Product Info

LTE Standard Module Series

EC21 Hardware Design

EC21_Hardware_Design 84 / 120

and no harm to radio network. Only one or more parameters like P

out

might reduce in their value and

exceed the specified tolerances. When the temperature returns to the normal operation temperature

levels, the module will meet 3GPP specifications again.

3. “*” means under development.

6.4. Current Consumption

The values of current consumption are shown below.

Table 34: EC21-E Current Consumption

Parameter Description Conditions Typ. Unit

VBAT

OFF state Power down 13 uA

Sleep state

AT+CFUN=0 (USB disconnected)

1.4 mA

EGSM900 @DRX=9 (USB disconnected) 1.8 mA

DCS1800 @DRX=9 (USB disconnected) 1.8 mA

WCDMA PF=64 (USB disconnected) 2.4 mA

WCDMA PF=128 (USB disconnected) 1.9 mA

LTE-FDD PF=64 (USB disconnected) 3.2 mA

LTE-FDD PF=128 (USB disconnected) 2.1 mA

Idle state

(GNSS OFF)

EGSM900 @DRX=5 (USB disconnected) 22.0 mA

EGSM900 @DRX=5 (USB connected) 32.0 mA

WCDMA PF=64 (USB disconnected) 22.5 mA

WCDMA PF=64 (USB connected) 32.7 mA

LTE-FDD PF=64 (USB disconnected) 22.5 mA

LTE-FDD PF=64 (USB connected) 32.5 mA

GPRS data transfer

(GNSS OFF)

EGSM900 4DL/1UL @32.3dBm 220 mA

EGSM900 3DL/2UL @32.18dBm 387 mA