论文部分内容阅读
V998是一款小巧的全中文双频手机。自推出以来,赢得了广大用户的青睐。现将其信号流程介绍如下: 1.接收信号 V998接收信号流程如图1所示。 天线将900MHz或1800MHz信号接收下来后,送到天线开关(U101)第10脚,GSM9OOMHz接收射频信号从U1O1第5脚输
V998 is a compact full Chinese dual-band mobile phone. Since its launch, won the majority of users of all ages. Now the signal process described below: 1. Receive signal V998 receive signal flow shown in Figure 1. Antenna 900MHz or 1800MHz signal received down, to the antenna switch (U101) pin 10, GSM9OOMHz RF signal received from the U1O1 pin 5