About The Document - Quectel EC21 Series Hardware Design

About the Document

Revision History
Version Date
1.0 2016-04-15
1.1 2016-09-22
1.2 2016-11-04
EC21_Series_Hardware_Design
Author Description
Yeoman CHEN Initial
1. Updated frequency bands in Table 1.
2. Updated transmitting power, supported maximum
3. Updated timing of turning on module in Figure 12.
4. Updated timing of turning off module in Figure 13.
Yeoman CHEN/ 5. Updated timing of resetting module in Figure 16.
Frank WANG/ 6. Updated main UART supports baud rate in Chapter
Lyndon LIU
7. Added notes for ADC interface in Chapter 3.13.
8. Updated GNSS Performance in Table 21.
9. Updated operating frequencies of module in Table
10. Added current consumption in Chapter 6.4.
11. Updated RF output power in Chapter 6.5.
12. Added RF receiving sensitivity in Chapter 6.6.
1. Added SGMII and WLAN interfaces in Table 2.
2. Updated function diagram in Figure 1.
3. Updated pin assignment (Top View) in Figure 2.
4. Added description of SGMII and WLAN interfaces in
Lyndon LIU/ 5. Added SGMII interface in Chapter 3.17.
Michael ZHANG 6. Added WLAN interface in Chapter 3.18.
7. Added USB_BOOT interface in Chapter 3.19.
8. Added reference design of RF layout in Chapter
9. Added current consumption of EC21-V in Chapter
baud rate of main UART, supported internet
protocols, supported USB drivers of USB interface,
and temperature range in Table 2.
3.11.
23.
Table 4.
5.1.4.
6.4
LTE Standard Module Series
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