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參數(shù)資料
| 型號(hào)： | TP11368V |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 編解碼器 |
| 英文描述： | Octal Adaptive Differential PCM Processor |
| 中文描述： | A/MU-LAW, ADPCM CODEC, PQCC28 |
| 封裝： | PLASTIC, LCC-28 |
| 文件頁數(shù)： | 9/18頁 |
| 文件大?。?/td> | 555K |
| 代理商： | TP11368V |
Functional Description
(Continued)
CHANNEL NOP
Each channel can be independently disabled. When EN is at
logic low on the falling edge of CE, the ADPCM transcoder
processing for that channel is disabled. The processor re-
quires 4 CLK cycles for CE to maintain all channel variables.
The data output ports are also placed in known states. After
this the processor waits for the next interrupt. TSO outputs
the following data after a channel NOP:
TABLE 6. TSO at Channel NOP
QSEL1
0
0
1
1
The data pattern at TSO in Table 6 are shown with four
ASCK clocks within the CE high pulse for the 32- , 24-,
16-kbps modes and five ASCK clocks within the CE high
pulse for the 40 kbps mode. In the case where ASCK pulses
are more than four or five, the given pattern recirculates with
the MSB first.
In the idle state, RSO outputs the following data (bit repre-
sentation with the sign-bit on the left followed by the MSB,
the sign-bit is the first bit after the rising edge of CE):
QSEL0
0
1
0
1
Mode
32 kbps
24 kbps
16 kbps
40 kbps
TSO
0 0 0 0
0 0 0 0
0 0 0 0
0 0 0 0 0
TABLE 7. RSO at Channel NOP
PCM1
0
1
Mode
8-Bit μ-Law
8-Bit A-Law
RSO
1 1 1 1 1 1 1 1
1 1 0 1 0 1 0 1
9
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TP11368V/NOPB | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| TP11368VNOPB | 制造商:National Semiconductor 功能描述:Octal Adaptive Differential PCM Processor 28-Pin PLCC Tube |
| TP1138JB/TR | 制造商:Alpha 3 Manufacturing 功能描述: |
| TP1143 | 制造商:2B 功能描述: |
| TP1144 | 制造商:2B 功能描述: |
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