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FEATURE
◆ Integrated PA, SW, BPF and BAL
◆ In/out port impedance 50Ω matching and 100Ω differential output port in TX path
◆ 3.3 V single supply voltage
◆ 16 dBm linear output power under 3% EVM 802.11g 54Mbps.
◆ 2.6 dB insertion loss & 23 dBc high out of band suppression at 1.9 GHz in RX & BT path
◆ 4 X 4 X 0.9 mm VQFN package
◆ Lead(Pb) free, RoHS compliant
APPLICATION
◆ IEEE 802.11 b/g/n Wireless LAN System
◆ 2.4 GHz ISM Band Application
◆ Mobile Handset System Application
◆ Cardbus, miniPCI, PCIe, AP Application
DESCRIPTION
The RTC6643H is a RF front-end module (FEM) designed for 802.11b/g/n WLAN applications using Richwave advanced FEDTM technology. This device consists of a power amplifier (PA), a SP3T switch (SW), a band pass filter (BPF), and a balun (BAL). The module is designed to operate in 2.4 GHz ISM band, compatible with 802.11 b/g/n wireless LAN system with low loss and large output power. All inputs and outputs are internally matched to 50Ω and the WLAN transmitted terminal is a differential port with impedance of 100Ω. In the transmitting path, the FEM has a typical gain of 24 dB from 2.4GHz to 2.5GHz, and delivers 16 dBm typical output power under 3% EVM OFDM 54Mbps modulation. In the transmitting path, the FEM possesses 29 dBc high out-band suppression at 1.9GHz and thus suitable for mobile handset application. In the receiving and BT paths, the typical insertion loss is 2.6 dB and the out-of-band suppression is 23 dBc at 1.9 GHz. These features make RTC6643H FEM very useful in various applications, such as hand-held device and battery-powered WLAN equipment. The RTC6643H is packaged in a tiny industry-standard 16-lead surface mount package VQFN 4 X 4 mm2 with lead-free RoHS compliant.