MX643DW 查看數據表（PDF） - CML Microsystems Plc
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MX643DW Datasheet PDF : 12 Pages
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Call Progress Tone Detector
8
Operating Characteristics
For the following conditions unless otherwise specified:
Xtal Frequency = 3.579545MHz, S/N = 16 dB, Noise Bandwidth = 5 kHz,
VDD = 3.3V to 5.0V, TAMB = - 40°C to 85°C. 0dB = 775mVRMS.
DC Parameters
Supply Current
IDD (ENABLE = 1) (VDD = 5.0V)
IDD (ENABLE = 1) (VDD = 3.3V)
Enable Input
Input Logic 1 Level
Input Logic 0 Level
Input Leakage Current (VIN = 0 to VDD)
Input Capacitance
Detect Output
Output Logic 1 Level (lOH = 120µA)
Output Logic 0 Level (lOL = 360µA)
AC Parameters
SIGIN pin
Input Impedance (at 100Hz)
Input Signal Level
Input Signal Dynamic Range
Signal to Noise Ratio
Clock Input
'High' Pulse Width
'Low' Pulse Width
Input Impedance (at 100Hz)
Gain (input = 1mVRMS at 100Hz)
Notes
Min.
1
1
2
80%
2
2
-5.0
2
3
90%
3
4
5
-40
5
40
16
6
40
6
40
10
20
MX643 - Preliminary Information
Typ.
Max.
Units
0.5
1.0
mA
0.3
0.7
mA
VDD
20%
VDD
5.0
µA
10.0
pF
10%
VDD
VDD
350
kΩ
dB
dB
dB
ns
ns
MΩ
dB
Operating Characteristics Notes:
1. Not including any current drawn from the device pins by external circuitry.
2. ENABLE pin.
3. DETECT1, DETECT2 and DETECT3 pins.
4. Small signal impedance.
5. The input level is not critical as the detector uses a stochastic algorithm.
6. Timing for an external input to the CLOCK pin.
© 1996 MX•COM, INC.
Tele: 800 638 5577, 910 744 5050, Fax: 910 744 5054
Doc. #20480148.001
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