Calling Line Identifier
CMX602A
Operating Characteristics
For the following conditions unless otherwise specified:
V
DD
= 2.7V at Tamb = -10 to +60°C and V = 3.3V to 5.5V at Tamb = -40 to +85°C,
DD
Xtal Frequency = 3.579545MHz ± 0.1%
0dBV corresponds to 1.0Vrms
Notes
Min.
Typ.
Max.
Units
DC Parameters
I
I
I
(ZP input high) at V = 5.0V
1,2
1
1
0.02
0.5
1.0
1.0
1.0
2.0
µA
mA
mA
DD
DD
DD
DD
(ZP input low) at V = 3.0V
DD
(ZP input low) at V = 5.0V
DD
Logic '1' input level (RXCK and XTAL inputs)
Logic '0' input level (RXCK and XTAL inputs)
70%
-1.0
V
V
µA
DD
30%
+1.0
DD
Logic input leakage current (Vin = 0 to V
excluding XTAL input
)
DD
Output logic '1' level (l = 360µA)
V
DD
- 0.4
V
V
µA
OH
Output logic '0' level (l = 360µA)
0.4
1.0
OL
IRQN o/p 'off' state current (Vout = V
)
DD
Schmitt Trigger input thresholds, see fig 10
High going (Vthi)
0.56V
0.44V
0.56V
+ 0.6V
V
V
DD
DD
Low going (Vtlo)
0.44V
DD
DD
- 0.6V
Tone Alert Detector
'Low' tone nominal frequency
'High' tone nominal frequency
Start of Tone Alert signal to DET high time
(Fig. 6 Tton)
2130
2750
55.0
Hz
Hz
ms
End of Tone Alert signal to DET and IRQN low
time (Fig 6 Ttoff)
DET high time to ensure IRQN goes low
(Fig 6 TqCAS)
0.5
8.0
10.0
45.0
ms
ms
To ensure detection:
3
4
5
'Low' tone frequency tolerance
'High' tone frequency tolerance
Level (per tone)
2750Hz tone level wrt
2130Hz tone level
Signal to Noise ratio
±20
±30
-2.2
Hz
Hz
dBV
-40.0
-7.0
20.0
75
+7.0
85
dB
dB
ms
ms
Dual tone burst duration for DET output
Dual tone burst duration to ensure
IRQN goes low
75
To ensure non-detection:
'Low' tone frequency tolerance
'High' tone frequency tolerance
Level (total)
6
4
±75
±95
Hz
Hz
dBV
ms
-46.0
45.0
Dual tone burst duration
ã 1998 Consumer Microcircuits Limited
20
D/602A/4
CMLMICRO [ CML MICROCIRCUITS ]
