Bluetooth
Bluetooth provides a fully digital link for communication between a master unit (the phone) and one or more
slave units (e.g. a wireless headset). Data and control interface for a low power RF module is provided by the
module.
Figure 29 Bluetooth interface
The Bluetooth has a separate built in antenna and is powered by VBAT and the regulated voltage VIO. For
audio applications the Bluetooth has a PCM data bus. In addition a UART (universal asynchronous receiver/
transmitter) is used for data communication and controls.
Technical specifications
Main RF characteristics for GSM band phone
Parameter Unit
Cellular system EGSM850/900/1800/1900
RM-495; RM-496
System Module
Issue 1 COMPANY CONFIDENTIAL Page 5 –15
Copyright © 2008 Nokia. All rights reserved.
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