Sierra Wireless MC5725 Hardware Integration Manual page 31

Table 2-5: Current specifications (MC8780 / MC8781) (Continued)
Description
(Maximum power) Averaged WCDMA / HSDPA data current consumption (includes USB bus
current)
WCDMA
HSUPA
HSDPA
(1.8 Mbps / 3.6 Mbps /
7.2 Mbps)
(Maximum power) Averaged GSM / EDGE data current consumption (includes USB bus current)
GSM / GPRS
EDGE
Peak current
(averaged over
μ
100 s)
a. Highest current is on Band II (PCS1900)
b. Approximate current difference between speeds = 20 mA
Example: Current(7.2 Mbps) = Current(3.6 Mbps) + 20 mA = Current(1.8 Mbps) + 40 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.
Table 2-6: Current specifications (MC8785V)
Description
Averaged standby DC current consumption
With Sleep mode activated
(assumes USB bus is fully suspended during measurements)
HSDPA / WCDMA
GSM / GPRS / EDGE
With Sleep mode deactivated
(assumes USB bus is fully suspended during measurements)
HSDPA / WCDMA
GSM / GPRS / EDGE
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 Typ
UMTS bands 800
300
850
400
850
450
GSM bands 560
230
GSM bands 520
GSM bands 2.75
Band Typ
UMTS bands 4
GSM bands 4
UMTS bands 96
GSM bands 96
Proprietary and Confidential
Max Units Notes / Configuration
mA 384 kbps at 20 dBm Tx
a
power
mA 0 dBm Tx power
mA 2 Mbps at 20 dBm Tx power
mA 0 dBm Tx power
mA All speeds at 20 dBm Tx
b
power
mA 0 dBm Tx power
mA Max PCL for each band
mA 10 dBm Tx
mA Class 12
A Worst case on 850 / 900
band.
Max Units Notes / Configuration
5 mA DRX cycle = 8 (2.56 s)
5 mA MFRM = 5 (1.175 s)
100 mA DRX cycle = 8 (2.56 s)
100 mA MFRM = 5 (1.175 s)
Power Interface
c
c
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