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參數(shù)資料
| 型號： | TWL1103TPBSRQ1 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP32 |
| 封裝： | PLASTIC, TQFP-32 |
| 文件頁數(shù)： | 16/30頁 |
| 文件大?。?/td> | 458K |
| 代理商： | TWL1103TPBSRQ1 |
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TWL1103T Q1
VOICEBAND AUDIO PROCESSOR (VBAP)
SGLS120B APRIL 2002 REVISED APRIL 2008
23
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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| 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?￠) |
| TWL1106PWR | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| TWL1107 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:VOICE-BAND AUDIO PROCESSOR (VBAP?￡a) |
| TWL1107PW | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
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