FX643 Consumer Microcircuits Limited, FX643 Datasheet - Page 10

• Manufacturer Part Number: FX643
• Description: Call Progress Tone Detector
• Manufacturer: Consumer Microcircuits Limited

Call Progress Tone Detector
Operating Characteristics
For the following conditions unless otherwise specified:
Notes:
DC Parameters
AC Parameters
Clock Input
Logic Interface
1996 Consumer Microcircuits Limited
I
I
SIGIN pin
Input Impedance (at 100Hz)
Minimum Input Signal Level
Input Signal Dynamic Range
Signal to Noise Ratio
'High' Pulse Width
'Low' Pulse Width
Input Impedance (at 100Hz)
Gain (I/P = 1mV rms at 100Hz)
Input Logic "1" Level
Input Logic "0" Level
Input Leakage Current (Vin = 0 to V
Input Capacitance
Output Logic "1" Level (l
Output Logic "0" Level (l
DD
DD
(ENABLE = "1")
(ENABLE = "1")
Xtal Frequency = 3.579545MHz, S/N = 16 dB, Noise Bandwidth = 5 kHz,
V
DD
1. Not including any current drawn from the device pins by external circuitry.
2. Small signal impedance over the frequency range 100Hz to 2000Hz and at 5.0V.
3. The input level is not critical as the detector uses a stochastic algorithm.
4. Timing for an external input to the XTAL/CLOCK pin.
5. ENABLE pin.
6. DETECT1, DETECT2 and DETECT3 pins.
= 3.3V to 5.0V, Tamb = - 40°C to +85°C. 0dB = 775mVrms.
OH
OL
(V
(V
DD
DD
= 360µA)
= 120µA)
= 5.0V)
= 3.3V)
DD
)
10
Notes
1
1
2
3
3
4
4
5
5
5
5
6
6
Min.
80%
90%
40
16
40
40
10
20
5.0
Typ.
0.35
10.0
-40
0.5
0.3
Max.
20%
+5.0
10%
1.0
0.7
Units
V
V
V
V
M
M
mA
mA
D/643/4
dB
dB
dB
dB
µA
pF
ns
ns
FX643
DD
DD
DD
DD