BU94601KV_12 Datasheet, PDF (14/70 Pages) Rohm – AAC/WMA/MP3 +SD Memory Card + iPod

BU94601KV BU94603KV BU94604BKV
Datasheet
●Application Information
1. Clock and reset
Clock
Signal name I/O
XIN_PLL I
XOUT_PLL O
Function
X’tal (16.9344 MHz) connection
input terminal
X’tal (16.9344 MHz) connection
terminal
Reset
Signal name I/O
Function
RESETX I System reset input terminal
Remarks
Remarks
To disable a reset signal, continue L input for more than 5 us after all of the supply voltage reach the specified value and
clock input from the oscillation I/O terminal becomes stable. (See Figure 6.)
Power
supply
XIN_PLL
Oscillation stabilization
standby time
fclk
RESETX
tRSTX
Figure 6 Reset Timing
Item
Symbol
Clock frequency f_CLK
Reset L interval t_RSTX
min
16.9302
5
Specification
typ
16.9344
-
max
16.9386
-
Unit
MHz
us
Remarks
2. SEL_SLAVE
MODE1/MODE2, 3 selection input signal
Signal name I/O
Function
SEL_SLAVE I Selects MODE1 or MODE2, 3.
Remarks
H: MODE1, L: MODE2, 3
SEL_SLAVE selects MODE1 (STAND ALONE MODE) or MODE 2/3 (SLAVE MODE).
By selecting SEL_SLAVE, SLAVE mode terminal setting is enabled.
SEL_SLAVE is set only at power ON. Note that change of selection after power ON is ignored.
3. SEL_MP3
MPEG Audio Layer 1, 2, 3 play selection signal
Signal name I/O
Function
SEL_MP3 I MPEG Audio Layer selection
Remarks
H: Can play MP3 only.L: Can play MP1, MP2 and MP3.
SEL_MP3 allows you to select the layer of the MPEG audio to be played. When enabling all the files having mp1,
mp2 or mp3 as the file extension to be played, enter L. When enabling mp3 only, enter H.
SEL_MP3 is set only at power ON. Note that change of election after power ON is ignored.
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TSZ22111・15・001
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TSZ02201-0V2V0E600010-1-2
2012.07.12 Rev.001