Specifications - Motorola A780 Service Manual

Level 1 and 2 Service Manual

Specifications

General Function
Frequency Range GSM 850
Frequency Range GSM 900
Frequency Range DCS 1800
Frequency Range PCS 1900
Channel Spacing
Channels
Modulation
Transmitter Phase Accuracy
Duplex Spacing
Frequency Stability
Operating Voltage
Transmit Current Drain
Stand-by Current Drain
Dimensions, with 1000 mAhr Li Ion
battery
Size (Volume)
Weight
Temperature Range
Battery Life, with standard 1000 mAhr
Li-Ion Battery
Battery Charge Time
Transmitter Function
RF Power Output
Output Impedance
Spurious Emissions
Receiver Function
Receive Sensitivity
RX Bit Error Rate (100k bits) Type II
Speech Coding Function
Speech Coding Type
Bit Rate
Frame Duration
Block Length
Classes
Bit Rate with FEC Encoding
6809488A90
Specification
824-848 MHz Tx
869-893 MHz Rx
880-915 MHz Tx (with EGSM)
925-960 MHZ Rx
1710-1785 MHz Tx
1805-1880 MHz Rx
1850-1910 MHz Tx
1930-1990 MHz Rx
200 kHz
174 EGSM, 374 DCS, 374 PCS, 124 GSM 850 carriers with 8
channels per carrier
GMSK at BT = 0.3
5 Degrees RMS, 20 Degrees peak
45 MHz
± 0.10 ppm of the downlink frequency (Rx)
+3.2V dc to +5.5V dc (cell)
+4.8V dc to +6.5V dc (external charger)
80-160 mA average talk current drain
5 mA (DRX2), 2 mA (DRX9) typical
49.2mm x 89.2mm x 28mm (excluding antenna)
(1.94 inches x 3.51 inches x 1.10 inches)
3
97 cc (5.91 in )
148.3 gm (5.01 oz) with battery
-10° C to +55° C (+15° F to +130° F)
Talk time 6.3 Hrs
Standby time 210 Hrs.
All talk and standby times are approximate and depend on
network configuration, signal strength, and features selected.
Standby times are quoted as a range from DRX=2 to DRX=9.
Talk times are quoted as a range from DTX off to DTX on.
1.75 hours to 90% of 1000mAhr capacity
Specification
32 dBm nominal GSM 900, 29 dBm nominal GSM 1800
50 ohms nominal
-36 dBm from 0.1 to 1 GHz, -30 dBm from 1 to 4 GHz
Specification
Better than -103 dBm
< 2%
Specification
Regular pulse excitation/linear predictive coding with long term
prediction (RPE LPC with LTP)
13.0 kbps
20 ms
260 bits
Class 1 bits = 182 bits; Class 2 bits = 78 bits
22.8 kbps
September 20, 2004
Specifications
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