Issue link: https://resources.mouser.com/i/1207833
Qorvo QPA5219 2.4GHz Wi-Fi Power Amplifier 802.11g/n/ac Key Features: • Pout = 24dBm MCS8/9 11ac VHT20/40 -35dB Dynamic EVM • 32dB Tx Gain • Optimized for +5V operation and 3.3V capable 9 As we've discussed, it's getting access to the home with 1Gbps that is the current challenge. Although the first rollout of 10Gbps DOCSIS 3.1 has started, most people are still working with 100Mbps or less. This means that at this moment there is clearly overcapacity with all the infrastructure inside the building and the end nodes raw data rates today exceeding 1Gbps. Approaching This from The Other Side We can also ask the reverse question: When does 7Gbps with 802.11ad in the phone or in a tablet start making sense? Well probably if the in-home infrastructure can handle 15-20Gbps and the access to the home is 30-50Gbps. Well… that probably is going to take a while, unfortunately…. Currently fiber to the home (FTTH) is advertised at 1Gbps for DOCSIS 3.0. The next-generation DOCSIS 3.1 full duplex (FD) promises 10Gbps (in 2020?), so—we are getting up there, but there are no plans yet beyond this. Also, for distributed Wi-Fi in Practical Solution (1 Gb/s – 500 Mb/s – 100 Mb/s) ©2018 Qorvo, Inc. 500 Mb/s 100 Mb/s 1 Gb/s 100 Gb/s 100 Mb/s 100 Mb/s The Future? (30 Gb/s – 15 Gb/s – 7 Gb/s) ©2018 Qorvo, Inc. 15 Gb/s 7 Gb/s 30 Gb/s 100 Gb/s 7 Gb/s 7 Gb/s What Needs to Happen? With all this in mind, let's circle back to the problem of the disrupted hierarchy. What needs to be done to restore balance? Because until this problem is solved, it will be very hard to justify advancements on in-home data rates. So, let's give this a closer look, because now the usage pattern in the home becomes relevant: how many people are living in the home, how many rooms (floors) does your home have, how many devices are used simultaneously per user, etc. Let's take an example of a family of four. Internet radio is playing in one room, mom is having a video conference in another room, dad is downloading a large report on his computer, the son is playing a video game, and the daughter is watching YouTube on her phone while a movie streams on the TV. This family would be very happy with 1Gbps to the home, a 500Mbps distribution system in the home, and 100Mbps speed access from the end device to the access point, as shown below: Key Features: • Pout = +17.5dBm MCS9 .11ac VHT80 at -35dB Dynamic EVM • Low power consumption approx. 0.5W • Integrated DC power detector Qorvo QPF4538 5GHz Wi-Fi Front End Module 802.11a/n/ac