LTE Standard Module Series
EC25 Hardware Design
EC25_Hardware_Design 3 / 130
3. Added BT interface in Chapter 3.18.2.
4. Updated GNSS performance in Table 24.
5. Updated reference circuit of wireless connectivity
interfaces with FC20 module in Figure 29.
6. Updated current consumption of EC25-E module in
Table 33.
7. Updated EC25-A conducted RF receiving sensitivity
in Table 38.
8. Added EC25-J conducted RF receiving sensitivity in
Table 40.
1.4 2018-03-05
AnniceZHANG/
Lyndon LIU/
Frank WANG
1. Updated functional diagram in Figure 1.
2. Updated LTE, UMTS and GSM features in Table 2.
3. Updated description of pin 40/136/137/138.
4. Updated PWRKEY pulled down time to 500ms in
Chapter 3.7.1 and reference circuit in Figure 10.
5. Updated reference circuit of (U)SIM interface in
Figure 17&18.
6. Updated reference circuit of USB interface in Figure
19.
7. Updated PCM mode in Chapter 3.12.
8. Added SD card interface in Chapter 3.13.
9. Updated USB_BOOT reference circuit in Chapter
3.20.
10. Updated module operating frequencies in Table 26.
11. Updated antenna requirements in Table 30.
12. Updated EC25 series module current consumption in
Chapter 6.4.
13. Updated EC25 series module conducted RF receiving
sensitivity in Chapter 6.6.
14. Added thermal consideration description in Chapter
6.8.
15. Added dimension tolerance information in Chapter 7.
16. Added storage temperature range in Table 2 and
Chapter 6.3.
17. Updated RF output power in Table 41.
18. Updated GPRS multi-slot classes in Table 53.
19. Updated storage information in Chapter 8.1.
1.5 2018-04-20
Kinsey
ZHANG
1. Added information of EC25-AF in Table 1.
2. Updated module operating frequencies in Table 27.
3. Added current consumption of EC25-AF module in
Table 40.
4. Changed GNSS current consumption of EC25 series
module into Table 41.
5. Added EC25-AF conducted RF receiving sensitivity in
