ST5090TQFPTR View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
ST5090TQFPTR Datasheet PDF : 29 Pages
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ST5090
Table 12: Examples of Usual Frequency Selection (Standard frequency tone range)
Description
Tone 250 Hz
Tone 330 Hz
Tone 425 Hz
Tone 440 Hz
Tone 800 Hz
Tone 1330 Hz
DTMF 697 Hz
DTMF 770 Hz
DTMF 852 Hz
DTMF 941 Hz
DTMF 1209 Hz
DTMF 1336 Hz
DTMF 1477 Hz
DTMF 1633 Hz
SOL
LA
SI
DO
RE
MI flat
MI
FA
FA sharp
SOL
SOL sharp
LA
SI
DO
RE
MI
f1 value (decimal)
32
42
54
56
102
170
89
99
109
120
155
171
189
209
50
56
63
67
75
80
84
89
95
100
106
113
126
134
150
169
Theoretic value (Hz)
250
330
425
440
800
1330
697
770
852
941
1209
1336
1477
1633
392
440
494
523.25
587.33
622.25
659.25
698.5
740
784
830.6
880
987.8
1046.5
1174.66
1318.5
Typical value (Hz)
250
328.2
421.9
437.5
796.9
1328.1
695.3
773.4
851.6
937.5
1210.9
1335.9
1476.6
1632.8
390.6
437.5
492.2
523.5
586.0
625.0
656.3
695.3
742.2
781.3
828.2
882.9
984.4
1046.9
1171.9
1320.4
Error %
.00
–.56
–.73
–.56
–.39
–.14
–.24
+.44
–.05
–.37
+.16
–.01
.00
.00
–.30
–.56
–.34
+.04
–.23
+.45
–.45
–.45
+.30
–.34
–.29
+.33
–.34
+.04
–.23
+.14
16/29
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