CMX602BD4 MX-COM, Inc., CMX602BD4 Datasheet - Page 19

• Manufacturer Part Number: CMX602BD4
• Description: Calling line identifier plus call waiting
• Manufacturer: MX-COM, Inc.

Calling Line Identifier plus Call Waiting (Type II)
FSK Receiver
Input Signal Amplifier
XTAL Input
Operating Characteristics Notes:
1. At 25 C, not including any current drawn from the CMX602B pins by external circuitry other than X1, C1,
2. RD, MODE, RXCLK inputs at V
3. All conditions must be met to ensure detection.
4. For V
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.
4800 Bethania Station Road, Winston-Salem, NC 27105-1201, USA
2000 MX-COM, Inc
To ensure non-detection:
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)
Acceptable Signal to Noise ratio
Level Detector 'on' threshold level
Level Detector 'off' to 'on' time (t
Figure 6)
Level Detector 'on' to 'off' time
(t
Input impedance
Voltage gain
'High' pulse width
'Low' pulse width
DFOFF
'Low' tone frequency deviation from
nominal
'High' tone frequency deviation from
nominal
Level (total)
Dual Tone Burst Duration
V23
Bell202
V23
Bell202
and C2.
in Section 3. The internal threshold levels are proportional to V
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
Figure 6)
DD
= 3.3V with equal level tones and with the input signal amplifier external components as shown
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DFON
SS
, ZP input at V
Notes
6
4
4
5
5
4
7
8
8
DD
19
. See Figure 17.
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-40.0
-10.0
1188
1280
2068
1188
2178
Min.
20.0
30.0
10.0
±75
±95
-6.0
100
100
8.0
DD
. For other supply voltages or different
CMX602B PRELIMINARY INFORMATION
1200
1300
2100
1200
2200
Typ.
500
-46.0
-40.0
Max.
1212
1320
2132
1212
2222
45.0
10.0
25.0
-8.0
6.0
Doc. # 20480204.002
Units
Baud
dBV
dBV
dBV
M
V/V
ms
ms
ms
Hz
Hz
Hz
Hz
Hz
Hz
dB
dB
dB
dB
ns
ns