參數(shù)資料
型號(hào): AK4545VQ
廠商: Asahi Kasei Microsystems Co.,Ltd
元件分類: Codec
英文描述: AC97 AUDIO CODEC WITH SRC AND DIT
中文描述: AC97聲音解碼器與SRC和DIT
文件頁數(shù): 9/33頁
文件大?。?/td> 363K
代理商: AK4545VQ
[ASAHI KASEI] [AK4545]
MS0058-E-00
2000/11
- 9 -
n
Warm Reset
The AK4545 initiates warm reset process by receiving a single pulse on the sync. The AK4545 clears PR4 bit and
PR5 bit in the Powerdown Control Register. However, warm reset does not influence PR0
PR3 or PR6,7 bits in
Powerdown Control Register. Note that SYNC signal should synchronize with BIT_CLK after AK4545 starts to
output BIT_CLK clock. And if an external clock is used, external clocks should be supplied before issuing a sync
pulse for warm reset.
ADC and DAC require 1028TS for the initialization.
T
sync2clk
T
sync_high
V
IH
BIT_CLK
SYNC
n
BIT_CLK Timing
T
clk_low
50%
T
clk_high
BIT_CLK
n
SYNC Timing
T
sync_low
V
IH
V
IL
T
sync_period
T
sync_high
SYNC
n
Setup and Hold Timing
SDATA_IN
SDATA_OUT
SYNC
V
IH
V
IL
T
hold
T
setup
BIT_CLK
V
IH
V
IL
T
delay
V
IH
V
IL
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