Cinterion MC55i - Power Supply Ratings

MC55i Terminal Hardware Interface Description
4.6 Power Supply Ratings
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MC55i_Terminal_HD_v01.201a Page 40 of 47 2010-04-16
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4.6 Power Supply Ratings
Table 21: Power supply specifications (to be defined)
Parameter Description Conditions Min. Typ Max. Unit
V
PLUS
Allowed voltage ripple (peak-
peak), drop during transmit
burst peak current
TALK mode, power control
level for P
out
max
1
1.
Lowest voltage (minimum peak) incl. all ripple and drops >7.6V including voltage drop, ripple and spikes,
measured at western jack (6-pole) pin (1 to 6).
1V
I
PLUS
2
2.
Typical values measured with antenna impedance = 50 Ohm (return loss >20dB).
Average supply current
(average time 3 min.)
Power Down
mode
@8V 480 µA
@12V 700
@30V 1750
SLEEP mode
(GSM/GPRS)
@8V 45 mA
@12V 30
@30V 17
Net searching
mode (no net)
@8V 70 mA
@12V 50
@30V 30
IDLE mode
(GSM/GPRS)
@8V 60 mA
@12V 45
@30V 25
GSM TALK mode @8V 270 mA
@12V 170
@30V 70
GPRS DATA
mode(1 Tx, 4 Rx)
@8V 290 mA
@12V 180
@30V 75
GPRS DATA
mode(2 Tx, 3 Rx)
@8V 370 mA
@12V 230
@30V 90
Peak supply current (during
577µs transmission slot every
4.6ms)
Power control
level for Pout max
@8V 1.7 A
@12V 1.2
@30V 0.7
t
PLUS-Fail
Allowed powerfail time without
terminal reset or power down
After this time the MC55i
Terminal will be reset or
switched off
1ms
Allowed powerfail time without
RTC (real time clock) reset
After this time the RTC will
be reset
15 s
t
R_PLUS
Allowed rise time of V
PLUS
0% to 100% 20 ms