FM8638概述：
The FM8638 is a CMOS silicon-on-insulator (SOI), single-pole, triple-throw (SP3T) transmitting and receiving switch. The high linearity performance and low insertion loss makes the device an ideal choice for GSM/WCDMA/LTE handset and data card applications.
The FM8638 SP3T switch is provided in a compact QFN 9-pin 1.15mm x 1.15mm x 0.45mm package. A functional block diagram is shown in Figure 1. The pin configuration and package are shown in Figure 2. Signal pin assignments and functional pin descriptions are provided in Table 1.
The FM8638 SP3T switch is provided in a compact QFN 9-pin 1.15mm x 1.15mm x 0.45mm package. A functional block diagram is shown in Figure 1. The pin configuration and package are shown in Figure 2. Signal pin assignments and functional pin descriptions are provided in Table 1.
FM8638特性：
Broadband frequency range: 0.1 to 3.0 GHz
Low insertion: 0.50 dB @ 2.7 GHz
High isolation: 25 dB up to 2.7 GHz
P0.1dB of 36dBm
No external DC blocking capacitors required
Positive low voltage control: VC = 1.6 to 3.00 V, VDD = 2.5 to 3.0 V
Small, QFN (9-pin, 1.1mm x 1.1mm x 0.5mm) package
FM8638应用：
GSM/WCDMA/LTE receive and transmit
802.11b/g/n WLANs
FM8638功能框图及引脚俯视图：
FM8638应用示意图：
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