Calling Line Identifier
MX602 - PRELIMINARY INFORMATION
23
Operating Characteristics
For the following conditions unless otherwise specified:
V
DD
= 3.0V at T
= 25°C and V = 3.3V to 5.5V at T
= - 40 to +85°C, V = 0V
AMB SS
AMB
DD
Xtal Frequency = 3.579545MHz ± 0.1%, 0dBV corresponds to 1.0V
RMS
Notes
Min.
Typ.
Max.
Units
DC Parameters
I
I
I
(ZP input high) at V = 5.0V
1,2
1
1.0
1.0
2.0
µA
mA
mA
DD
DD
DD
DD
(ZP input low) at V = 3.0V
0.5
1.0
DD
(ZP input low) at V = 5.0V
1
DD
Logic 1 input level (RXCLK and XTAL inputs)
Logic 0 input level (RXCLK and XTAL inputs)
Logic input leakage current (V = 0 to V ), XTAL
70%
-1.0
V
V
DD
DD
30%
1.0
µA
IN
DD
input
Output logic 1 level (l = 360µA)
V
DD
- 0.4
V
V
OH
Output logic 0 level (l = 360µA)
0.4
1.0
OL
µA
IRQ output 'off' state current (V
= V
)
DD
OUT
Schmitt Trigger input thresholds (Figure 27)
High going (Vt )
(0.56)(V
)
(0.56)(V ) + 0.6
V
V
HI
DD
DD
Low going (Vt
)
(0.44)(V ) - 0.6
(0.44)(V
)
DD
LO
DD
Tone Alert Detector
'Low' tone nominal frequency
'High' tone nominal frequency
Start of Tone Alert signal to DET high time
2130
2750
40
Hz
Hz
msec
(t
Figure 9)
DTON
0.5
10.0
msec
End of Tone Alert signal to DET and IRQ low time
(t Figure 9)
DTOFF
3
4
To ensure detection:
'Low' tone frequency tolerance
'High' tone frequency tolerance
Tone level of each simultaneously applied tone
2750Hz tone level with respect to 2130Hz
tone level
±20
±30
-2.2
Hz
Hz
-40.0
-7.0
dBV
7.0
dB
Signal to Noise ratio
5
6
20.0
75
dB
Dual Tone Burst Duration
To ensure non-detection:
'Low' tone frequency tolerance
'High' tone frequency tolerance
Level (total)
msec
±75
±95
Hz
Hz
4
-46.0
25
dBV
msec
Dual Tone Burst Duration
FSK Receiver
Transmission rate
1188
1280
2068
1188
2178
-40.0
1200
1300
2100
1200
2200
1212
1320
2132
1212
2222
-8.0
Baud
Hz
V23 Mark (logic 1) frequency
V23 Space (logic 0) frequency
Bell202 Mark (logic 1) frequency
Bell202 Space (logic 0) frequency
Valid input level range
Hz
Hz
Hz
4
dBV
© 1998 MX•COM Inc.
www.mxcom.com Tele: 800 638-5577 336 744-5050 Fax: 336 744-5054
Doc. # 20480136.004
4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA
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