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參數(shù)資料
| 型號： | AK2306 |
| 廠商： | Asahi Kasei Microsystems Co.,Ltd |
| 元件分類： | Codec |
| 英文描述： | Dual PCM CODEC for ISDN/VoIP TERMINAL ADAPTER |
| 中文描述： | 雙的PCM編解碼器對ISDN / VoIP終端適配器 |
| 文件頁數(shù)： | 16/38頁 |
| 文件大小： | 469K |
| 代理商： | AK2306 |
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ASAHI K ASEI
[AK 2306/LV]
POWER DOWN
Power consumption is reduced in the power down mode.
In the power down mode, the current fed to analog circuits and the clock for digital circuits, are stopped, and the
relating circuits hold its status.
There are two power down modes.
- Power down for all circuits
- Power down by block
* In the power down mode, the output pins of corresponding blocks turn to Hi-Z except TNOUT pin.(See page 5)
POWER DOWN MODE SETTING
2 power down modes
MS0093-E -04 16 2001/11
Mode
Circuits
Registers
Operation for “0”/”1”
Note
All circuit
All
PD
”0” : Normal
”1” : Power down
- CPU Registers are not reset.
- Serial I/F is available.
- No need to supply FS, BCLK.
CODEC
CH0
PDCH0
CODEC
CH1
PDCH1
Block
RING
TONEGEN
PDTN
”0” : Normal
”1” : Power down
- Keep supplying FS, even when CODEC
CH0,1 are in power down mode (see
page10,11).
- When CODEC CHn(n=0,1) is in power
down mode, the functions below are active:
(1) AMPTn(n=0,1) Input/Output
(2) TNOUT Output
Please refer next page table in deltail.
CANCELLATION OF POWER DOWN : CODEC
When power down mode for CODEC CH0/CH1 is cleared, the CODEC circuitry starts to be initialized.
It takes 130mS(typ.).
When full circuit power down mode for CODEC is cleared, AK2306/LV starts the same wake up sequence as
one at power on. It takes 250ms(Typ)
Wake up time for Tone generator is 125us(Typ).
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| AK2306LV | Dual PCM CODEC for ISDN/VoIP TERMINAL ADAPTER |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AK2306LV | 制造商:AKM 制造商全稱:AKM 功能描述:Dual PCM CODEC for ISDN/VoIP TERMINAL ADAPTER |
| AK2306LVM | 制造商:AKM 制造商全稱:AKM 功能描述:ISDN/VoIP?????????????????￠???????????¨ ????????￡??3?????? ??°??￡??-??3???????????ˉ ?????3??? |
| AK2306VM | 制造商:AKM 制造商全稱:AKM 功能描述:ISDN/VoIP?????????????????￠???????????¨ ????????￡??3?????? ??°??￡??-??3???????????ˉ ?????3??? |
| AK2307 | 制造商:AKM 制造商全稱:AKM 功能描述:SPEECH CODEC for Digital Key telephone (5.0V/3.3V) |
| AK2307LV | 制造商:AKM 制造商全稱:AKM 功能描述:SPEECH CODEC for Digital Key telephone (5.0V/3.3V) |
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