About The Document - Quectel UC20 Hardware Design

About the Document

History
Revision
1.0
1.1
1.2
1.3
UC20_Hardware_Design
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Date Author
2013-07-17 Mountain ZHOU
2013-08-29 Mountain ZHOU
2014-01-21 Mountain ZHOU
2014-03-05 Mountain ZHOU
Description
Initial
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. Added UC20-G information.
2. Added AMR-WB feature.
Added USB upgrade test points' diagram.
3.
4. Added reference design of transistor circuit on
UART interface.
5. Deleted debug function of Debug UART
interface.
6. Released AP_READY, main UART upgrade
function and Rx-diversity function.
7. Modified UC20-A frequency bands.
8. Modified W_DISABLE# definition.
9. Modified GNSS sensitivity definition.
10. Modified turning on timing figure.
11. Added power saving methods in Sleep Mode
in Chapter 3.5.1.
12. Updated airplane mode in Chapter 3.5.2.
13. Updated I2C pins definition.
14. Updated current consumption.
1. Modified VDD_2V85 pin definition and GNSS
LNA design circuit.
2. Added notes about UC20 versions in Chapter
2.1.
3. Added description about the sleep mode in
Confidential / Released
UMTS/HSPA Module Series
UC20 Hardware Design
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