FX614 Consumer Microcircuits Limited, FX614 Datasheet - Page 14

• Manufacturer Part Number: FX614
• Description: Bell 202 Compatible Modem Fx614
• Manufacturer: Consumer Microcircuits Limited

Bell 202 Compatible Modem
Operating Characteristics
For the following conditions unless otherwise specified:
DC Parameters
FSK Demodulator
FSK Retiming
FSK Modulator
Tx 1200bits/sec (M1 = '0', M0 = '1').
Tx 150bits/sec (M1 = '0', M0 = '0')
1997 Consumer Microcircuits Limited
I
I
I
Logic '1' Input Level
Logic '0' Input Level
Logic Input Leakage Current (Vin = 0 to V
Output Logic '1' Level (l
Output Logic '0' Level (l
RDYN O/P 'off' State Current (Vout = V
Bit Rate
Mark (Logical '1') Frequency
Space (Logical '0') Frequency
Valid Input Level Range
Maximum Twist (Mark Level wrt Space Level)
Acceptable Signal to Noise Ratio
Level Detector 'On' Threshold Level
Level Detector 'Off' to 'On' Time (Figure 4 Teon)
Level Detector 'On' to 'Off' Time (Figure 4 Teoff)
Acceptable Rx Data Rate
Tx Data Rate
TXOP Level
Twist (Mark Level wrt Space Level)
Bit Rate
Mark (Logical '1') Frequency
Space (Logical '0') Frequency
Bit Rate
Mark (Logical '1') Frequency
Mark (Logical '0') Frequency
DD
DD
DD
Excluding XTAL/CLOCK Input
(M0 = '1', M1 = '1')
(M0 or M1 = '0') at V
(M0 or M1 = '0') at V
V
Xtal Frequency = 3.579545MHz
0dBV corresponds to 1.0Vrms
0dBm corresponds to 775mVrms into 600 .
DD
= 3.0V at Tamb = 25°C and V
OH
OL
DD
DD
= 360 A)
= 360 A)
= 5.0V
= 3.0V
DD
0.1%
DD
DD
)
= 3.3V to 5.5V at Tamb = -40 to +85°C,
),
14
Notes
1, 2
3
4
3
5
1
1
V
-40.0
1188
2178
1188
1194
1197
2196
DD
±6.0
20.0
Min.
70%
-1.0
-2.0
385
485
-1.0
8.0
0
0
0
-
-
-
-
-
-
-
-
-0.4
1200
1200
2200
1200
1200
Typ.
150
1.0
1.0
1.7
0
0
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-40.0
1212
1212
2222
1212
1206
1212
1203
2204
Max.
25.0
+1.0
+2.0
1.25
30%
+1.0
-8.0
152
389
489
2.5
0.4
1.0
-
-
-
-
-
-
Units
Baud
Baud
Baud
Baud
Baud
D/614/4
dBV
dBV
V
V
FX614
mA
mA
ms
ms
Hz
Hz
dB
dB
dB
dB
Hz
Hz
Hz
Hz
V
V
DD
DD
A
A
A