Sony Ericsson T68i, White Paper

Page: 57 / 71

T68i
White Paper, April 2002
57
Performance and technical characteristics
Data transmission rate up to 108,800 bps with one time slot
Specific commands working
with the SIM card No
Support of multipoint
connections No
Dimension GSM 900/E-GSM
900 GSM 1800 GSM 1900
Frequency range TX: 880 – 914 MHz
RX: 925 – 959 MHz TX: 1710 – 1785
RX: 1805 – 1880 TX: 1850 – 1910
RX: 1930 – 1990
Channel spacing 200 kHz 200 kHz 200 kHz
Number of channels 174 Carriers *8
(TDMA) 374 Carriers *8
(TDMA) 299 Carriers *8
(TDMA)
Modulation GMSK GMSK GMSK
TX Phase Accuracy < 5º RMS Phase
error (burst) < 5º RMS Phase error
(burst) < 5º RMS Phase
error (burst)
Duplex spacing 45 MHz 95 MHz 80 MHz
Frequency stability +/- 0.1 +/- 0.1 +/- 0.1
Voltage operation (nominal) 3.6 Volts 3.6 Volts 3.6 Volts
Transmitter RF power output 33 dBm Class 4 (2W
peak) 30 dBm Class 1 (1W
peak) 30 dBm Class 1 (1W
peak)
Transmitter Output
impedance 50
Ω
50
Ω
50
Ω
Transmitter Spurious
emission < -36 dBm up to 1
GHz
< -30 dBm over 1
GHz
(according to GSM
spec.)
< - 30 dBm
(according to GSM
spec.) < - 30 dBm
(according to GSM
spec.)
Receiver RF level Better than – 102
dBm – 102 dBm – 102 dBm
Receiver RX Bit error rate < 2.4% < 2.4% < 2.4%