Quectel UC20 Hardware Design

UMTS/HSPA Module Series
UC20 Hardware Design
UC20_Hardware_Design Confidential / Released 2 / 82
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
2014-01-21
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, 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.
1.3
2014-03-05
Mountain ZHOU
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
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Quectel UC20 Specifications

General

Brand	Quectel
Model	UC20
Category	Control Unit
Language	English