Have you ever made a 3G-4G low-noise NPLL frequency synthesizer? The output spurious signal should be small and continuously adjustable. Please provide a solution....
Today I upgraded the Lierda LSD-S2E21-01_V1.0 serial-to-Ethernet board online, but it can't connect to Ethernet. After recompiling the boot_eth program and ser2enet program on the CD correctly, the tw...
What are the serial-to-parallel chips with a speed of 18MHz or above? SN74AHC595 is relatively fast, produced by TI, and is damn expensive. [url]http://www.ti.com.cn/product/cn/SN74AHC595[/url] Are th...