Call Progress Tone Detector
FX633
Operating Characteristics
For the following conditions unless otherwise specified:
Xtal Frequency = 3.579545MHz, S/N = 16 dB, Noise Bandwidth = 5 kHz,
V
DD
= 3.3V to 5.0V, Tamb = - 40°C to +85°C. 0dB = 775mVrms.
Notes
DC Parameters
I
DD
(ENABLE = "1")
I
DD
(ENABLE = "1")
(V
DD
= 5.0V)
(V
DD
= 3.3V)
1
1
Min.
Typ.
0.5
0.3
Max.
1.0
0.7
Units
mA
mA
AC Parameters
SIGIN pin
Input Impedance
Minimum Input Signal Level
Input Signal Dynamic Range
Signal to Noise Ratio
Xtal/Clock Input
'High' Pulse Width
'Low' Pulse Width
Input Impedance (at 100Hz)
Gain (I/P = 1mV rms at 100Hz)
Logic Interface
Input Logic "1" Level
Input Logic "0" Level
Input Leakage Current (Vin = 0 to V
DD
)
Input Capacitance
Output Logic "1" Level (l
OH
= 120µA)
Output Logic "0" Level (l
OL
= 360µA)
2
3
3
0.35
-40
40
16
M
Ω
dB
dB
dB
4
4
40
40
10
20
ns
ns
M
Ω
dB
5
5
5
5
6
6
80%
−
5.0
20%
+5.0
10.0
90%
10%
V
DD
V
DD
µA
pF
V
DD
V
DD
Notes:
1.
2.
3.
4.
5.
6.
Not including any current drawn from the device pins by external circuitry.
Small signal impedance over the frequency range 100Hz to 2000Hz and at 5.0V.
The input level is not critical as the detector uses a stochastic algorithm.
Timing for an external input to the XTAL/CLOCK pin.
ENABLE pin.
DETECT1 and DETECT2 pins.
©
1996 Consumer Microcircuits Limited
9
D/633/3
CMLMICRO [ CML MICROCIRCUITS ]
