LTE Standard Module Series
EC21 Mini PCIe Hardware Design
EC21_Mini_PCIe_Hardware_Design 49 / 67
1)
SIMO is a smart antenna technology that uses a single antenna at the transmitter side and two
antennas at the receiver side, which can improve RX performance.
6.5. ESD Characteristics
The following table shows the ESD characteristics of EC21 Mini PCIe.
Table 33: ESD Characteristics of EC21 Mini PCIe
6.6. Current Consumption
The following tables describe the current consumption of EC21 Mini PCIe series module.
Table 34: Current Consumption of EC21-A Mini PCIe
Parameter Description
Conditions
Typ.
Unit
I
VBAT
Sleep state
AT+CFUN=0
(USB disconnected)
3.5
mA
WCDMA PF=64 (USB disconnected)
5.0
mA
WCDMA PF=128 (USB disconnected)
4.4
mA
LTE-FDD PF=64 (USB disconnected)
5.3
mA
LTE-FDD PF=128 (USB disconnected)
4.5
mA
Tested Interfaces
Contact Discharge
Air Discharge
Unit
Power Supply and GND
+/-5
+/-10
kV
Antenna Interfaces
+/-4
+/-8
kV
USB Interface
+/-4
+/-8
kV
(U)SIM Interface
+/-4
+/-8
kV
Others
+/-0.5
+/-1
kV
NOTE
