Half Duplex GMSK Modem
FX579
1.7
Performance Specification
1.7.1 Electrical Performance
Absolute Maximum Ratings
Exceeding these maximum ratings can result in damage to the device.
Min.
Max.
Units
Supply voltage (V
Voltage on any pin (ref. V = 0V)
Current into or out of V and V pins
Current into or out of any other pin
Storage Temperature
)
-0.3
-0.3
-30
-20
-55
-40
7.0
V
V
mA
mA
°C
°C
DD
V
DD
+ 0.3
SS
+30
+20
+125
+85
DD
SS
Operating Temperature
D4 Package (Plastic)
Total allowable power dissipation at Tamb=25°C
...... Derating
800
13
mW
mW/°C
Operating Limits
Correct operation of the device outside these limits is not implied.
Condition Min.
Max.
Units
Operating Temperature
Supply Voltage (V
-40
3.0
+85
5.5
°C
V
)
DD
Xtal/Clock Frequency
Xtal/Clock Frequency
Data Rate
(V < 4.5V)
1.0
1.0
4000
4000
5.0
6.5
20 000
40 000
MHz
MHz
bits/sec
bits/sec
DD
(V ³ 4.5V)
DD
(V < 4.5V)
DD
Data Rate
(V ³ 4.5V)
DD
Operating Characteristics
All device characteristics are measured under the following conditions unless otherwise specified:
Tamb = 25°C, V = 5.0V, Xtal frequency = 4.096MHz
DD
Data rate = 8000 bits/sec, Noise bandwidth = bit rate
Characteristic
Note
Min.
Typ.
Max.
Units
Static Values
Supply Current
(for V = 3.0V)
1
1
-
-
-
-
2
4
mA
mA
DD
(for V = 5.0V)
DD
Logic "1" input level
Logic "0" input level
Logic input current
Logic "1" Output Level at I = -120µA
Logic "0" Output Level at I = 120µA
3.5
-
-5.0
4.6
-
-
-
-
-
-
-
V
V
µA
V
1.5
5.0
-
2
OH
0.4
V
OL
ã 1996 Consumer Microcircuits Limited
20
D/579/4
CMLMICRO [ CML MICROCIRCUITS ]
