Product Info

LTE Module Series
EG91 Hardware Design
EG91_Hardware_Design 19 / 93
Protocol: NMEA 0183
AT Commands
Compliant with 3GPP TS 27.007, 27.005 and Quectel enhanced AT
commands
Network Indication NETLIGHTpin for network activitystatusindication
Antenna Interfaces
Including main antenna interface (ANT_MAIN), Rx-diversity antenna
(ANT_DIV) interface and GNSS antenna interface(ANT_GNSS)
1)
Physical Characteristics
Size: (29.0±0.15)mm × (25.0±0.15)mm × (2.3±0.2)mm
Package: LGA
Weight: approx. 3.8g
Temperature Range
Operation temperature range: -35°C ~ +75°C
2)
Extended temperature range: -40°C ~ +85°C
3)
Storage temperature range: -40°C ~ +90°C
Firmware Upgrade USB interface orDFOTA*
RoHS All hardware components are fully compliant with EU RoHS directive
1.
1)
GNSS antenna interface is only supported on EG91-NA/-NS/-V/-EC.
2.
2)
Within operationtemperature range, the module is 3GPP compliant.
3.
3)
Within extended temperature range, the module remains the ability to establish and maintain a
voice, SMS, data transmission, emergency call, etc. There is no unrecoverable malfunction. There
are also no effects on radio spectrum and no harm to radio network. Only one or more parameters
like P
out
might reduce in their value and exceed the specified tolerances. When the temperature
returns to normal operationtemperature levels, the module will meet 3GPP specificationsagain.
4. “*” means under development.
2.3. Functional Diagram
The following figure shows a block diagram of EG91 and illustrates the major functional parts.
 Power management
 Baseband
 DDR+NAND flash
 Radio frequency
 Peripheral interfaces
NOTES