CMX882 查看數據表（PDF） - CML Microcircuits
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CMX882 Datasheet PDF : 70 Pages
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FRS Signalling Processor
CMX882
AC Parameters (cont.)
Notes
CTCSS Encoder
Frequency Range
Tone Frequency Accuracy
Tone Amplitude Tolerance
61
Total Harmonic Distortion
62
In-band tone Encoder
Frequency Range
Tone Frequency Accuracy
Tone Amplitude Tolerance
63
Total Harmonic Distortion
62
DCS Encoder
Bit Rate
Amplitude Tolerance
61
FFSK/MSK Encoder
Output signal level
Output level variation
Output distortion
3rd harmonic distortion
Logic 1 freq
1200baud and 2400baud
Logic 0 freq
1200baud
2400baud
Isochronous distortion (0 to 1 and 1 to 0)
Min.
60.0
-1.0
400
-1.0
-1.0
-1.0
1198
1798
2398
Typ.
2.0
2.0
134.4
775
1200
1800
2400
Max.
Unit
260
Hz
±0.3
%
+1.0
dB
4.0
%
3000
Hz
±0.3
%
+1.0
dB
4.0
%
+1.0
bits/s
dB
+1.0
5
3
1202
1802
2402
40
mVrms
dB
%
%
Hz
Hz
Hz
µs
Notes: 61
62
63
VDD(A) = 3.0V and TX Sub-Audio Level set to 88mV p-p (31mV rms).
Measured at MOD_1 or MOD_2 output.
VDD(A) = 3.0V and Tx Audio Level set to 871mV p-p (308mV rms).
2004 CML Microsystems Plc
65
D/882/7
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