msm7719-01 Oki Semiconductor, msm7719-01 Datasheet - Page 31
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msm7719-01
Manufacturer Part Number
msm7719-01
Description
Echo Canceler With Adpcm Transcoder
Manufacturer
Oki Semiconductor
Datasheet
1.MSM7719-01.pdf
(40 pages)
- Current page: 31 of 40
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¡ Semiconductor
Frequencies of tones (other than DTMF signals) to be generated by the tone generator can be changed.
Tone frequencies can be changed in the Initial mode. See Figure 8 for procedures to change tone
frequencies. The related subaddresses are shown below.
Note: Transmitted Tone Frequency = A ¥ 8.192 (A = frequency)
ex. When frequency = 1000 Hz, 1000 ¥ 8.192 = 9011.2 = 9011d (eliminate after the decimal point) =
2333h
B4 B3 B2 B1 B0
Single tone
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
Table 6 Tone Generator Subaddresses
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
(See Note above)
Subaddress 1
(Frequency 1)
17Ah
17Bh
17Ch
17Dh
178h
179h
17Eh
17Fh
Transmit single tone
MSM7719-01
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