High Speed GMSK Modem 4k to 64kbps
Page 18 of 20
MX589
6.1.3 Operating Characteristics
For the following conditions unless otherwise specified.
VDD = 5.0V @ TAMB = 25°C
Xtal/Clock Frequency = 4.096MHz, Data Rate = 8kbps, Noise Bandwidth = Bit Rate
Static Values
Supply Current
IDD (VDD = 3.0V)
Notes
Min.
Typ.
Max.
Units
Tx PS
Rx PS
1
1
0
1
0
1
1
0
0
0.5
1.0
1.0
1.5
mA
mA
mA
mA
IDD (VDD = 5.0V)
1
0
1
0
1
1
0
0
1.0
2.0
3.0
4.0
mA
mA
mA
mA
Input Logic Level
Logic 1 Input Level
Logic 0 Input Level
Logic Input Current
Logic 1 Output Level (IOL = 120µA)
Logic 0 Output Level (IOL = -120µA)
Transmit Parameters
Tx OUT, Output Impedance
Tx Out, Level
3.5
V
V
µA
V
1.5
5.0
2
-5.0
4.6
0.4
V
3
4, 10
12
1.0
1.0
kΩ
VP-P
V
0.8
-0.125
1.2
0.125
Output DC Offset
Tx Data Delay
BT = 0.3
BT = 0.5
Tx PS to Output-Stable time
Receive Parameters
Rx Amplifier
5
5
6
2.0
1.5
4.0
2.5
2.0
bit-periods
bit-periods
bit-periods
Input Impedance
Output Impedance
Voltage Gain
Rx Filter Signal Input Level
Rx Time Delay
1.0
MΩ
KΩ
dB
7
10.0
50.0
1.0
8, 10
9
0.7
1.3
3.0
VP-P
bit-periods
On-Chip Xtal Oscillator
RIN
ROUT
10.0
MΩ
kΩ
dB
11
11
50.0
25.0
Voltage Gain
Table 8: Operating Characteristics
2001 MX-COM, Inc.
www.mxcom.com tel: 800 638 5577 336 744 5050 fax: 336 744 5054
Doc. # 204800103.011
4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA
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