RTL8111E is a widely used Gigabit Phy. I share its application reference circuit and hope it can help everyone!
Taxi meter documentation, very
useful2
RL-SM02BD-8723BS is a high-performance wifi bluetooth two-in-one module with integrated applications on many platforms. For some engineers who have just taken over, they are very interested in how to design the peripheral circuit of the module. Therefore, I share this design circuit, hoping to be helpful. At the same time, I remind you that there is an upgraded version of RL-SM12BD-8723DS, which is hardware compatible. You only need to change the software driver on the platform to support BT4.1
RL-SMO2BD-8723BS Reference Circuit.pdf
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Multifunctional Telephone Conference System and Video Conference Design Solution Reference
The solution is designed to address the high cost and single function of the current telephone conference system on the market. The low-cost, versatile USB sound card plus echo cancellation chip solution can not only be used for telephone conferences on computers and mobile phones, but can also be directly used for video conference calls when connected to any Android box or Android TV. The design uses a USB sound card chip model HXJ6148 and an echo cancellation chip model ATH8809. The HXJ6148 sound card chip is powerful and can not only be used on computers, but can also directly replace the sound card driver of the Android system, so that the product is not limited to telephone conference systems, but can also be plugged into any Android TV to become a video conference system. The ATH8809 echo cancellation chip can eliminate the echo and howling caused by the speaker sound entering the MIC during hands-free calls. This chip can not only eliminate echoes up to 70db, but also eliminate environmental noise of about 25db, thereby ensuring that the call is not disturbed by the environment and improving the call quality.
Conference system design plan.pdf
ATH8809-P_Datasheet.pdf
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ARG008A Application Principle Reference
ARG008A is a high-performance 2.4G power amplifier, which is widely used in the field of wifi amplification.
ARG008A Application Principle Reference.pdf
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Huawei RF Basic Knowledge Training
RF Basics Course, for reference only
RF Basics Training.pdf
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electronic