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Parameter
Input Voltage
In a Call on Power Level 0 (Power Class I)
In a Call on Power Level 2
AMPS Burst Duration for network update
Stand-by/Idle mode (Rx ON)
Powered Down Current Draw
Note: The typical values observed are made in AMPS call with voice channel set to 358.
2.4.3.3
Power Down Mode (Minimum DC Power Consumption)
In power down mode the Wireless CPU
control of host application. In this mode, the unit consumes approximately 1 uA of current as
measured from the VCC_MAIN supply input and 1 uA of current as measured from the VCC_AUX
supply input.
To activate this mode, the Module_PWR_EN_B signal on pin 12 of the system connector is pulled to
a logic level 1, which puts the Wireless CPU
the low power state until the Module_PWR_EN_B signal is driven low by an external open collector
transistor in the application circuitry. Turning the external open collector transistor off will cause
the Module_PWR_EN_B signal to float high and turn the Wireless CPU
line is tied to VCC_MAIN through a 100kΩ pull-up resistor so the sink current in the external open
collector transistor is minimal.
Parameter
Internal Pull-up Resistance to
VCC_MAIN
Off-Time
In the Power Down Mode the radio is inactive and serial communication with the CM52 is
suspended.
VREF Signal Details
2.4.4
The following table defines the current sourcing capabilities and behavior of the VREF signal. This
signal is defined as a logic reference voltage, not a supply voltage to the application. Refer to 3
Recommend Circuitry for interface circuit implementation suggestions.
CM52 Integrators' Manual
WI_DEV_CM52_UGD_001-001
Page 25 of 53
Table 12: VCC_AUX Supply Power Consumption
is placed in a low power consumption state under the
®
®
Minimum
90
1
Table 13: Module_Pwr_EN_B Signal Parameters
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without prior written agreement.
Ce document est la propriété exclusive de WAVECOM. Il ne peut être communiqué ou divulgué à des tiers sans son autorisation préalable
Min
Typical
11
13.8
0.88
3.5
0.16
0.5
1
into the low power state. The Wireless CPU
Nominal
Maximum
100
CM52 Integrators' Manual
Max
Units
16.6
V
1.3
A
4.5
mA
S
1
uA
uA
will stay in
®
off. The Module_PWR_EN_B
®
Units
KΩ
S
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