Sierra Wireless MC5725 Hardware Integration Manual page 33

Table 2-7: Current specifications (MC8790 / MC8790V / MC8791V / MC8792V)
Description
With Sleep mode deactivated
(assumes USB bus is fully suspended during measurements)
HSDPA / WCDMA
GSM / GPRS / EDGE
Low Power Mode (LPM) / Offline Mode
RF disabled, but module is operational
Averaged Call Mode WCDMA / HSDPA data DC power consumption
WCDMA
HSUPA
HSDPA
(1.8 Mbps / 3.6 Mbps /
7.2 Mbps)
Peak current (averaged
μ
over 100
Averaged Call Mode GSM / EDGE data DC power consumption (with 4 time slots)
GSM / GPRS
EDGE
Peak current (averaged
μ
over 100
a. Highest current is on Band II (PCS1900)
b. Approximate current difference between speeds = 30 mA
c. Highest current is on 850 / 900 band Class 10 (Class 12 implements power backoff). Current on 1800 / 900
bands is typically 100–200 mA less.
Rev 1.9.1 Feb.09
In the event of a discrepancy in values between this guide and the Product Specification Document (PSD), the PSD takes precedence.
Band
UMTS bands
GSM bands
UMTS bands
s)
GSM bands
GSM bands
GSM bands
s)
Proprietary and Confidential
Typ Max Units
40 50 mA
40 50 mA
4 5 mA
700 mA
300 mA
800 mA
350 mA
800 mA
370 mA
720 mA
650 mA
300 mA
620 mA
2.6 A
Power Interface
Notes / Configuration
DRX cycle = 8 (2.56 s)
MFRM = 5 (1.175 s)
This state is entered when
Watcher (or other application)
shuts down / turns off the
radio.
384 kbps at 20 dBm Tx
a
power
0 dBm Tx power
2 Mbps at 20 dBm Tx power
0 dBm Tx power
All speeds at 20 dBm Tx
b
power
0 dBm Tx power
c
Max PCL for each band
10 dBm Tx
c
Class 12
Worst case on 850 / 900
band.
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