AKD4708-A Datasheet, PDF (2/28 Pages) Asahi Kasei Microsystems – AV SCART switch

ASAHI KASEI
[AKD4708-A]
EVALUATION BOARD MANUAL
„ Operation sequence
1) Set up the power supply lines.
[VP]
(Orange) = 11.4 ∼ 12.6V (typ. 12V, for VP pin)
[VD] (Red)
= 4.75 ∼ 5.25V (typ. 5.0V, for VD pin)
[VVD] (Red)
= 4.75 ∼ 5.25V (typ. 5.0V, for VVD1 pin, VVD2 pin)
[VCC] (Red)
= 5.0V (for digital logic)
[AGND] (Black)
= 0V (for analog ground: VSS, VVSS)
[DGND] (Black)
= 0V (for digital ground)
Each supply line should be distributed from the power supply unit.
2) Set-up jumper pins. (See the followings.)
3) Power on.
The AK4708 should be reset once bringing SW1 “L” upon power-up.
„ Jumper pins set up
[JP1] (GND): Analog ground and Digital ground
OPEN: Separated
SHORT: Common. (The connector “DGND” can be open.) <Default>
[JP2] (VD): Regulator +5V or VD connector
OPEN: VD pin is supplied from VD connector.
SHORT: VD pin is supplied to regulator +5V. (The connector “VD” can be open.) <Default>
[JP3] (VVD): VD connector or VVD connector
OPEN: VVD1 and VVD2 pins are supplied from VVD connector.
SHORT: VVD1 and VVD2 pins are supplied from VD connector.
(The connector “VVD” can be open.) <Default>
[JP4] (VCC): VVD connector or VCC connector
OPEN: Logic voltage is supplied from VCC connector.
SHORT: Logic voltage is supplied form VVD connector. (The connector “VCC” can be open.) <Default>
The regulator can be supplied 5.0V to all circuits by shorting JP2, JP3 and JP4 and supplying 12V to VP connector.
[JP6] (VCRRC): VCRRC pin input select
I: J16 (VCRRC) <Default>
I/O: J36 (VCRCOUT)
[JP7] (VCRG): VCRG pin input select
I: J13 (VCRG) <Default>
I/O: J37 (VCRGOUT)
[JP8] (VCRB): VCRB pin input select
I: J9 (VCRB) <Default>
I/O: J38 (VCRBOUT)
[JP9] (VCRFB): VCRFB pin input select
I: J10 (VCRFB) <Default>
I/O: J39 (VCRFBOUT)
<KM085101>
-2-
2007/01