User's Manual
Table Of Contents
- General description
- Interfaces
- General Purpose Connector (GPC)
- Power supply
- Electrical information for digital I/O
- LCD interface
- SPI Auxiliary bus
- Keyboard interface
- Main serial link (UART1)
- Auxiliary serial link (UART2)
- SIM interface
- General Purpose Input/Output
- Activity status indication
- Analog to Digital Converter (ADC)
- Audio interface
- Battery charging interface
- ON / ~OFF
- BOOT (optional)
- Reset signal (~RST)
- External Interrupt (~INTR)
- VCC output
- Real Time Clock Supply (VCC_RTC)
- RF interface
- Technical specifications
- Appendix
WM_PRJ_Q2400_PTS_002 - 004
March 5, 2004
Power Supply Voltage
V
MIN
V
NOM
V
MAX
Ripple max (U
ripp
)
VBATT
3.3 V (*) 3.6 V 4.5 V (**) 50 mVpp for freq<200 kHz
500 µVpp for freq>200 kHz
VDD
3.1 V 4.5 V 100 mVpp
(*): This value has to be guaranteed during the burst (with 2.0 A Peak in GSM or GPRS mode).
(**): max operating Voltage Stationary Wave Ratio (VSWR) 2:1.
When supplying the module with a battery, the total impedance (battery+contacts+protections+PCB)
should be < 150 mOhms to limit voltage drop-out within emission burst.
Refer to document [1] for further information about power supply design.
2.2.2 Power consumption
The following information is given assuming a 50 Ω RF output.
Power consumption in OFF mode
(module supplied, OFF state, no software running)
Conditions I
NOM
I
MAX
Overall consumption
VBATT + VDD
Off 5 µA 10 µA
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