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參數(shù)資料
| 型號： | MSM7575 |
| 廠商： | OKI SEMICONDUCTOR CO., LTD. |
| 元件分類： | Codec |
| 英文描述： | Multi-Function ADPCM CODEC(多功能ADPCM(自適應(yīng)差分脈沖編碼調(diào)制）編碼譯碼器) |
| 中文描述： | 多功能差分PcM編解碼器（多功能差分PcM（自適應(yīng)差分脈沖編碼調(diào)制）編碼譯碼器） |
| 文件頁數(shù)： | 22/25頁 |
| 文件大?。?/td> | 187K |
| 代理商： | MSM7575 |
22/25
Semiconductor
MSM7575
(5) CR4 (Tone genereator operating mode and frequency setting)
(b) B7 = 0 (Other tones)
Table-5-2 Tone Generator Frequency Setting
B7 ... DTMF or Other tones select : 0/Others, 1/DTMF
B6 ... Tone transmit enable (Transmit side) : 0/Voice signal (transmit), 1/Tone transmit
B5 ... Tone output pin select (Receive side) : 0/VFRO, 1/SAO
B4, B3, B2, B1, B0 ... Tone frequency setting, referred to Table-5-1, -2.
(a) B7 = 1 (DTMF tone)
Table-5-1
*Unrelated
DTMF/OTHERS
SEL
Initial Value
CR4
TONE
SEND
SAO/
VFRO
TONE4
TONE3
TONE2
TONE1
TONE0
0
0
0
0
0
0
0
0
B7
B6
B5
B4
B3
B2
B1
B0
B4
*
*
*
*
*
*
*
*
B3
0
0
0
0
0
0
0
0
B2
0
0
0
0
1
1
1
1
B1
0
0
1
1
0
0
1
1
B0
0
1
0
1
0
1
0
1
Frequency
697 Hz + 1209 Hz
697 Hz + 1336 Hz
697 Hz + 1477 Hz
697 Hz + 1633 Hz
770 Hz + 1209 Hz
770 Hz + 1336 Hz
770 Hz + 1477 Hz
770 Hz + 1633 Hz
B4
*
*
*
*
*
*
*
*
B3
1
1
1
1
1
1
1
1
B2
0
0
0
0
1
1
1
1
B1
0
0
1
1
0
0
1
1
B0
0
1
0
1
0
1
0
1
Frequency
852 Hz + 1209 Hz
852 Hz + 1336 Hz
852 Hz + 1477 Hz
852 Hz + 1633 Hz
941 Hz + 1209 Hz
941 Hz + 1336 Hz
941 Hz + 1477 Hz
941 Hz + 1633 Hz
B4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
B3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
B2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
B1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
B0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Frequency
2 k/2.48 kHz, 8 Hz wamble
2 k/2.2 kHz, 8 Hz wamble
2 k/2.48 kHz, 4 Hz wamble
2 k/2.2 kHz, 4 Hz wamble
1 k/1.333 kHz, 8 Hz wamble
2.73 k/2.5 kHz, 8 Hz wamble
1.8 k/2 kHz, 8 Hz wamble
400 Hz,16 Hz wamble
400 Hz,20 Hz wamble
400 Hz
350 Hz + 440 Hz Mix
1.5kHz
1.8kHz
800 Hz
1000 Hz
1300 Hz
B4
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
B3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
B2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
B1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
B0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Frequency
2000 Hz
2042 Hz
2514 Hz
500 Hz
667 Hz
1333 Hz
2100 Hz
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| MSM7578H | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:Single Rail CODEC |
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