參數(shù)資料
型號： AK4702
廠商： Asahi Kasei Microsystems Co.,Ltd
英文描述： 2CH DAC WITH AV SCART SWITCH
中文描述： 2聲道DAC，具有影音SCART開關
文件頁數(shù)： 21/38頁
文件大?。?/td> 308K
代理商： AK4702
ASAHI KASEI
[AK4702]
MS0187-E-00
2002/11
- 21 -
The Figure 7 shows an example of the system timing at the power-down and power-up by PDN pin.
PDN pin
“Stand-by“
GD
D/A Out
(internal)
(1)
TV out
“1” (default)
STBY bit
“0”
“1”
don’t care (2)
Clock in
normal operation
don’t care (2)
don’t care
Data in
don’t care
“0”
GD
(1)
“0”
DAC
TV-Source
select
VCR in
VCR in
“1” (default)
MUTE bit
“0”
VCR in
(3)
VCR in
fixed to VCR in(Loop-through)
“1”
“0”
“Stand-by“
“Mute”
Audio data
“1”
(default)
offset calibration
(4)
Notes:
(1) The analog output corresponding to the digital input has a group delay, GD.
(2) The external clocks (MCLK, BICK and LRCK) can be stopped in standby mode.
(3) Please mute the analog outputs externally if click noise(3) adversely affects the system.
(4) In case of the CAL bit = “1”, the offset calibration is always executed when the source of TVOUT is switched to
DAC after the STBY bit is changed to “0”. To disable this function, set the CAL bit = “0”.
Figure 7. Power-down/up sequence example
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