Functional Diagram - Quectel SC20-A User Manual

Temperature Range
Firmware Upgrade
RoHS
NOTES
1)
Within operation temperature range, the module is 3GPP compliant.
2)
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 Pout might
reduce in their value and exceed the specified tolerances. When the temperature returns to the normal
operating temperature levels, the module will meet 3GPP compliant again.
* means this feature is under development.

2.3. Functional Diagram

The following figure shows a block diagram of SC20 and illustrates the major functional parts.

Power management

Radio frequency

Baseband

LPDDR3+EMMC flash

Peripheral interface
--USB interface
--USIM interface
--UART interface
--SDIO interface
--I2C interface
--ADC interface
--LCD (MIPI) interface
--TP interface
--CAM (MIPI) interface
--AUDIO interface
SC20-A_Manual_R1.0
Weight: approx. 9.6g
Operating temperature range: -35°C~+65°C 1)
Extended temperature range : -40°C~+75°C 2)
Over USB interface
All hardware components are fully compliant with EU RoHS directive
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