User's Manual

NOVATEL WIRELESS
TECHNOLOGIES LTD.
Calgary, Alberta
TITLE:
Hardware Interface Specification for
Expedite Wireless IP Modem
DOCUMENT NO.:
OM-01016529
SHEET:
11 of 17
REV:
3.0
(CDPD System Specification Version 1.1 part 409, paragraph 4.3)
4.4 Electrical Specifications
4.4.1.1 Operating Characteristics (Ta = 0ºC to 60ºC, VCC1 & VCC2 = 3.6V, unless
otherwise noted.)
SYMBOL PARAMETER / CONDITIONS MIN TYPICAL MAX UNITS
VCC1 MODEM SUPPLY VOLTAGE 3.45 3.6 4.5 V
VCC2 RF POWER AMPLIFIER SUPPLY VOLTAGE 3.45 3.6 4.5 V
MODEM OFF
VCC1 = 3.6V
5 µA
SLEEP MODE
VCC1 = 3.6V
8 mA
RECEIVE MODE
VCC1 = 3.6V
130 mA
ICC1
TRANSMIT MODE
VCC1 = 3.6V
175 mA
MODEM OFF
VCC2 = 3.6V
5 µA
SLEEP MODE
VCC2 = 3.6V
5 µA
RECEIVE MODE
VCC2 = 3.6V
5 µA
ICC2
TRANSMIT MODE
VCC2 = 3.6V
50 725 mA
TWAKEUP WAKE-UP PULSE WIDTH
FROM SLEEPMODE
FROM POWER UP
10
500
mSec
VIL1(NOTE 1) INPUT VOLTAGE – LOW (EXCEPT FOR WKUP)
MODEM ON
MODEM OFF
-0.5 0 0.8
0
V
VIH1(NOTE 1) INPUT VOLTAGE - HIGH (EXCEPT FOR WKUP)
MODEM ON
MODEM OFF
2.0 3.3 3.7
0.0
V
VIL2(NOTE 2) INPUT VOLTAGE - LOW (WKUP ONLY) WKUP ONLY -0.5 0 0.5 V
VIH2(NOTE 2) INPUT VOLTAGE - HIGH (WKUP ONLY) 3.0 4.5 V
VOL(NOTE 1) OUTPUT VOLTAGE - LOW (I
OL
= 1.0mA) 0.78 V
VOH(NOTE 1) OUTPUT VOLTAGE - HIGH (I
OH
= -200µA) 2.6 3.3 3.4 V
IOL(NOTE 1) MAXIMUM SINK CURRENT -1.0 mA
IOH(NOTE 1) MAXIMUM SOURCE CURRENT 1.0 mA
VADC ADC INPUT VOLTAGE
ADC READABLE VOLTAGE RANGE
ABSOLUTE MAXIMUM INPUT VOLTAGE
1.5 5.50
8.50
V
RESADC ADC RESOLUTION 8 BITS
24 mV
REFADC ADC REFERENCE VOLTAGE 2.048 V
DIVADC ADC DIVIDER RATIO 1:3
ZADC ADC INPUT IMPEDANCE 300k OHMS
NOTE 1 - The specifications apply to all pins on the serial interface connector except for the following pins: GND, VCC1, VCC2 &
ADC_IN. All pins have except VCC1, VCC2 and GND are filtered via a 470pF shunt capacitor and a 330 ohm series resistor which
affects the sink and source capability of the pin.