BU2280FV_08 Datasheet, PDF (21/25 Pages) Rohm – DVD-video Reference Clock Generators for Audio/Video Equipments

●Example of application circuit
◎BU2360FV
0.1uF
27.0000MHz
27.0000MHz
0.1uF
1:VDD2
2:VSS2
3:CLK27M1
4: CLK27M2
5:AVDD
6:AVSS
7:XTALIN
8:XTALOUT
16:OE
15:CLK33M1
14:FSEL
13:CLK32M2
12:DVDD
11:DVSS
10:CLK512FS1
9:CLK512FS2
OPEN:Enable
L:Disable
33.8688MHz
OPEN:48.0kHz type
L:44.1kHz type
33.8688MHz
0.1uF
24.5760MHz
or 22.5792MHz
24.5760MHz
or 22.5792MHz
Description of terminal
Fig.127
PIN No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
PIN name
VDD2
VSS2
CLK27M1
CLK27M2
AVDD
AVSS
XTALIN
XTALOUT
CLK512FS2
CLK512FS1
DVSS
DVDD
CLK33M2
FSEL
CLK33M1
OE
PIN function
Power supply for 27MHz
GND for 27MHz
27.0000MHz Clock output terminal 1 (CL=40pF)
27.0000MHz Clock output terminal 2 (CL=25pF)
Power supply for Analog block
GND for Analog block
Crystal input terminal
Crystal output terminal
FSEL=OPEN:24.5760MHz, FSEL=L:22.5792MHz
FSEL=OPEN:24.5760MHz, FSEL=L:22.5792MHz
GND for Digital block
Power supply for Digital block
33.8688MHz Clock output terminal 2
9, 10PIN output selection (with pull-up)
OPEN:24.5760MHz(9, 10PIN), L:22.5792MHz(9, 10PIN)
33.8688MHz Clock output terminal 1
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 BU2360FV 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.
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