User's Manual

3.5 Electrical Characteristics
DC characteristics
Power Supply:
Symbol Parameter Min Typ Max Unit
+3.3Vaux Power Supply Voltage 3.2 3.3 3.6 V
Isys(peak) System Max Current Consumption 2.0 2.2 A
Isys(avg.) System Max Current Consumption 0.8 1.0 A
※ The module draws under more than 2.2A peak current while transmitting. Use wide
traces for power supply line and compliant with the PCB layout rule.
The current rating of component related with the power supply line must be
taken into consideration
※ Definitions:
Peak current – The highest averaged current value over any 100-microsecond period
Normal current – The highest averaged current value over any 1-second period
Control Interface:
˙W_DISABLE# :
Symbol Parameter Min Max Unit
VIH High Level Input Voltage 0.7Vcc V
VIL Low Level Input Voltage 0.3Vcc V
tpwron Power-on sequence interval 1.5 sec
High Level: Device Power on Low Level: Device Power off
※ W_DISABLE# must stay high at least tpwron to power on the Device.
USB Transceiver DC characteristics
The USB interface is powered from 3.3V power source.
Parameter Symbol Min Max Unit
Input Levels for Low/Full Speed
High VIH 2.0 V