MIL-DTL-62741A(AT)
3.3.7.4 Filter select and attenuation. The -3 dB 2-pole low-pass filter frequencies shown
in table IV shall be selected when the data bits shown are applied in accordance with the
waveforms shown in figure 4. Each filter frequency selected shall conform to the attenuations
shown in table V where fo is the selected -3 dB frequency.
TABLE IV. Filter select.
-3 dB
BUS
Freq.
7
6
5
4
3
2
1
0
6 Hz 1/
X
X
X
X
0
0
X
X
60 Hz
X
X
X
X
0
1
X
X
600 Hz
X
X
X
X
1
0
X
X
6 kHz
X
X
X
X
1
1
X
X
(X denotes a don't care condition.)
1/ Hz = hertz
TABLE V. Filter attenuation.
Max. attenuation at
Minimum attenuation at
(fo)/10
(fo)
10(fo)
-0.1 dB
-2.36 dB
-26.4 dB
3.3.8 ADCON. The ADCON (U15) shall begin converting the voltage present at U15-13
to a binary weighted word (12-bits) when a positive pulse, of no less than 100 ns in duration, is
applied to U15-18. The conversion shall be complete 25 microseconds (µs) after the rising edge
of the positive pulse applied to U15-18. The ADCON output shall conform to bit patterns
(+2 LSB) in table VI for the voltages shown.
TABLE VI. ADCON conversion.
ADCON MSB
ADCON LSB
BUS
BUS
Input
voltage
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
4.997 V
0
X
0
X
1
0
0
0
0
0
0
0
0
0
0
0
4.500 V
0
X
0
X
1
0
0
0
1
1
0
0
1
1
0
0
4.000 V
0
X
0
X
1
0
0
1
1
0
0
1
1
0
0
1
3.500 V
0
X
0
X
1
0
1
0
0
1
1
0
0
1
0
1
3.000 V
0
X
0
X
1
0
1
1
0
0
1
1
0
0
1
0
2.500 V
0
X
0
X
1
0
1
1
1
1
1
1
1
1
1
1
2.000 V
0
X
0
X
1
1
0
0
1
1
0
0
1
1
0
0
1.500 V
0
X
0
X
1
1
0
1
1
0
0
1
1
0
0
1
1.000 V
0
X
0
X
1
1
1
0
0
1
1
0
0
1
0
1
0.500 V
0
X
0
X
1
1
1
1
0
0
1
1
0
0
1
0
0.000 V
0
X
0
X
1
1
1
1
1
1
1
1
1
1
1
1
-0.500 V
0
X
1
X
0
0
0
0
1
1
0
0
1
1
0
0
-1.000 V
0
X
1
X
0
0
0
1
1
0
0
1
1
0
0
1
-1.500 V
0
X
1
X
0
0
1
0
0
1
1
0
0
1
0
1
-2.000 V
0
X
1
X
0
0
1
1
0
0
1
1
0
0
1
0
-2.500 V
0
X
1
X
0
0
1
1
1
1
1
1
1
1
1
1
7
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