User's Manual

LE920A4 HW User Guide Power Supply
Doc#: 1VV0301261 Power Supply Requirements
Rev. 4.3 Page 55 of 123 2017-12-07
Mode Average (Typ.) Mode Description
LTE (22 dBm) 500 mA
LTE CAT 4 channel BW 20 MHz, RB=1,
Tx = 22 dBm
(Test case: BAND 1, Channel 300)
Operative Mode (WCDMA)
WCDMA Voice 200 mA WCDMA voice call (Tx = 10 dBm)
WCDMA
HSDPA
(0 dBm)
150 mA
WCDMA data call (Cat 14, Tx = 0 dBm,
Max throughput)
WCDMA
HSDPA
(22 dBm)
310 mA
WCDMA data call (Cat 14, Tx = 22 dBm,
Max throughput)
Operative Mode (GSM)
GSM Tx and Rx mode
GSM900 PL5 250 mA
GSM voice call
DCS1800 PL0 170 mA
GPRS 4 Tx + 1 Rx
GSM900 PL5 430 mA
GPRS Sending Data mode (CS-4)
DCS1800 PL0 340 mA
* Worst/best case depends on network configuration and is not under module control.
NOTE:
The electrical design for the power supply must ensure a peak current output
of at least 2.0A.