PCBA scheme of digital intercom module

PCBA scheme of digital intercom module

Development of digital intercom module for three defense mobile phone

Development of DMR module scheme of three defense mobile phone intercom, building intercom, Tianyi intercom and digital intercom

PCBA scheme of DMR digital interphone module interacting with moto hytera cluster

Low cost digital analog intercom module overall DMR solution

1. Three prevention mobile phone digital intercom module (based on hr_c3000 chip)

It is a digital intercom module adopting DMR standard, which supports simplex voice and confirmed / unconfirmed data short message communication. This module has built-in high-performance RF transceiver chip, RF power amplifier and DMR digital intercom chip. External MCU can set the working parameters of the module and control the working state of the module through standard asynchronous serial communication. The module only needs external antenna, microphone and voice power amplifier to form a complete DMR digital walkie talkie.

Application field: Three Prevention smart phone / miniaturized digital interphone / mobile digital interphone system

2. Building intercom full duplex DMR digital intercom module (based on hr_c5000 chip)

Based on HR_ C5000 chip for digital analog compatibility design; Compatible with digital TDMA, DMR digital mode and FM analog mode. It supports voice and data services in DMR direct and relay mode, supporting full duplex, data simultaneous interpreting and other functions. In terms of simulation, it supports sub tone signaling such as CTCSS and cdcss, and supports 12.5khz analog voice communication; Be able to communicate with moto / Haoyitong DMR walkie talkie.

Application field: building intercom / digital intercom system / digital intercom

3. Overall scheme development of digital intercom (based on hr_c5000 or hr_c3000 chip)

Based on HR_ C5000 or HR_ C3000 chip provides digital interphone PCBA board or module according to the functional requirements of customers, supports the compatible design of digital and analog interphone, and supports the interworking with moto and hytera,

Better and reasonable cluster networking applications, reduce costs and have more competitive advantages.

4. Low cost and minimum Integrated Analog Mobile Phone Intercom module

The company independently developed and designed a single-chip interphone solution. Integrate all traditional discrete component schemes into a small module. The module fully integrates all functions of the walkie talkie, with built-in high-performance RF transceiver chip, microprocessor (MCU), RF power amplifier (PA), etc. The module has the advantages of small volume, high integration, stable performance and flexible application, and meets the walkie talkie standards of most countries in the world. It is widely used in any mobile handheld products, such as three prevention smart phones, wireless intercom, paging system, smart home, industrial data acquisition and other fields.