Quectel LPWA Series, Manual

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LPWA Module Series
BG770A-GL Hardware Design
BG770A-GL_Hardware_Design 15 / 75
With a compact profile of 14.9 mm × 12.9 mm × 1.9 mm, BG770A-GL can meet almost all requirements
for M2M applications such as smart metering, tracking system, security, wireless POS, etc. It is especially
suitable for size and weight sensitive applications such as smart watch and other wearable devices.
BG770A-GL is an SMD type module which can be embedded into applications through its 94 LGA pads. It
supports internet service protocols like TCP, UDP and PPP. Extended AT commands have been
developed for customers to use these internet service protocols easily.
2.2. Key Features
Table 3: Key Features of BG770A-GL
Features Details
Power Supply
1)

VBAT_BB: 2.2–4.35 V, typical 3.3 V

VBAT_RF: 3.1–4.2 V, typical 3.3 V
Transmitting Power Class 3 (23 dBm ± 2.7 dB) for LTE-FDD bands
LTE Features

Supports 3GPP Rel-14*
 Supports LTE Cat M1 and LTE Cat NB2*

Supports 1.4 MHz RF bandwidth for LTE Cat M1
 Supports 200 kHz RF bandwidth for LTE Cat NB2

Cat M1: Max. 600 kbps (DL)/1000 kbps (UL)

Cat NB2*: Max. 120 kbps (DL)/140 kbps (UL)
Internet Protocol
Features

Supports PPP/TCP/UDP/SSL/TLS/FTP(S)/HTTP(S)/NITZ*/PING/
MQTT/LwM2M*/CoAP* protocols

Support PAP and CHAP for PPP connections
SMS
 Text and PDU modes

Point-to-point MO and MT
 SMS cell broadcast

SMS storage: ME by default
(U)SIM Interface Supports 1.8 V USIM/SIM card only
PCM Interface* Supports one digital audio interface: PCM interface for VoLTE only
USB Interface*

Compliant with USB 2.0 specification

Supports operation at full-speed (12 Mbps) only
UART Interfaces
Main UART:
 Used for data transmission and AT command communication

115200 bps baud rate by default

The default frame format is 8N1 (8 data bits, no parity, 1 stop bit)
 Supports RTS and CTS hardware flow control