IN91531 데이터 시트보기 (PDF) - Integral Corp.
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IN91531 Datasheet PDF : 7 Pages
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IN91531
FUNCTIONAL DESCRIPTION
Input Data vs. Output Signal
Parallel binary on D0 - D3 pins are input from microcomputer. Output signal vs. input data is shown in Table 1:
D3
D2
D1
D0
DTMF Signaling
PULSE Signal (O/P Pulse No.)
0
0
0
0
0
10
0
0
0
1
1
1
0
0
1
0
2
2
0
0
1
1
3
3
0
1
0
0
4
4
0
1
0
1
5
5
0
1
1
0
6
6
0
1
1
1
7
7
1
0
0
0
8
8
1
0
0
1
9
9
1
0
1
0
*
10
1
0
1
1
#
11
1
1
0
0
A
12
1
1
0
1
B
13
1
1
1
0
C
14
1
1
1
1
D
Forbidden input
Table 1.
Input Data vs. Output Signal in Test Mode
The IN91531 provides a high speed pulse/tone output for testing consideration. If the M/B input changes state
after the IN91531 is enabled, the test mode is initiated and the device will remain in test mode unless disabled.
Table 2 shows input data vs. output signal in pulse/tone test mode.
D3, D2, D1, D0
Tone O/P Frequencies and Test Mode
Quantity of Pulses
(Pulse O/P Frequencies and Test
Mode, Frequency 480 Hz)
Input In Hex Code Tone Pin O/P Unit DP Pin O/P Unit
DP Pin O/P
0
948.0
Hz
1,331.7 x 8
Hz
10
1
699.1
Hz
1,215.9 x 8
Hz
1
2
1,331.7
Hz
699.1 x 8
Hz
2
3
1,417.9
Hz
699.1 x 8
Hz
3
4
1,215.9
Hz
766.2 x 8
Hz
4
5
1,331.7
Hz
766.2 x 8
Hz
5
6
766.2
Hz
1,471.9 x 8
Hz
6
7
847.4
Hz
1,215.9 x 8
Hz
7
8
1,331.7
Hz
847.4 x 8
Hz
8
3
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