User's Manual

MC46 Hardware Interface Description
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MC46_HD_V03.05 Page 7 of 99 13.11.2003
0 Document History
Preceding document: "MC46 Hardware Interface Description" Version 02.8xb
New document: "MC46 Hardware Interface Description" Version 03.05
Chapter Page What is new
1.3, 7.2 12, 97 MC46 now fully type approved and labeled with CE mark
3.1, 3.3.1.4,
3.5.3
22, 29;
40
Removed remark regarding charging during Alarm mode
3.3.1.4 29 Power saving feature is not available in Alarm mode.
3.3.3.5 34 Modified description of overvoltage conditions.
3.4 35 Modified description of GPRS Multislot Class change.
3.6 42 No power saving during Alarm mode.
3.6.2 42 After receiving AT+CFUN=0 the module waits 2s before entering the power
saving mode.
3.11.1 56 Corrected description (added ISO/IEC 7816-3)
5.1 70 Specified max. supply voltage BATT+. Deleted peak supply current. Modified
explanation of absolute maximum ratings.
5.5.3 80 Corrected parameter compressor (receive): OFF
6.1 90 GND planes marked
6.2 91 Description of grounding modified.
Preceding document: "MC46 Hardware Interface Description" Version 02.8xa
New document: "MC46 Hardware Interface Description" Version V02.8xb
Chapter Page What is new
7.2 97 Added chapter related to FCC certification.
3.4 35 More detailed description of GPRS Multislot Class change.
Preceding document: "MC46 Hardware Interface Description" Version 02.8x
New document: "MC46 Hardware Interface Description" Version 02.8xa
Chapter Page What is new
3.3.2.1 30 To keep /EMERGOFF pin and output pins of the serial interfaces from
floating when in high impedance state use additional resistors.
3.3.2.3 31 Added example when /EMERGOFF might be needed.
3.12.2.2 60 LED mode of the SYNC pin recommended for testing and evaluating product
design.
3.12.2.3 61 Recommendations for utilizing /RING0 line added.
4.1.1 65 More detailed information on how to connect the antenna ground pad.
5.4.1 77 More detailed description of current consumption during transmit burst.
Added Smith chart.
5.3 71ff Table 27 - /EMERGOFF pin and output pins of serial interface: To keep
output pins from floating when in high impedance state use additional
resistors.
5.6 84f Table 34: Channel numbers of GSM 850 MHz frequency band corrected.