參數(shù)資料
型號(hào)： AK4682
廠商： Asahi Kasei Microsystems Co.,Ltd
元件分類： Codec
英文描述： Multi-channel CODEC with 2Vrms Stereo Selector
中文描述： 多通道選擇與2Vrms的立體聲編解碼器
文件頁(yè)數(shù)： 29/43頁(yè)
文件大?。?/td> 667K
代理商： AK4682
[AK4682]
MS0610-E-01
2007/07
- 29 -
■
Reset Function
When RSTN bit = “0”, ADC and DACs are powered-down but the internal register are not initialized. The DAC outputs
go to AVDD2 voltage and SDTOB pins go to “L”. Because some click noise occurs, the analog output should muted
externally if the click noise influences system application. The Figure 13 shows the power-up sequence.
RSTN bit
ADC Internal
State
Normal Operation
Digital Block Power-down
Normal Operation
Don’t care
GD
GD
Clock In
MCLK,LRCK,SCLK
ADC In
(Analog)
“0”data
ADC Out
(Digital)
Normal Operation
Normal Operation
DAC Internal
State
“0”data
DAC In
(Digital)
DAC Out
(Analog)
GD
GD
(2)
(2)
(3)
(4)
(6)
(6)
(7)
Internal
RSTN bit
Digital Block Power-down
1~2/fs (8)
4~5/fs (8)
(5)
516/fs
Init Cycle
(1)
Notes:
(1) The analog part of ADC is initialized after exiting the reset state.
(2) Digital output corresponding to analog input and analog output corresponding to digital input have the group
delay (GD).
(3) ADC output is “0” data at the power-down state.
(4) Click noise occurs when the internal RSTN bit becomes “1”. Please mute the digital output externally if the click
noise influences system application.
(5) When RSTN bit = “0”, the analog outputs go to AVDD2 voltage.
(6) Click noise occurs at 4
～
5/fs after RSTN bit becomes “0”, and occurs at 1
～
2/fs after RSTN bit becomes “1”. This
noise is output even if “0” data is input.
(7) The external clocks (
MCLKA (MCLKB),
BICKA (BICKB), LRCKA (LRCKB)) can be stopped in the reset mode.
When exiting the reset mode, “1” should be written to RSTN bit after the external clocks (
MCLKA (MCLKB),
BICKA (BICKB), LRCKA (LRCKB)) are fed.
(8) There is a delay about 4~5/fs from RSTN bit “0” to the internal RSTN bit “0”.
Figure 13. Reset sequence example
相關(guān)PDF資料
PDF描述
AK4682EQ Multi-channel CODEC with 2Vrms Stereo Selector
AK4683_07 Asynchronous Multi-Channel Audio CODEC with DIR/T
AK4683EQ Asynchronous Multi-Channel Audio CODEC with DIR/T
AK4683 Asynchronous Multi-Channel Audio CODEC with DIR/T
AK4702EQ 2ch DAC with AV SCART switch
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AK4682AEQ 功能描述:IC CODEC MULTI-CHANNEL 48LQFP 制造商:akm semiconductor inc. 系列:* 零件狀態(tài):上次購(gòu)買時(shí)間 標(biāo)準(zhǔn)包裝:1,000
AK4682EQ 制造商:AKM 制造商全稱:AKM 功能描述:Multi-channel CODEC with 2Vrms Stereo Selector
AK4683 制造商:AKM 制造商全稱:AKM 功能描述:Asynchronous Multi-Channel Audio CODEC with DIR/T
AK4683_07 制造商:AKM 制造商全稱:AKM 功能描述:Asynchronous Multi-Channel Audio CODEC with DIR/T
AK4683_10 制造商:AKM 制造商全稱:AKM 功能描述:Asynchronous Multi-Channel Audio CODEC with DIR/T
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