Quectel UC20, Manual, Page: 16 / 83

UMTS/HSPA Module Series
UC20 Hardware Design
UC20_Hardware_Design Confidential / Released 15 / 84
2.4. 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