CMX808AP4 View Datasheet(PDF) - MX-COM Inc
Part Name
Description
MFG CO.
'CMX808AP4' PDF : 22 Pages View PDF
Family Radio Service CTCSS Processor
19
CMX808A Preliminary Information
6.1.3 Operating Characteristics
For the following conditions unless otherwise specified:
Xtal Frequency = 4.0MHz, Audio Level 0dB ref. = 308mVRMS at 1kHz
VDD = 3.0V to 5.0V, TAMB = -40°C to +85°C,
Composite Signal = 308mVRMS at 1kHz + 75mVRMS Noise + 31mVRMS Sub-Audio Signal
Noise Bandwidth = 5kHz Band Limited Gaussian
DC Parameters
At VDD = 3.0V
IDD (powersaved)
IDD (Encoder or Decoder only Operating)
At VDD = 5.0V
IDD (powersaved)
IDD (Encoder or Decoder only Operating)
"C-BUS" Interface
Input Logic "1"
Input Logic "0"
Input Leakage Current (Logic "1" or "0")
Input Capacitance
Output Logic "1" (IOH = 120µA)
Output Logic "0" (IOL = 360µA)
"Off" State Leakage Current (VOUT = VDD)
AC Parameters
CTCSS Decoder
Sensitivity (Pure CTCSS Tone)
Response Time (Composite Signal)
De-Response Time (Composite Signal)
Frequency Range
CTCSS Encoder
Frequency Range
Tone Frequency Resolution
Tone Amplitude Tolerance
Total Harmonic Distortion
Audio Band-Pass Filter
Passband
Passband Gain (at 1.0kHz)
Passband Ripple (with respect to gain at 1.0kHz)
Stopband Attenuation
Residual Hum and Noise
Alias Frequency
Audio Attenuator
Nominal Adjustment Range
Attenuation Accuracy
Step Size
Notes
2
2
2
2
3
5
1
6
6
6
6
Min. Typ. Max. Units
0.2 0.3 mA
1.3
2.0
mA
0.5 0.8 mA
3.2
4.8
mA
70%
-1.0
90%
VDD
30% VDD
1.0
µA
7.5
pF
VDD
10% VDD
10.0 µA
-26.0
dB
140
ms
145
ms
60.0
251 Hz
60.0
251 Hz
0.3
%
-1.0
0
1.0
dB
3.0
%
350
3000 Hz
-
0
dB
-2.0
+0.5 dB
30.0
dB
-50.0
dBp
62.5
kHz
0
48
dB
-1.5
1.5
dB
1.6
dB
©1999 MX-COM, Inc.
www.mxcom.com tel: 800 638 5577 336 744 5050 fax: 336 744 5054
Doc. # 20480199.002
4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA
All trademarks and service marks are held by their respective companies.
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