CMX602A View Datasheet(PDF) - MX-COM Inc
Part Name
Description
Manufacturer
CMX602A Datasheet PDF : 21 Pages
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Calling Line Identifier/Calling Line Identifier on Call Waiting 19
CMX602A PRELIMINARY INFORMATION
To ensure non-detection:
'Low' tone frequency deviation from
nominal
'High' tone frequency deviation from
nominal
Level (total)
Dual Tone Burst Duration
FSK Receiver
Transmission rate
V23 Mark (logic 1) frequency
V23 Space (logic 0) frequency
Bell202 Mark (logic 1) frequency
Bell202 Space (logic 0) frequency
Valid input level range
Acceptable twist (mark level with respect
to space level)
V23
Bell202
Acceptable Signal to Noise ratio
V23
Bell202
Level Detector 'on' threshold level
Level Detector 'off' to 'on' time (tDFON
Figure 6)
Level Detector 'on' to 'off' time
(tDFOFF Figure 6)
Input Signal Amplifier
Input impedance
Voltage gain
XTAL Input
'High' pulse width
'Low' pulse width
Notes
6
4
4
5
5
4
7
8
8
Min.
±75
±95
1188
1280
2068
1188
2178
-40.0
-7.0
-10.0
20.0
30.0
8.0
10.0
100
100
Typ.
1200
1300
2100
1200
2200
500
Max.
-46.0
45.0
1212
1320
2132
1212
2222
-8.0
7.0
10.0
-40.0
25.0
Units
Hz
Hz
dBV
ms
Baud
Hz
Hz
Hz
Hz
dBV
dB
dB
dB
dB
dBV
ms
ms
M:
V/V
ns
ns
Operating Characteristics Notes:
1. At 25qC, not including any current drawn from the CMX602A pins by external circuitry other than X1, C1,
and C2.
2. RD, MODE, RXCLK inputs at VSS, ZP input at VDD. See Figure 17.
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 shown
in Section 3. The internal threshold levels are proportional to VDD. 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 4.2
5. Flat Noise in the 300Hz-3400Hz band for V23 and 200Hz-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 XTAL pin.
¤1999 MX-COM, Inc
www.mxcom.com Tel: 800 638 5577 336 744 5050 Fax: 336 744 5054
Doc. # 20480169.004
4800 Bethania Station Road, Winston-Salem, NC 27105-1201, USA All trademarks and service marks are held by their respective companies.
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