Operating Characteristics
For the following conditions unless otherwise specified:
Xtal Frequency = 3.579545MHz, S/N = 16dB, Noise Bandwidth = 5kHz,
V
DD
= 3.0V to 5.0V, Tamb = -40°C to +85°C. 0dB = 775mVrms.
Notes
Min.
Typ.
Max.
Units
DC Parameters
I
(ENABLE = ‘1’)
(ENABLE = ‘1’)
(V = 5.0V)
(V = 3.0V)
DD
1
1
1.0
0.5
1.5
1.0
mA
mA
DD
DD
I
DD
AC Parameters
SIGIN pin
Input Impedance
2
0.1
-38.0
MW
dB
dB
Minimum Input Signal Level
Input Signal Dynamic Range
Signal to Noise Ratio
40.0
16.0
Xtal/Clock Input
‘High’ Pulse Width
‘Low’ Pulse Width
Gain (I/P = 1mVrms at 100Hz)
3
3
100
100
20.0
ns
ns
dB
Level Detector
Must Detect Signal Level
Must Not Detect Signal Level
4
4
-38.0
dB
dB
-50.0
Call Progress Band
Must Detect Range
Must Not Detect Range
7
315
750
650
250
Hz
Hz
Logic Interface
Input Logic “1” Level
Input logic "0" level
Input leakage current (Vin = 0 to V
Input Capacitance
5
5
5
5
6
80%
-5.0
V
V
µA
pF
DD
20%
+5.0
DD
)
DD
10.0
Output logic "1" level (l
= 120µA)
90%
V
DD
OH
Output logic "0" level (l = 360µA)
6
10%
V
DD
OL
Notes: 1. Not including any current drawn from the detector pins by external circuitry.
2. Small signal impedance over the frequency range 100Hz to 2000Hz and at V = 5.0V.
DD
3. Timing for an external input to the XTAL/CLOCK pin.
4. Input signal level at V = 5.0V, scale signal for different V
.
DD
DD
5. ENABLE pin.
6. DETECT pin.
7. Nominal values which are subject to dynamic tolerances within the signal analysis process,
as a result of using stochastic signal processing techniques.
ã 2001 Consumer Microcircuits Limited
10
D/673/5
CMLMICRO [ CML MICROCIRCUITS ]
