參數(shù)資料
型號： AK4650VG
廠商： Asahi Kasei Microsystems Co.,Ltd
元件分類： Codec
英文描述： 16Bit ツヒ CODEC with MIC/HP/SPK-AMP & TSC
中文描述： 16位ツヒ編解碼器麥克風(fēng)/惠普/胰腎聯(lián)合移植腺苷
文件頁數(shù)： 51/86頁
文件大?。?/td> 824K
代理商： AK4650VG
[AK4650]
MS0502-E-01
2007/04
- 51 -
■
Waking up AC-Link
1. AC-Link Power-down
The AK4650 controls the AC-link power-up/down by PR4 and PR5 bits. When PR4 bit is “1”, BITCLK and SDATAIN
go to “L”, but X’tal oscillator still operates. When PR5 bit is “1”, BITCLK and SDATAIN go to “L”, and X’tal oscillator
is powered-down. PLL power-up/down is controlled by VRA bit.
BITCLK/SDATAIN output
PR4 bit = “1”
Stop
PR5 bit = “1”
Stop
VRAbit = “0”
Output
Table 43. AC-Link Power-down
2. AC-Link Power-up
The AK4650 supports the AC-link power-up sequence using SDATAIN output in addition to COLD RESET and WARM
RESET. In this mode the operation is same as WARM RESET when the AK4650 receives the SYNC signal.
CODEC
Sleep State
X’tal oscillator
Normal operation
Stop
Normal operation
PLL
Power Down
Power Down
Power Down
SYNC
BITCLK
SDATAOUT
Slot 12
TAG
WR
26H
Data
PR4
SDATAIN
Slot 12
TAG
TAG
TAG
Slot 1
Slot 2
Slot 1
Slot 2
Power Down
Wake Event
New Audio
Figure 39. AC-Link Wake Up Function by SDATAIN
3. SDATAIN Output
SDATAIN pin goes to “H” when pen interrupt is enable, AC-link is powered-down and pen touch is detected. SDATAIN
pin goes to “L” after SYNC signal is changed to “L” regardless of the pen touch detection. The AK4650 operates same as
WARM RESET by receiving this SYNC signal.
相關(guān)PDF資料
PDF描述
AK4651 16Bit ツヒ CODEC with MIC/HP/SPK-AMP
AK4651VG 16Bit ツヒ CODEC with MIC/HP/SPK-AMP
AK4665A 20-Bit Stereo CODEC with MIC/HP-AMP
AK4665AEN 20-Bit Stereo CODEC with MIC/HP-AMP
AK4671 Stereo CODEC with MIC/RCV/HP-AMP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AK4651 制造商:AKM 制造商全稱:AKM 功能描述:16Bit ツヒ CODEC with MIC/HP/SPK-AMP
AK4651VG 制造商:AKM 制造商全稱:AKM 功能描述:16Bit ツヒ CODEC with MIC/HP/SPK-AMP
AK4664VQ 功能描述:IC CODEC STEREO 20BIT LQFP 制造商:akm semiconductor inc. 系列:* 零件狀態(tài):上次購買時(shí)間 標(biāo)準(zhǔn)包裝:1,000
AK4665A 制造商:AKM 制造商全稱:AKM 功能描述:20-Bit Stereo CODEC with MIC/HP-AMP
AK4665AEN 制造商:AKM 制造商全稱:AKM 功能描述:20-Bit Stereo CODEC with MIC/HP-AMP
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