BU2285FV

Multimedia ICs

6/6

Application example

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CLK33M

CTRLB

CLK54M

CLKDAC

DVDD

DVSS

DVSS

CLK27M

VDD2

VSS2

CLKB

OE

VDD 1

VSS 1

CLK16M

AVSS

AVDD

AVDD

AVSS

XTALIN

XTALOUT

NC

CTRLA

CLKA

0.1

µF

L or NC (pull-up)

33.8688MHz

54MHz

27MHz

16.9344MHz or

18.432MHz

13.5MHz or 27MHz

0.1

µF

L or NC (pull-up)

0.1

µF

16.9344MHz

33.8688MHz or

36.864MHz

L or NC(pull-up)

0.1

µF

0.1

µF

Operating notes

The BU2285FV is basically placed on the board.

Decoupling capacitance (0.

Also Decoupling capacitance (0.1

To obtain accurate frequency , capacitance( pF) need to be placed between Pin8 (XTALIN) and Pin7 (AGND), Pin9

(XTALOUT) and Pin7 (AGND).

Tantalum capacitance (10 to 100

µF), ferrite beads may need to be placed to prevent power supply drop in certain boards

case.

To reduce high frequency noise, selected bypass capacitors (

≤1Ω at problem high frequency) maybe used for power pin

as close to BU2285FV as possible.