB Compression dBm
P_OUT @ 3dB Compression dBm
2^nd Harmonic ⁽²⁾
dBc
3^rd Harmonic ⁽²⁾
dBc
Spurious Signals
dBc
DC Voltage
Vdc
DC Current (Quiescent)
A
DC Current @ P_OUT = 80W A
PA Enable
TTL
PA Enable Switching Time µsec
Typical
25°C
Min/Max
-40°C to +55°C
30 - 512
30 - 512
32
29 min.
-17
-10 min.
6.0
7.5 max.
+50
+49 min.
+51
+50 min.
-17
-15 max.
-11
-10 max.
< -70
—
+28
+22 to +32
0.6
1.5 max.
9.0
10.0 max.
Logic 1: Active / Logic 0: Current < 0.25A
—
20
Mechanical Specifications
Parameter
Package (non-hermetic)
Finish
RF In / Out Connectors
DC/CTRL Connector
Specification
API Dwg: 080-25517
Clear Iridite
SMA Female
15 Pin D-Sub (Male)
Comments
6061-T6 Al Alloy
MIL-DTL-5541F, Class 3
4-Hole Flange Mount
Standard Density
Absolute Maximum Ratings
Parameter
Specification
DC Voltage
RF Input Power
Operating Case
Temperature ⁽³⁾
Storage Temperature
+32.0 Vdc
+27 dBm
- 40^oC to +70^oC
- 55^oC to +125^oC
Notes:
1. Specification ratings are based on
measurements in a 50 ohm system at a
nominal DC power of +28 V.
2. P_OUT = 80W
3. Maximum Operating Case Temperature is
defined as the baseplate temperature
which, if exceeded for extended periods,
could result in premature unit failure.
This data is provided for user reliability
information. This may or may not
represent the maximum temperature for
electrical parameter specifications.
Rev Date: 5/9/2014
Page # 1
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