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參數(shù)資料
| 型號： | TWL1103PBS |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP32 |
| 封裝： | PLASTIC, QFP-32 |
| 文件頁數(shù)： | 17/32頁 |
| 文件大?。?/td> | 476K |
| 代理商： | TWL1103PBS |
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TWL1103
VOICE-BAND AUDIO PROCESSOR (VBAP
)
SLWS108A – JULY 2000 – JANUARY 2001
24
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PRINCIPLES OF OPERATION
receive operation (continued)
Table 8. Receive-Data Bit Definitions
BIT NO.
COMPANDED
MODE
LINEAR
MODE
1
CD7
LD14
2
CD6
LD13
3
CD5
LD12
4
CD4
LD11
5
CD3
LD10
6
CD2
LD9
7
CD1
LD8
8
CD0
LD7
9
–
LD6
10
–
LD5
11
–
LD4
12
–
LD3
13
–
LD2
14
–
LD1
15
–
LD0
16
–
––
Transmit channel gain control bits always follow the PCM data in time:
CD7 – CD0 = data word in companded mode
LD14 – LD0 = data word in linear mode
DTMF generator operation and interface
The dual-tone multifrequency generator (DTMF) circuit generates the summed DTMF tones for push button
dialing and provides the PDM output for the BUZZCON user-alert tone. There are 255 possible single tones.
The tone integer value is determined by the formula:
Round (tone frequency (Hz)/7.8125 Hz)
The integer value is loaded into either one of two 8-bit registers, high-tone register (04), or low-tone register (05).
The tone output is 2 dB higher when applied to the high-tone register (04). When generating DTMF tones, the
high frequency value must be applied to the high-tone register (04) and the low DTMF value to the low-tone
register.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TWL1103PBSR | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| TWL1103TPBSQ1 | 功能描述:音頻 DSP Auto Cat Voice-Band Audio Processor RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風格: 封裝 / 箱體: 封裝:Tube |
| TWL1103TPBSRQ1 | 功能描述:音頻 DSP Auto Cat Voice-Band Audio Processor RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風格: 封裝 / 箱體: 封裝:Tube |
| TWL1103T-Q1 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Automotive Catalog Voice-Band Audio Processor (VBAP) |
| TWL1106 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:VOICE-BAND AUDIO PROCESSOR (VBAPa?￠) |
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