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www.rohm.com
2009.04- Rev.A
2009 ROHM Co., Ltd. All rights reserved.
High-performance Clock Generator Series
Clock Generator
with Built-in VCXO for A/V Equipments
BU2365FV
●Description
The ROHM Clock Generator is an IC allowing for the generation of multiple clocks by a single chip through the connection of
a single crystal oscillator. The BU2365FV incorporates the ROHM’s unique PLL technology to provide the generation of
multiple high C/N clocks necessary for the DVD recorder system. This Clock Generator has the built-in high-precision VCXO
function and allows for high-precision synchronization with DVD Video clocks. It also has a built-in buffer having high driving
force and allows the supply of multiple 27MHz Video clocks for the system, thus providing the reduced number of the system
components.
●Features
1) The ROHM’s unique PLL technology allows for the generation of high C/N clocks.
2) Built-in high precision VCXO, which is essential for the DVD recorder system
3) Built-in buffer having high driving force (Load capacity/output CL=50pF, 27MHz drive, 1×input / 2×outputs)
4) Built-in half pulse clock protection [HPC]
5) Built-in power down function, Icc=0 uA(typ.)
6) SSOP-B24 package
7) Single power supply of 3.3 V
●Application
DVD recorder
●Absolute Maximum Ratings（Ta=25℃）
Parameter
Symbol
Limits
Unit
Supply voltage
VDD
-0.3~7.0
V
Input voltage
VIN
-0.3~VDD+0.3
V
Storage temperature range
Tstg
-30~125
℃
Power dissipation
PD
820
mW
*1 Operation is not guaranteed.
*2 In the case of exceeding Ta = 25℃, 8.2mW should be reduced per 1℃.
*3 The radiation-resistance design is not carried out.
*4 Power dissipation is measured when the IC is mounted to the printed circuit board.
●Recommended Operating Range
Parameter
Symbol
Limit
Unit
Supply voltage
VDD
3.0~3.6
V
Input H voltage
VINH
0.8VDD~VDD
V
Input L voltage
VINL
0.0~0.2VDD
V
Operating temperature
Topr
-10~70
℃
22Pin / 19Pin
CL_CLK768FS/384FS
32(MAX)
pF
13Pin , 14Pin
CL_BUFOUT
50(MAX)
pF
18Pin / 24Pin
CL_CLK512FS/54M
15(MAX)
pF
No.09005EAT05
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