[AK4706]
■ Typical Operation Sequence
The Figure 3 shows an example of the system timing.
PDN pin
“Stand-by“
“Mute”
“0”
“Stand-by“
AUTO bit
“1” (default)
“1” (default)
MUTE bit
STBY bit
“1”
“0”
“1”
“0”
“1” (default)
“1”
“0”
don’t care (2)
don’t care
don’t care (2)
don’t care
normal operation
Audio data
Clock in
Data in
“0”
“0”
GD
GD
(1)
(1)
D/A Out
(internal)
TV-Source
select
VCR in
fixed to VCR in(Loop-through)
VCR in
DAC
(default)
VCR in
VCR in
TV out
(3)
HD Video
Output
Hi-z
Hi-z
normal operation(4)
Figure 3. Typical operating sequence (except auto setup mode)
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) Mute the analog outputs externally if click noise(3) adversely affects the system.
(4) The HDSW1/0, HDCP1/0 bits set HD video outputs.
MS0507-E-01
2010/09
- 23 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
