User Guide

Figure 24 Bluetooth interface

The Bluetooth has a separate built in antenna and is powered by VBAT. 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 and WCDMA band phones

Parameter Unit

Cellular system EGSM850/900/1800/1900 + WCDMA band I/V

RX frequency band EGSM850: 869- 894 MHz

EGSM900: 925- 960 MHz

GSM1800: 1805 - 1880 MHz

GSM1900: 1930 - 1990 MHz

WCDMA band I: 2110 - 2170 MHz

WCDMA band V: 869 - 894 MHz

TX frequency band GSM850: 824- 849 MHz

GSM900: 880- 915 MHz

GSM1800: 1710 - 1785 MHz

GSM1900: 1850 - 1910 MHz

WCDMA band I: 1920 - 1980 MHz

WCDMA band V: 824 - 849 MHz

RM-265

System Module

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