BU3058FV ROHM Co. Ltd., BU3058FV Datasheet - Page 3

• Manufacturer Part Number: BU3058FV
• Description: Clock Generator With Built-in Vcxo
• Manufacturer: ROHM Co. Ltd.

○Package Outline, Appearance of Marker
○Pin Function
●Cautions on use（BU3058FV）
PIN No.
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 0.1µF capacitors in the vicinity of the IC PINs between 2PIN (AVDD1), 3PIN (AVSS1), and 5PIN(AVDD2),
6PIN(AVSS2), and 12PIN (VSS), 13PIN (VDD) respectively.
To obtain accurate frequency, capacitance (pF) need to be placed between 3PIN (AVSS1) and 1PIN (XIN),
3PIN (AVSS1) and 16PIN(XOUT).
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 BU3058FV 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.
For ICs with more than one power supply, it is possible that rush current may flow instantaneously due to the
internal powering sequence and delays. Therefore, give special consideration to power coupling capacitance, power
wiring, width of GND wiring, and routing of wiring.
10
12
13
14
15
16
11
1
2
3
4
5
6
7
8
9
PIN Name
CLKOUT
CLK54M
CLK27M
VCTRL
AVDD1
AVSS1
AVDD2
AVSS2
XOUT
TEST
SEL1
SEL2
VDD
PDB
VSS
XIN
Power supply for VCXO
GND for VCXO
VCXO control input terminal
Power supply for PLL-Analog
GND for PLL-Analog
CLKOUT output control terminal2
GND for PLL-Digital
Power supply for PLL-Digital
Crystal Input terminal
CLKOUT output control terminal1
27.000000MHz Output
54.000000MHz Output
66.000000MHz / 74.250000MHz / 77.000000MHz / 82.000000MHz Output
Power-down control terminal,with pull-up
Crystal Output terminal
Test terminal with pull-down
SSOP-B16
3058F
REV. A
Lot No.
Function
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