Installation Instruction

Ref : SCT TMO MOD SPEC 662
Rev.: B
Ref. sec. :
Date:
18/11/2004
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MO2XX module – Confidential under NDA
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6. ELECTRICAL SPECIFICATION
V
OH
High level output voltage
V
OL
Low level output voltage
V
IH
High level input voltage
V
IL
Low level input voltage
6.1 VBAT
The module is supplied through the VBAT signal with the following characteristics:
Parameter Name Min Typ Max
VBAT period (ms) VbatTe (*) 4.614 4.615 DC
VBAT low duration
(us)
VbatTi (*) 550 - VBAT period
VBAT rise time (us) VbatTr (*) 0 - -
VBAT fall time (us) VbatTf (*) 0 - -
VBAT maximum
voltage (V)
VbatMax (*) - - 4.5
VBAT minimum
voltage (V)
VbatMin (*) 3.45 - -
VBAT drop voltage
(mV)
DeltaVbat (*) - - 450 (**)
Transient voltage
(V)
3 - -
Noise level (Vrms)
@100MHz-1MHz
- - 50mV
(*): cf figure 8.
(**): for a new battery. Of course for an old battery, this value will be higher and will create a reset (without MMI
message) of the modul when the battery begins to be discharged.
Figure 4
VBAT voltage waveform