Figure 58 Bluetooth interface block diagram
Main RF characteristics
Table 14 Channel numbers and frequencies
System Channel number TX frequency RX frequency Unit
GSM900 0 < =n <= 124 F = 890 + 0.2*n F = 935 + 0.2*n MHz
975 <= n <= 1023 F = 890 + 0.2* (n -
1024)
F = 935 + 0.2*(n
-1024)
MHz
GSM1800 512 <= n <= 885 F = 1710.2 + 0.2* (n -
512)
F = 1805.2 + 0.2*
(n-512)
MHz
GSM1900 512 <= n <= 810 F = 1850.2 + 0.2* (n -
512)
F = 1930.2 + 0.2*
(n-512)
MHz
Table 15 Main RF characteristics
Parameter Unit and value
Cellular systems EGSM900/GSM1800/GSM1900
RX Frequency range EGSM900: 925 ... 960 MHz
GSM1800: 1805...1880 MHz
GSM1900: 1930...1990 MHz
TX Frequency range EGSM900: 880 ... 915 MHz
GSM1800: 1710 ...1785 MHz
GSM1900: 1850...1910 MHz
Duplex spacing EGSM900: 45 MHz
GSM1800: 95 MHz
GSM1900: 80 MHz
Channel spacing 200 kHz
RM-237
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