EVDO PC Embedded Datasheet

Product Datasheet
V001R006
Issue 2 (2009-01-20)
Confidencein Commercial
Page 30 of 60
Table 3-10 PERST# signal
Pins Name Description Additional
Description
Direction to
Module
22 PERST# Force a hardware reset
on the card.
H: normal or
standby.
L: Reset the
module.
Input
3.2.8 NC Pins
The NC pins are not internally connected in the EM660.
3.3 Power Supply and Consumption
3.3.1 Power Supply
The EM660 is supplied by 3.3 V power source, which must satisfy all requirements of
PCI Express Mini CEM specifications, such as voltage tolerance and peak and
normal current. The detailed requirements are listed in Table 3-11.
Table 3-11 Power requirements
Power Voltage Tolerance Peak (Maximum) Normal (Maximum)
3.3 V ±9% 2750 mA 1100 mA
Notes:
To minimize the RF radiation through the PCI-E interface, you can add a 33 pF ceramic capacitor
to ground on every pin of the PCI-E on the host side except USB D+/D-.
3.3.2 Power Consumption
The power consumptions of the EM660 in different scenarios are respectively listed
in Table 3-12, and Table 3-14.
Table 3-12 DC power consumption (CDMA)
Band Frequency
Channel
Test Value Units Power (dBm)
218 1dBm Tx Power BAND0
(Cell 800M)
384
303
mA
10dBm Tx Power