产品描述：GM552A车规级车载模组
GM552A系列无线通讯模组支持LTE Cat.4，可以提供zui大50Mbps上行速率和150Mbps下行速率，并支持切换到3G或2G网络。
该模组支持分集接收。分集接收能够通过双天线提高无线连接通讯质量和通讯可靠性。
产品亮点：GM552A车规级车载模组
LGA Form Factor
GNSS
Rx diversity
LTE FDD & LTE TDD
TD-SCDMA & WCDMA & EVDO
CDMA 1x & GSM
LTE FDD: DL 150Mbps / UL 50Mbps
4-wires UART
USB 2.0
WeFOTA
-40℃ ~ 85 ℃
Auto suspend & remote wakeup
基本属性
* LGA Form Factor (199pins)
* Dimensions: 34mm × 36mm × 2.8mm
* Weight: 7.6g
* Frequency Band :
-LTE FDD/LTE TDD/WCDMA/TD-SCDMA/GSM/CDMA EVDO/CDMA 1x
* GNSS: GPS/Beidou/GLONASS/Galileo
电气及灵敏度
* Transmit Power:
--3.4V ~ 4.2V (3.8V is recommended)
* Power Supply :
--LTE: 23 ±2.7dBm (Power Class 3)
--WCDMA: 24 +1/-3dBm (Power Class 3)
--TD-SCDMA: 24 +1/-3dBm
--GSM900: 33±2dBm (Power Class 4)
--GSM1800: 30±2dBm (Power Class 1)
--CDMA: 24 ±1dBm @ All up bits
* Receiving sensitivity:
--Rx Diversity
--Exceed 3GPP standard
环境适应性
* Operation temperature: -30°C to +75°C
* Extreme Operating temperature: -40°C to +85°C
* Storage temperature: -40°C to +85°C
* Humidity: 5%~ 95%
频段信息：PID--Band
* For China
--LTE FDD: B1/B3/B5/B8
--LTE TDD: B38/B39/B40/B41
--UMTS: B1/B8
--TDSCDMA: B34/B39
--CDMA: BC0
--GSM: 900/1800 MHz
* For Europe
--LTE FDD: B1/B3/B7/B8/B20/B28
--LTE TDD:B38(B40/B41)
--UMTS: B1/B5/B8
--GSM: B2/B3/B8
数据特性
* LTE FDD
--Uplink 50Mbps / Downlink 150 Mbps
* TD-LTE
--Uplink 30Mbps / Downlink 112Mbps
* WCDMA
--Cat.4: Uplink30Mbps / Downlink 130Mbps
* WCDMA
--Uplink 5.76Mbps / Downlink 42Mbps
* TD-SCDMA
--Uplink 2.2Mbps / Downlink 2.8Mbps
* EDGE (Multi-slot Class 12)
--Uplink 236.8 kbps / Downlink 236.8 kbps
* GPRS (Multi-slot Class 10)
--Uplink 85.6 kbps / Downlink 85.6 kbps
* CDMA2000 EVDO
--Uplink 1.8Mbps / Downlink 3.1Mbps
* CDMA2000 1X
--Uplink 153.6 kbps / Downlink 153.6 kbps
应用功能
* Support WelinkOpen?
* Support Multi-APN
* Support TCP/UDP/PPP/FTP/HTTP/HTTPS/SSL/TLS/SMS protocols
* USB Selective Suspend & Remote wakeup
* Update via USB/UART/FOTA
* RAS/ECM/NDIS
* AT Commands according to 3GPP TS27.005, 27.007 and GOSUNCN extended AT commands
* RTK & DR*
短信特性
* Support Text and PDU mode
* Point to point MO and MT
* SMS Status Report
* SMS center address setting
* Management of SMS
驱动&工具
* Drivers
--Windows XP, Vista, 7 , 8, Win CE, Windows M o b i l e
--Linux 2.6.20 or above
--Android 4.x/5.x/6.x/7.x/8.x
* Diag-log Tool
* Firmware Update Tool
模组接口
* USB 2.0 ×1 (High speed up to 480Mbps)
* UART ×4
* SIM × 2(1.8/3.0V)
* SPI ×1
* SDIO ×2(wifi/emmc)
* I2C ×1
* LED ×2
* RGMII*
* PCM*
* ADC ×3(15 bits)
* GPIO >15
* Antenna (RF pads for Main, Diversity and GNSS)
* Reset & Power-on
* WAKE-IN & WAKE-OUT
