smart factory
3.15 Digital intercom
Leiditech recommends protective devices and solutions for digital walkie talkies
Digital walkie talkie is a walkie talkie designed using digital technology. Digital walkie talkies digitize speech signals and propagate them in digital encoding, meaning that all modulation on the transmission frequency of the walkie talkie is digital. Digital walkie talkie generally consists of power management unit, main control unit, voice signal encoding and decoding unit, audio output power amplifier unit, microphone amplifier circuit unit, memory unit and RF unit. Among them, the RF unit includes an antenna, RF front-end, RF transceiver, and baseband processing.
China's walkie talkies are sold to more than 100 countries and regions worldwide. In 2019, the number of imported walkie talkies in China was 610000, a decrease of 120000 compared to the previous year. In 2019, the number of exported walkie talkies in China was 25.86 million, an increase of 90000 compared to the previous year.
Leiditech recommends products for digital walkie talkies:
|
class |
brand |
Product and product overview |
|
ESD Diode |
Leiditech |
For DCDC chips：ESD4521CH package DFN1006 peak working reverse voltage4.5V，Leakage current0.5ua |
|
ESD Diode |
Leiditech |
For USB interface ：SR05 package SOT-143 peak working reverse voltage5V，Leakage current0.5ua |
|
ESD Diode |
Leiditech |
For button control：ESDA05CP package DFN1006peak working reverse voltage5V，Leakage current1ua |
|
ESD Diode |
Leiditech |
For 2.4G wireless SOC chip：ULC0511CDN package DFN1006-2 peak working reverse voltage5V，Leakage current0.5ua |
|
ESD Diode |
Leiditech |
For LCD display ：ECDA3.3CW-4 package SOT-353peak working reverse voltage3.3V，Leakage current0.5ua |
|
ESD Diode |
Leiditech |
For microphone：ULC0511CDN package DFN1006-2 peak working reverse voltage5V，Leakage current0.5ua |
Leiditech can provide various interface electrostatic lightning protection solutions to solve electromagnetic compatibility problems for customers, and provide more protection solutions，Please search for the mini program "EMC Electromagnetic Compatibility Community" on WeChat. Welcome to contact Hu Gong 18016225001.
