AKD4121 Datasheet, PDF (3/35 Pages) Asahi Kasei Microsystems – AK4121 Evalation Board Rev.B

ASAHI KASEI
[AKD4121]
„ Operating Sequence
Please use the AKD4121 according to the following sequence.
1. Jumper Setting for Power Supply: JP10(3.3V)
The JP10 (3.3V) selects power supply of the AKD4121.(3.3V or 5V.)
JACK : Providing power supply voltage with 3.3V. Opticlal input is not avaible.
REG : Providing power supply voltage with 5V. (3.3V is supplied via regulator on board.)
2. Power Supply Line Setting
Each supply line should be distributed directly from the power supply unit with low impedance
connection.
5V or 3.3V : For power supply jack. 5V or 3.3V. (Power supply voltage is selectrd by JP10.)
GND
: Groung of the board. 0V.
3. DIP Switch and Jumper Pins Setting (refer next page)
4. Power-on(After power is on, SW1 should be reset by setting "L"→"H" once.)
* The reset is done by SW1 during opertion.
The AK4121 is powered down during SW1 is “L”.The power down state is canceld by briging the SW1
to “H”, at the same time, the AK4121 is reset.
<KM069301>
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2004/08