Model # QB-904 2.0 – 6.0 GHz, 4 Watt Hybrid Driver Amplifier Features • High Saturated Output Power: 4 Watts • • Class AB Design Rugged GaN Technology • • Broadband Quadrature Configured Small Hermetically Sealed Package • Optional Heat Sink The QB-904 is a class AB amplifier operating over the 2 to 6 GHz frequency range utilizing the latest in GaN die technology. With a wide DC input voltage range of +23 to +28 VDC, the QB-904 provides 38 dB of small signal gain and a saturated output power of +36 dBm, minimum. Typical current draw from a nominal +24 VDC supply at rated output power is <1200 mA. The QB-904 is packaged in a hermetically sealed, copper nickel housing configured with either 0.015” gold-plated pins for a direct launch to a printed circuit board, or optional field replaceable SMA connectors as shown for modular integration. A black anodized heat sink, designed to fit the package and accommodate port connections, is available when using the unit in a standalone or bench testing environment. Technical Specifications Parameter Maximum Ratings Typical Min / Max 2.0 - 6.0 GHz 2.0 – 6.0 GHz 5.0 Watts (+37 dBm) 4 Watts (+36 dBm) Min. PSAT Gain 30 dB − Linear Gain 36 dB 33/40 dB ± 2.0 dB − Input Return Loss 10 dB 9 dB Min. Output Return Loss 12 dB 10 dB Min. Noise Figure 6.5 dB 8.0 dB Max. Reverse Isolation 48 dB 45 dB Min. Spurious Signals < -60 dBc − DC Supply Voltage 24 Volts 23 to 28 Volts DC Current Draw (Quiescent) 500 mA 550 mA Max. Frequency Range Saturated Output Power Gain Flatness Housing Size RF / DC Connectors 1.450" L x 1.00" W x 0.190" H Storage Temp. -55ºC to +125 ºC Operating Case Temp. -55ºC to +90ºC DC Voltage @ 25ºC +32 VDC Input Drive @ 25ºC +13 dBm Notes: 1. Typical values are measured at 25°C, but not guaranteed. 2. Adequate heat transfer / cooling must be provided when operating the amplifier. An optional heat sink is available. 3. Additional Package Options: • QB-904N: Amplifier with field replaceable SMA-F connectors for RF Input / Output and DC Power. • QB-904N-01: Amplifier with SMA-F connectors mounted on a heat sink (picture not shown). • 450-00001-0001: Optional heat sink only. Gold Plated Pins or SMA Female Operating Case Temp. (Min / Max Limits) -40°C to +85°C Rev Date: 11/7/2013 © API Technologies Corp. Proprietary Information Page # 1 | www.apitech.com | micro.apitech.com | +1.888.553.7531 | [email protected] Model # QB-904 Outline Drawing - Model QB-904 Outline Drawing - Model QB-904N Rev Date: 11/7/2013 © API Technologies Corp. Proprietary Information Page # 2 | www.apitech.com | micro.apitech.com | +1.888.553.7531 | [email protected] Model # QB-904 Outline Drawing - Model QB-904N-01 Typical Performance Data Rev Date: 5/27/2015 © API Technologies Corp. Proprietary Information Page # 3 | www.apitech.com | micro.apitech.com | +1.888.553.7531 | [email protected]