ADCA3280 Datasheet | Analog Devices

FEATURES - Excellent linearity for TCP up to 75 d Bm V - Power gain: 22.7 d B at 1794 MHz - S11: <- 17 d B from 108 MHz to 1794 MHz - S22: <- 19 d B from 108 MHz to 1794 MHz - Flexible supply voltage range: 24 V to 18 V - Adjustable supply current: 570 m A to 450 m A - Internal precision voltage reference to improve current stability over process and temperature - Internal temperature monitor - Industry standard, 9-terminal, 9 mm x 8 mm LGA_CAV, surface- mounted package - Excellent thermal conductivity APPLICATIONS - 258 MHz to 1794 MHz extended spectrum CATV infrastructure amplifier systems - 108 MHz to 1218 MHz CATV infrastructure amplifier systems - Remote nodes - DOCSIS 3.1 and 4.0 pliant FUNCTIONAL BLOCK DIAGRAM Figure 1. Functional Block Diagram GENERAL DESCRIPTION The ADCA3280 is a power doubler with 22.7 d B of power gain at 1794 MHz designed for operation in 24 V applications. The amplifier can also be operated with a lower supply voltage, providing superior efficiency as seen in Figure 10, Figure 17, and Figure 20. The device achieves high RF output up to 75 d Bm V total posite power (TCP) with excellent noise power ratio (NPR), or equivalently modulation error ratio (MER), with channel loading to 1.8 GHz as well as 1.2 GHz, making it an ideal output stage device for DOCSIS 4.0 as well as DOCSIS 3.1 equipment. The DC current and supply voltage can be adjusted externally for optimum distortion performance vs. power consumption over a range of output levels. The ADCA3280 provides high performance, simplifying the design and manufacturing of DOCSIS 3.1 and DOCSIS 4.0 infrastructure equipment. The ADCA3280 is packaged in an industry standard 9-terminal, 9 mm x 8 mm LGA package. Rev. A DOCUMENT FEEDBACK TECHNICAL SUPPORT Information furnished by Analog Devices is believed to be accurate and reliable "as is". However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its...