Novatel HS 3001, Руководство по интеграции

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Control Connector Signal Descriptions And
Functions
Unless otherwise noted in the following sections, all digital signals will reference the following
specifications:
Parameter Parameter/Conditions Comments MIN TYP MAX UNIT
V
IH
High level Input voltage 1.17 1.83 V
V
IL
Low level Input voltage -0.3 0.63 V
V
SHYS
Schmitt hysteresis voltage 15 mV
I
L
Input leakage current V
DDX
= Max
V
IN
= 0 V to V
DDM
200 nA
V
OH
High level output voltage I
OUT
= I
OH
1.35 1.8 V
V
OL
Low level output voltage I
OUT
= I
OL
0 0.45 V
I
OH
High level output voltage 3 mA
I
OL
Low level output voltage CMOS, at pin rated drive
strength 3 mA
C
IN
Input Capacitance 5 pF
Module Power (PINS 87, 89, 91, 93, 95, 97, 99)
The HS 3001 module uses a single voltage source of V
CC
= +3.4 V to 4.4 V.
VBAT Parameter/Conditions
Min
(mA)
Typ
(mA)
Max
(mA)
Units
Main Battery Supply Voltage In Regulation 3.4 4.4 Vdc
Peak Current 1000 µF on Host at Module Connector 600mA 680mA mA
The uplink burst will cause strong ripple on the voltage lines and should be
filtered effectively. We recommend that 1000
µ
F of capacitance be placed as
close to the modem I/O connector as possible. It should be noted that the input
voltage level should not drop below the minimum voltage rating under any
circumstances, especially during the uplink burst period.