- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄378017 > MSM7581 (OKI SEMICONDUCTOR CO., LTD.) ITU-T G.721 4ch ADPCM TRANSCODER PDF資料下載
參數(shù)資料
| 型號(hào)： | MSM7581 |
| 廠商： | OKI SEMICONDUCTOR CO., LTD. |
| 英文描述： | ITU-T G.721 4ch ADPCM TRANSCODER |
| 中文描述： | ITU - T的G.721 4路差分PcM碼器 |
| 文件頁(yè)數(shù)： | 7/18頁(yè) |
| 文件大?。?/td> | 165K |
| 代理商： | MSM7581 |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)當(dāng)前第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)
7/18
Semiconductor
MSM7581
RES1
,
RES2
,
RES3
,
RES4
Algorithm reset signal input pins for each Channel (1 - 4) .
When digital “0” is applied, the entire transcoder goes to the initial state.
This reset is defined by ITU-T G.721 and is an optional reset.
The reset width (during "L") should be 125
m
s or more.
BCKA1 - 4
Bit clock input pins used to define the data transmission speed at the ADPCM interface.
Using these pins, the ADPCM data interface can be defined at a speed other than the PCM data
interface.
V
DD
Power supply.
The device must operate between +2.7 V and +5.5 V.
PLCKEN
Input pin which enables the output of an 8 kHz clock from the PLLs.
This pin generates the internal master clocks. The 8 kHz clocks from the internal PLLs
synchronized with external signals applied to SYXA 1 - 4 are output to PLCK 1 - 4.
Set this pin at digital "0" during normal operation since it is used as the control pin for testing the
IC.
PLCK1 - 4
Output pins of the 8 kHz clock from PLLs.
When PLCKEN = "1", the 8 kHz clock pulses synchronized with external signals are applied to
SYXA1 - 4 outputs. When PLCKEN = "0", "0" level is output to these pins.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MSM7582 | pie/4 Shift QPSK MODEM |
| MSM7582B | pie/4 Shift QPSK MODEM |
| MSM7583GS-BK | pie/4 Shift QPSK MODEM |
| MSM7583 | pie/4 Shift QPSK MODEM |
| MSM7584C | π/4 Shift QPSK MODEM(π/4移動(dòng)QPSK調(diào)制解調(diào)器/ADPCM編碼譯碼器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MSM7582 | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:pie/4 Shift QPSK MODEM |
| MSM7582B | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:pie/4 Shift QPSK MODEM |
| MSM7583 | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:pie/4 Shift QPSK MODEM |
| MSM7583GS-BK | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:pie/4 Shift QPSK MODEM |
| MSM7584C | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:pi /4 Shift QPSK MODEM/ADPCM CODEC |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。