57. What is the requirement for phase noise at 1k offset , 10kHz offset, and 100kHzoffset for GSM handset?A: For GSM handset RX it has several architectures to implement:Superheterodyne,near zero-IF,z
After a month, during the May Day holiday, I came back and picked up RVB2601 again. This time I mainly referred to sipower's post and quickly connected it to Alibaba Cloud.
1. The first step is to reg
Our company is going to make washing machines, and the DC brushless motors do not have Hall.I haven't tried it before. I bought a motor development board and the dead zone in the program is 1.84us.
Th
[size=4]What is 6-mode? [/size] [size=4] [/size] [size=4] 6-mode supports six different communication modes: TD-LTE, FDD-LTE, TD-SCDMA, EVDO&CDMA, WCDMA, and GSM. [/size] [size=4] [/size] [size=4]The
TPS61165 can realize LED dimming, the main method is PWM dimming. However, when using this chip, even if the circuit is made according to the official manual, the more common problem is the flickering