Samsung SGH-600 Specifications

3. Specification

3-1 General Specification

3-1-1 Frequency Range

- Transmit (Uplink): 890 ~ 915 MHz

- Receive (Downlink): 935 ~ 960 MHz

3-1-2 Channel Spacing : 200 kHz

3-1-3 Number of Channels: 124

3-1-4 Frequency Spacing: 45 MHz

3-1-5 Modulation Data Rate

- 270.833 kbits/sec

3-1-6 Frame Period: 4.615 msec

3-1-7 Timeslot Period: 576.9 µsec

3-1-8 Modulation Type: 0.3 GMSK

3-1-9 MS Max Power: 2 W (33 dBm)

3-1-10 MS Min Power: 0.3 W (5 dBm)

3-1-11 Voice Coder Bit Rate:13 kbits/sec

3-1-12 Input / Output Impedance : 50½

3-1-13 VCO Frequency

- TX VCO : 890 ~ 915 MHz,

- UHF VCO : 1160 ~ 1185 MHz

- VHF VCO : 540 MHz

3-1-14 IF

- 1st RX IF: 225 MHz

- 2nd RX IF: 45 MHz

- 1st TX IF: 270 MHz

3-1-15 VCTCXO Frequency

- 13 MHz (±5 PPM)

3-1-16 Operating Temperature

- Main : Nominal: +15 ¼C ~ +35 ¼C
Extreme: -10 ¼C (spec) ~ +55 ¼C

- TA : Nominal: +15 ¼C ~+35 ¼C
Extreme: -20 ¼C ~ +55 ¼C

3-1-17 Operating Voltage

- High Voltage: 4.1 V

- Nominal Voltage: 3.7 V

- Low Voltage: 3.4 V

Samsung Electronics 3-1

3-2 Transmitter Specification

3-2-1 Power

3-2-2 Power Ramping Time Level

The power-time template requirements for mobile
stations also apply to base stations. The only
difference is that, in the base station case, no short
burst (random access) exists. To measure the
template, the base station has to be operated in its

bursting mode. This test cannot be performed on the
base channel, since a base station has to transmit
continuously in all time slots. In most cases, an
additional channel besides the base channel has to
be activated or the transmitter under test is not
considered to be configured as a base channel
transmitter. The average peak power from the
previous part of the test is used as a reference. The
time reference is provided by the training sequence
in the middle of the burst. The template has to meet
the requirements of Fig. 6. Again, the noise level of ­70 dBc is dependent on the actual transmitted
power level. If this level is below -36 dBm, the
absolute level applies. The template is usually
evaluated along with the peak power level.

3-2-3 IF Filter

- 270 MHz LC Filter

3-2-4 TX SAW Filter

- Spurious signal atenuating : ²-70 dBc

- Wide Bandwidth to make plane Group delay
characteristic

3-2-5 Power Amplifier

- Total Efficiency: 40~45 % at Pin=1mW,

VDD=3.6 V, Pout=3.2 W

Power Peak Norminal Extreme

Control LevelPower (dBm) (dB) (dB)

5 33 ±2 dB ±2.5 dB
6 31 ±3 dB ±4 dB
7 29 ±3 dB ±4 dB
8 27 ±3 dB ±4 dB

9 25 ±3 dB ±4 dB
10 23 ±3 dB ±4 dB
11 21 ±3 dB ±4 dB
12 19 ±3 dB ±4 dB
13 17 ±3 dB ±4 dB
14 15 ±3 dB ±4 dB
15 13 ±3 dB ±4 dB
16 11 ±5 dB ±6 dB
17 9 ±5 dB ±6 dB
18 7 ±5 dB ±6 dB
19 5 ±5 dB ±6 dB

3-2 Samsung Electronics

Specification

dBc

+4
+1

0

-1

-6

-30

-70
10 8 10 TO

(147 bits)

10 8 10

[µs]

< Fig. 6 Power-Time Template >