BU2285FV_08 Datasheet, PDF (14/17 Pages) Rohm – DVD-Audio Reference Clock Generator for Audio/Video Appliance

●Example of application circuit
◎BU2363FV
0.1uF
54.0000MHz
27.0000MHz
0.1uF
1:VDD2
2:VSS2
3:CLK254M
4:CLK27M
5:AVDD
6:AVSS
7:XTALIN
8:XTALOUT
16:OE
15:CLK33M
14:FSEL
13:CLK16M
12:DVDD
11:DVSS
10:768FS1
9:384FS2
OPEN:Enable
L :Disable
33.8688MHz
OPEN:48.0kHz type
L
:44.1kHz type
16.9344MHz
0.1uF
36.8640MHz
or 33.8688MHz
18.4320MHz
or 16.9344MHz
Pin function
PIN No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Fig.86
PIN name
VDD2
VSS2
CLK54M
CLK27M
AVDD
AVSS
XTALIN
XTALOUT
384FS2
768FS1
DVSS
DVDD
CLK16M
FSEL
CLK33M
OE
PIN function
27MHz, 54MHz power supply
27MHz, 54MHzGND
54.0000MHz output
27.0000MHz output
Analog power supply
Analog GND
Crystal input terminal
Crystal output terminal
FSEL=OPEN:18.4320MHz, FSEL=L:16.9344MHz
FSEL=OPEN:36.8640MHz, FSEL=L:33.8688MHz
Digital GND
Digital power supply
16.9344MHz output
9, 10PIN output selection(with pull-up)
OPEN:18.4320MHz(9PIN), 36.8640MHz(10PIN)
L:16.9344MHz(9PIN), 33.8688MHz(10PIN)
33.8688MHz output
Output enable (with pull-up), OPEN:enable, L:disable
Note) Basically, mount ICs to the printed circuit board for use. (If the ICs are not mounted to the printed circuit board, the characteristics of ICs
may not be fully demonstrated.)
Mount 0.1F capacitors in the vicinity of the IC PINs between 1PIN (VDD2) and 2PIN (VSS2), 5PIN (AVDD) and 6PIN (AVSS), 11PIN (DVSS) and
12PIN (DVDD), respectively.
Depending on the conditions of the printed circuit board, mount an additional electrolytic capacitor between the power supply and GND terminal.
For EMI protection, it is effective to put ferrite beads in the origin of power supply to be fed to BU2363FV from the printed circuit board or to insert
a capacitor (of 1 or less), which bypasses high frequency desired, between the power supply and the GND terminal.
Even though we believe that the example of recommended circuit is worth of a recommendation, please be sure to
thoroughly recheck the characteristics before use.
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