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FX602D4 Datasheet(PDF) 26 Page - CML Microcircuits

Part No. FX602D4
Description  CALLING LINE IDENTIFIER
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Maker  CMLMICRO [CML Microcircuits]
Homepage  http://www.cmlmicro.com
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FX602D4 Datasheet(HTML) 26 Page - CML Microcircuits

 
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Calling Line Identifier
FX602
© 1998 Consumer Microcircuits Limited
26
D/602/7
Notes
Min.
Typ.
Max.
Units
FSK Receiver
Transmission rate
1188
1200
1212
Baud
V23 Mark (logical 1) frequency
1280
1300
1320
Hz
V23 Space (logical 0) frequency
2068
2100
2132
Hz
Bell202 Mark (logical 1) frequency
1188
1200
1212
Hz
Bell202 Space (logical 0) frequency
2178
2200
2222
Hz
Valid input level range
4
-40.0
-8.0
dBV
Acceptable twist (mark level wrt space level)
V23
-7.0
+7.0
dB
Bell202
-10.0
+10.0
dB
Acceptable Signal to Noise ratio
V23
5
20.0
dB
Bell202
5
30.0
dB
Level Detector 'on' threshold level
4
-40.0
dBV
Level Detector 'off' to 'on' time (Fig 4 Teon)
25.0
msec
Level Detector 'on' to 'off' time (Fig 4 Teoff)
8.0
msec
Input Signal Amplifier
Input impedance
7
10.0
M
Voltage gain
500
V/V
XTAL Input
'High' pulse width
8
100
ns
'Low' pulse width
8
100
ns
Notes:
1.
At 25
°C, not including any current drawn from the FX602 pins by external circuitry other than
X1, C1 and C2.
2.
RD, MODE, RXCK inputs at VSS, ZP input at VDD. See also Figure 11.
3.
All conditions must be met to ensure detection.
4.
For VDD= 5.0V with equal level tones and with the input signal amplifier external components
as section 1.4. The internal threshold levels are proportional to VDD. To cater for other supply
voltages or different signal level ranges the voltage gain of the input signal amplifier should be
adjusted by selecting the appropriate external components as described in section 1.5
5.
Flat noise in 300-3400Hz band for V23, 200 - 3200Hz for Bell202.
6.
Meeting any of these conditions will ensure non-detection.
7.
Open loop, small signal low frequency measurements.
8.
Timing for an external input to the CLOCK/XTAL pin.


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