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The EGAIM part contains the interface between the digital and the analogue signal processing:
• 2 Sigma Delta A/D converters for RX signal, and for the necessary signals for the charge control and
temperature measurement. For this, the converter inputs are switched over to the various signals via
the multiplexer.
• 2 D/A converters for the GMSK-modulated TX signal,
• 1 D/A converter for the Power Ramping Signal,
• 1 Sigma Delta A/D and D/A converter for the linguistic signal.
Blockdiagram EGAIM inside the EGOLD
V 1.10
A52/A55/C55 IFX
Page 19of 45
Company Confidential © Copyright Siemens AG
ICM MP CCQ GRM
08/03
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