DM229 Beidou-III short message communication module

DM229

DM229Beidou-IIIshortmessagecommunicationmodule(hereinafterreferredtoas"DM229module")isaBeidou-IIIshortmessagecommunicationmoduledevelopedbasedonthe"Dolphin-III"basebandchipindependentlydesignedbyChangshaJinwei.ItcanachieveBeidou-IIIregionalshortmessagecommunicationandiscompatiblewiththeRDSScommunicationfunctionofBeidou-2.ThemoduleintegratesLNA,RDSSRFtransceiverchip,3Wpoweramplifier,Beidou-IIIdedica..

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Product features

Fully support the regional short message application of the Beidou-3 system
Supports 1000-character communication Passed the network test verification Complies with the Beidou transmission power requirements
Strong anti-interference capability
It has the function of suppressing adjacent-frequency signal interference such as WIFI, Bluetooth and 4G, resulting in more stable performance.
High-integration ultra-small-sized packaging
Built-in LNA and PA, with an ultra-small size of 20mm×20mm, suitable for various portable devices
Technically stable, with mature processes
The related technology has been verified by numerous customers in various environments across the industry, and its performance is more reliable.

Technical Index

performance index	Performance of RDSS	Receiving frequency point	Receive the outgoing signals from S1I and S2C, with the frequency range: 2491.75 MHz ± 8.16 MHz
		Receive sensitivity	S1I: When the signal power is -127.6 dBm, the bit error rate is: ≤ 1×10-5
			S2C: 24kbps information frame, bit error rate: ≤ 1×10-5 (signal power - 123.8 dBm)
			S2C: 16kbps information frame, bit error rate: ≤ 1×10-5 (signal power - 127.5 dBm)
			S2C: 8kbps information frame, bit error rate: ≤ 1×10-5 (signal power - 130dBm)
		Number of receiving beams	Beidou-2: 10; Beidou-3: 14
		First capture time	≤2s
		Transmitting frequency point	Lf0 ：1615.68 MHz±4.08MHz
			Lf1 ：1614.26 MHz±4.08MHz
			Lf2 ：1618.34 MHz±4.08MHz
		Transmitted power	4dBW~5dBW（3W power amplifier）
		Accuracy of transmission frequency	≤5×10^-7
		Phase error of transmitted signal modulation	≤3°
		Short message communication capacity	The maximum length of a single message for Beidou-2 is 120 Chinese characters.
			The maximum length of the regional message for Beidou-3 is 1,000 Chinese characters.
	Power characteristics	Receiving working voltage: +3.3V ± 0.2V
		Power amplifier operating voltage: +3.6V to +3.8V
	Power dissipation	Operating power consumption: ≤ 160mA @ +3.3V
		Power consumption during launch: ≤ 3A @ 3.7V
physical property	Structure size		20mm×20mm×3.3mm（±0.2mm）
	Encapsulation mode		SMD Postmark hole口
	Weight		≤3.5g
environmental index	Operating temperature		-40℃~+85℃
	Storage temperature		-40℃~+85℃