Part Number: QBS-559 Broadband 50 Watt GaN Power Amplifier 20 to 800 MHz high power, class AB design utilizing GaN technology Features *Similar Model • 65 Watts Typical Saturated Output Power • Rugged GaN Technology • Adaptive Biasing to Promote Efficiency • Optional Forward/Reverse Power Detection • Blanking Feature Available • Microprocessor Based Control o Fault Monitoring o Temperature Compensation o Sequencing o Interface Options API Technologies’ Model QBS-559 is a high power, class AB solid state amplifier which utilizes the latest GaN technology to offer broadband performance from 20 to 800 MHz. The RFPA has an integrated, high efficiency DC to DC converter to promote operation over a wide DC input voltage range of +25 to +32 VDC; drawing 5.1 amps with a saturated gain of 41 dB, and a typical output power of 65 watts. The microprocessor based design incorporates an adaptive biasing algorithm to optimize efficiency and output power across the frequency band under varying load conditions. This rugged, high reliability GaN based amplifier is capable of performing in adverse commercial and military environments with EMI and moisture sealing, and will not be damaged operating into a 10:1 load mismatch at full rated power. Optional RF blanking controlled through an LVDS signal, and forward/reverse power detection are available upon request. Technical Specifications (25°C) (1) Parameter Maximum Ratings Typical Min / Max 20 - 800 MHz 20 - 700 MHz Linear Gain 47 dB ─ PSAT Gain (2) 41 dB ─ Output Power @ PSAT 65 W 50 W Min. Power Flatness @ PSAT ± 0.75 dB ± 1.0 dB Max. Power Over Temp. @ PSAT ± 1.0 dB ─ Input VSWR 1.2 :1 1.5 :1 Max. Noise Figure 7 dB 10 dB Max. 2nd Harmonic @ PSAT -20 dBc ─ 3rd Harmonic @ PSAT -11 dBc ─ Spurious Signals (non-harmonic) < -70 dBc ─ DC Supply Voltage +28 Volts +25 to +32 Volts 700 mA ─ 5.1 Amps 5.1 Amps 5 µs 10 µs Frequency Range Current Draw (Quiescent) Current Draw @ PSAT Switching Time ON/OFF Package Dimensions (3) 7.98(L) x 4.59(W) x 1.55(H) inches Material Finish Storage Temperature -45°C to +100°C Operating Temperature (Case) -20°C to +80°C DC Input Voltage +32 VDC RF Input Power +23 dBm Protection VSWR Tolerance 10 :1 Case Shut Off Temperature +85°C Notes: 1. Specifications are based on measured performance in a 50Ω system. 2. With a nominal input power of +7 dBm. 3. Switching time pertains to an optional blanking function controlled by an LVDS signal. 6061-T6 Aluminum Alloy Clear Iridite (MIL-DTL-5541F, Class 3) Weight (no heatsink) RF Connectors 2.5 lbs (1134 grams) SMA Female (4-Hole Flange) DC Interface Connector 15 Pin D-Sub Plug Rev Date: 5/8/2014 © API Technologies Corp. Proprietary Information Page # 1 | www.apitech.com | micro.apitech.com | +1.888.553.7531 | [email protected] Part Number: QBS-559 Outline Drawing DC Power / Interface (Refer to Detail A) D-SUB Pin Designations Pin # Signal Pin # Signal 1 28V 9 28V RTN 2 28V 10 28V RTN 3 28V 11 28V RTN 4 N/C 12 N/C 5 RESERVED 13 RESERVED 6 N/C 14 BLANKING (-) 7 BLANKING (+) 15 Chassis GND 8 Chassis GND Rev Date: 5/8/2014 © API Technologies Corp. Proprietary Information Page # 2 | www.apitech.com | micro.apitech.com | +1.888.553.7531 | [email protected]