Functional Diagram - Quectel UC20 Hardware Design

GNSS Features
AT Commands
Real Time Clock
Network Indication
Antenna Interface
Physical Characteristics
Temperature Range
Firmware Upgrade
RoHS
NOTE
2)
. When the module works within this restricted temperature range, RF performance might degrade. For
example, the frequency error or the phase error would increase.

2.3. Functional Diagram

The following figure shows a block diagram of UC20 and illustrates the major functional parts.

Power management

Baseband

DDR+NAND flash

Radio frequency

Peripheral interface
--UART interface
--USIM card interface
--USB interface
--PCM interface
--ADC interface
--Status indication
--Control interface
UC20_Hardware_Design
Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com.
Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from
Gen8 of Qualcomm GNSS engine (GPS and GLONASS)
Protocol: NMEA 0183
Compliant with 3GPP TS 27.007, 27.005 and Quectel enhanced AT
commands.
Implemented
Two pins including NET_MODE and NET_STATUS to indicate
network connectivity status.
Include main GSM/UMTS antenna, UMTS diversity antenna and
GNSS antenna.
Size: 32.0± 0.15 × 29.0± 0.15 × 2.5± 0.2mm
Weight: approx. 4.9g
Normal operation: -35° C ~ +75° C
Restricted operation: -40° C ~ -35° C and +75° C ~ +85° C
Storage temperature: -45° C ~ +90° C
USB interface (by default) or main UART interface.
All hardware components are fully compliant with EU RoHS directive.
Confidential / Released
UMTS/HSPA Module Series
UC20 Hardware Design
2)
14 / 82