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參數(shù)資料
| 型號： | MT9094 |
| 廠商： | Mitel Networks Corporation |
| 英文描述： | Digital Telephone (DPhone-II)(數(shù)字電話) |
| 中文描述： | 數(shù)字電話（DPhone -Ⅱ）（數(shù)字電話） |
| 文件頁數(shù)： | 19/34頁 |
| 文件大?。?/td> | 234K |
| 代理商： | MT9094 |
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MT9094
7-63
ADDRESS 25h is RESERVED
Addresses: 27h to 2Dh are transmit and receive gains and coefficients used by the filters in the handsfree
decision circuit.
2Eh to 3Fh are scratch-pad ram locations used by the DSP algorithms as temporary storage dur-
ing calculations.
This register is used to program the low-group frequency of the DTMF program. The tone coefficient is calculated as follows:
COEF = 0.128 x Frequency
where: Frequency is in Hz (note: COEF must be converted to an 8 bit binary integer)
Highest frequency possible:
1992.2 Hz
Lowest frequency possible:
7.8 Hz
Frequency resolution:
7.8 Hz
Pre-twist:
-2.1dB
±
0.2dB
This register is used to program the first frequency of the squarewave ringer program. The tone coefficient is calculated as follows:
COEF = 8000 / Frequency
where: Frequency is in Hz (note: COEF must be rounded off and converted to an 8 bit binary integer)
Highest frequency possible:
4000 Hz
Lowest frequency possible:
31.4 Hz
Frequency resolution:
non-linear
This tone can be disabled by writing zero to this register for single tone generation.
Tone Coeff Register 1-DTMF or Tone Ringer
ADDRESS = 23h WRITE/READ VERIFY
Power Reset Value
0000 0000
7
6
5
4
3
2
1
0
B7
B6
B5
B4
B3
B1
B2
B0
This register is used to program the high-group frequency of the DTMF program. The tone coefficient is calculated as follows:
COEF = 0.128 x Frequency
where: Frequency is in Hz (note: COEF must be converted to an 8 bit binary integer)
Highest frequency possible:
1992.2 Hz
Lowest frequency possible:
7.8 Hz
Frequency resolution:
7.8 Hz
Pre-twist:
0dB
This register is used to program the second frequency of the squarewave program. The tone coefficient is calculated similarly to tone
coefficient register 1.
Tone Coeff Register 2-DTMF or Tone Ringer
ADDRESS = 24h WRITE/READ VERIFY
Power Reset Value
0000 0000
7
6
5
4
3
2
1
0
B7
B6
B5
B4
B3
B1
B2
B0
The tone ringer will switch between squarewave frequencies at a warble frequency defined by this register. The relationship between
the duration period of each tone and the 8 bit warble coefficient is as follows:
Tone duration (warble frequency) = 500 / COEF
where: Frequency is in Hz, and 0
≤
COEF <256
Highest frequency possible:
500 Hz
Lowest frequency possible:
2.0 Hz
Frequency resolution:
non-linear
Tone Ringer Warble Rate-Tone Ringer
ADDRESS = 26h WRITE/READ VERIFY
Power Reset Value
0000 0000
7
6
5
4
3
2
1
0
B7
B6
B5
B4
B3
B1
B2
B0
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MT9122 | Dual Voice Echo Canceller with Tone Detection(雙話音回聲消除器（帶音調(diào)檢測功能）) |
| MT9122AE | CMOS Dual Voice Echo Canceller with Tone Detection |
| MT9122AP | CMOS Dual Voice Echo Canceller with Tone Detection |
| MT9123AE | CMOS Dual Voice Echo Canceller |
| MT9123 | Dual Voice Echo Canceller(雙話音回聲消除器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MT9094AP | 制造商:Microsemi Corporation 功能描述: 制造商:Mitel Networks Corporation 功能描述: |
| MT9094AP1 | 制造商:Microsemi Corporation 功能描述:DGTL TEL 44PLCC - Rail/Tube |
| MT9094APR1 | 制造商:Microsemi Corporation 功能描述:DGTL TEL 44PLCC - Tape and Reel 制造商:Zarlink Semiconductor Inc 功能描述:DGTL TEL 44PLCC - Tape and Reel |
| MT9122 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:CMOS Dual Voice Echo Canceller with Tone Detection |
| MT9122AE | 制造商:Microsemi Corporation 功能描述:ECHO CANCELLER CHIP 2CH G.164/G.165/G.711 W/ TONE DETECTION - Rail/Tube |
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