Quectel UC20

UMTS/HSPA Module Series
UC20 Hardware Design
UC20_Hardware_Design Confidential / Released 2 / 84
About the Document
History
Revision
Date
Author
Description
1.0
2013-07-17
Mountain ZHOU
Initial
1.1
2013-08-29
Mountain ZHOU
1. Updated USB driver information.
2. Added GNSS contents in Chapter 4.
3. Added GNSS current consumption.
4. Updated GNSS antenna requirements.
5. Released USIM_PRESENCE function.
1.2
2014-01-13
Mountain ZHOU
1. Added UC20-G information.
2. Added AMR-WB feature.
3. Added USB upgrade test points’ diagram.
4. Added reference design of transistor circuit on
UART interface.
5. Deleted debug function of Debug UART
interface.
6. Released AP_READY, UART upgrade
function and Rx-diversity function.
7. Modified UC20-A frequency bands.
8. Modified W_DISABLE# definition.
9. Modified USIM pin’s electrical characteristics.
10. Modified GNSS sensitivity definition.
11. Modified turning on timing figure.
12. Updated the sleep application in Chapter
3.5.1 and airplane mode in Chapter 3.5.2.
13. Updated I2C pins definition.
14. Updated current consumption.