fx604 Consumer Microcircuits Limited, fx604 Datasheet - Page 14

• Manufacturer Part Number: fx604
• Description: V23 Compatible Modem
• Manufacturer: Consumer Microcircuits Limited

V.23 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 75bits/sec (M1='0', M0='0').
1996 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
Acceptable 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
Space (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
DD
DD
OH
OL
= 5.0V
= 360 A)
= 3.0V
= 360 A)
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
1280
2068
1188
1194
1297
2097
DD
20.0
Min.
70%
-7.0
-1.0
-2.0
-1.0
388
448
8.0
0
0
0
-
-
-
-
-
-
-
-
-0.4
1200
1300
2100
1200
1200
Typ.
1.0
1.7
75
0
0
1
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-40.0
1212
1320
2132
1212
1206
1212
1303
2103
Max.
+7.0
25.0
+1.0
+2.0
1.25
30%
+1.0
-8.0
392
452
2.5
0.4
1.0
76
-
-
-
-
-
Units
Baud
Baud
Baud
Baud
Baud
D/604/3
dBV
dBV
V
V
FX604
mA
mA
ms
ms
Hz
Hz
dB
dB
dB
dB
Hz
Hz
Hz
Hz
V
V
DD
DD
A
A
A