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3.1.2 Current consumption in D15
In order to design the power supply correctly you need to take in account the current consumption
of the D15 in the different modes.
Mode
D15 with no accessory when no call is in
process (Sleep Mode)
D15 with no accessory but TS is ON
D15 during searching time
D15 with DSC bus accessory(like Handset)
when no call is in process
D15 during a call in maximum power level
D15 during a call in GSM power level #10 (for
Example)
3.1.2.1 Turn On/Off the unit
3.1.2.2 Turn On/Off the unit using the ON/OFF pin.
d15 Modem Integration and Application Developers Guide version draft 0.53
Table 3 – d15 Current consumption
The D15 is powered from a single power supply in the range of 3.0 to 6.0 Vdc.
The unit will not power up automatically by connecting the power and there are two
ways to turn the unit On.
The On/Off pin (pin # 14 at the ZIF connector & pin # 18 at the DIN connector) is
used as a toggle input to turn On and Off the unit. Any drop to ground in this pin will
change the status.
To verify that the unit is On or Off you have to check the DSC_EN line, If it is high
the unit is On If it is low the unit is Off.
The timing for this process is the follow:
Current consumption
<11mA Typical 10mA.
< 50mA.
<180mA typical average 80mA.
Typical 45 mA.
<1.5A Peak, Average 300mA.
<0.7A Peak, Average 175mA
Page 27 of 181
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