MC45 Hardware Interface Description
P R E L I M I N A R Y
MC45_HD_01_V00.02a Page 86 of 90 12.08.2002
6.6 Air interface
Test conditions: All measurements have been performed at T
amb
= 25°C, V
BATT+ nom
= 4.1V.
The reference points used on MC45 are the BATT+ and GND contacts (test points are
shown in Figure 29).
Table 34: Air Interface
Parameter Min Typ Max Unit
E-GSM 900 880 915 MHz Frequency range
Uplink (MS ® BTS)
GSM 1800 1710 1785 MHz
GSM 1900 1850 1910 MHz
E-GSM 900 925 960 MHz Frequency range
Downlink (BTS ® MS)
GSM 1800 1805 1880 MHz
GSM 1900 1930 1990 MHz
E-GSM 900 31 33 35 dBm RF power @ ARP with 50" load
GSM 1800 28 30 32 dBm
GSM 1900 28 30 32
E-GSM 900 174 Number of carriers
GSM 1800 374
GSM 1900 299
E-GSM 900 45 MHz Duplex spacing
GSM 1800 95 MHz
GSM 1900 80
Carrier spacing 200 kHz
Multiplex, Duplex TDMA / FDMA, FDD
Time slots per TDMA frame 8
Frame duration 4.615 ms
Time slot duration 577 µs
Modulation GMSK
E-GSM 900 -102 -105 dBm
GSM 1800 -102 -105 dBm
Receiver input sensitivity @ ARP
BER Class II < 2.4%
GSM 1900 -102 -105 dBm
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