本文档详细描述了LM7800 模块的规格、功能,提供了应用设计参考建议,可以帮助您迅速了解模块的接口、电气和机械特性,在短时间内开发出基于LM7800模块的应用产品。
1.1 相关文档
(1) GSM 02.07: Digital cellular telecommunications system (Phase 2+); Mobile Stations (MS)
features
(2) 3GPP TS 04.08: Digital cellular telecommunications system (Phase 2+); Mobile radio
interface layer 3 specification
(3) 3GPP TS 05.08: Digital cellular telecommunications system (Phase 2+); Radio subsystem
link control
(4) 3GPP TS 07.05: Digital cellular telecommunications system (Phase 2+); Use of Data
Terminal Equipment - Data Circuit terminating; Equipment (DTE - DCE) interface for
Short message Service (SMS) and Cell Broadcast Service (CBS)
(5) 3GPP TS 07.07: Digital cellular telecommunications system (Phase 2+); AT Command set
for GSM Mobile Equipment (ME)
(6) 3GPP TS 11.11: Digital cellular telecommunications system (Phase 2+); Specification of
the Subscriber Identity Module - Mobile Equipment (SIM-ME) Interface
(7) ITU-T Recommendation V.24: List of definitions for interchange circuits between data
terminal equipment (DTE) and data circuit-terminating equipment (DCE)
(8) ITU-T Recommendation V.250: Serial asynchronous automatic dialling and control
(9) ITU-T Recommendation V.251: Procedure for DTE-controlled call negotiation
LM7800 模块是采用 LCC+LGA 封装的无线通信模块,支持 GSM /WCDMA/LTE TDD/LTE FDD 制式,可广泛应用于各种产品和设备,为之提供数据服务,如笔记本电脑、车载终端和电力设备等。
主要特性:
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