Clocks Timers

A
Clocks & Timers
ICs
Clocks & Timers
CONTENTS
High-performance Clock Generators ICs
・・・・・
P. A22
Clock Generators for Digital Cameras ・・・・・・・・・・・・・・・・・・・・P. A22
DVD-Audio Reference Clock Generators ・・・・・・・・・・・・・・・P. A22
DVD-Video Reference Clock Generators for A/V Equipments ・・・・・・P. A22
Clock Generator with Built-in VCXO for A/V Equipments ・・・・・・・P. A22
Real Time Clocks ICs
・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・
P. A22
Real Time Clocks with High-precision Oscillation Adjustment ・・・・・P. A22
www.rohm.com
A21
▶ High-performance Clock Generators ICs ▶▶ Clock Generators for Digital Cameras
▶▶ DVD-Audio Reference Clock Generators
▶▶ DVD-Video Reference Clock Generators for A/V Equipments
▶▶ Clock Generator with Built-in VCXO for A/V Equipments
▶ Real Time Clocks ▶▶ Real Time Clocks with High-precision Oscillation Adjustment
ICs
Clocks & Timers
High-performance Clock Generators ICs
Clock Generators for Digital Cameras
Video clock
CCD clock
(The output which can be selected) (The output which can be selected)
(MHz)
(MHz)
Supply voltage
(V)
Reference frequency
(MHz)
BU2394KN
3.0 to 3.6
14.318182
(28.636363)
14.318182
17.734450
BU2396KN
3.0 to 3.6
12.000000
27.000000
Part No.
A
Clocks & Timers
USB clock
(MHz)
Jitter 1σ Typ.
(ps)
135.000000
108.000000
98.181818
110.000000
48.008022
30
VQFN20
24.000000
30.000000
36.000000
12.000000
50
VQFN20
Package
DVD-Audio Reference Clock Generators
Output frequency (MHz)
Part No.
BU2363FV
Supply
voltage
(V)
Reference
frequency
(MHz)
3.0 to 3.6
36.8640
DVD, Audio, CD clock
(The output which can be switched)
DVD-video clock
System clock
Video1
Video2
Video3
768fs
512fs
384fs
256fs
768fs
384fs
54.0000
27.0000
−
36.8640
33.8688
−
18.4320
16.9344
−
33.8688
16.9344
Jitter
1σ Typ.
(ps)
C/N
Typ.
(dB)
50
− 75
(Video)
Package
SSOP-B16
DVD-Video Reference Clock Generators for A/V Equipments
Output frequency (MHz)
Part No.
Supply
voltage
(V)
Reference
frequency
(MHz)
DVD, Audio, CD clock
(The output which can be switched)
DVD-video clock
Video1
Video2
System clock
Jitter 1σ
Typ.
(ps)
Long-term
Jitter P-P
Typ.
(ns)
Package
Video3
768fs
512fs
384fs
Other
768fs
384fs
other
24.5760
22.5792
18.4320
16.9344
−
33.8688
−
−
70
8
(Audio)
SSOP-B24
BU2280FV
3.0 to 3.6
27.0000
27.0000
−
−
36.8640
33.8688
BU2360FV
2.7 to 3.6
27.0000
27.0000
−
−
−
24.5760
22.5792
−
−
33.8688
−
−
70
2.5
(Audio)
SSOP-B16
BU2362FV
2.7 to 3.6
27.0000
27.0000
−
−
−
24.5760
22.5792
−
36.8640
16.9344
33.8688
16.9344
36.8640
70
12
(Audio)
SSOP-B16
Clock Generator with Built-in VCXO for A/V Equipments
PLL output frequency (MHz)
Part No.
BU3087FV
Supply
VCXO
voltage (Reference clock)
(V)
3.135 to
3.465
Tuning range
27MHz ±
105ppm
Typ.
Clock
Buffer
ー
DVD, Audio, CD clock
(The output which can be switched)
DVD-video clock
Jitter 1σ
C/N
Typ.(ps) Typ.(dB)
System clock
Video1
Video2
Video3
768fs
768fs
512fs
384fs
other
27.000000
ー
74.250000
Modulation
0.25%
0.50%
0.75%
1.00%
−
−
−
−
−
( )
30
HD −
Video
− 70
Package
SSOP-B16
Clock Generators for Digital Cameras : Three types of clocks generated-CCD, USB, and a Video
DVD-Audio Reference Clock Generators : DVD/CD-audio, DVD-video clock generation using the DVD-video reference clock
DVD-Video Reference Clock Generators for A/V Equipments : DVD/CD-audio, DVD-video clock generation using the DVD-video reference clock
Clock Generator with Built-in VCXO for A/V Equipments : VCXO is Built-in with high-precision external synchronization
Real Time Clocks ICs
Real Time Clocks with High-precision Oscillation Adjustment
Part No.
I/F
Supply
Voltage
(V)
Time keeping
Voltage
(V)
Time keeping current
(Typ.)(μA)
Time keeping current
(Max.)(μA)
Operating frequency 1
(Max.)(kHz)
Operating frequency 2
(Max.)(kHz)
BU9873F
SOP8
BU9873FJ
BU9873FVM
Package
SOP-J8
I2C
1.8 to 5.5
1.45 to 5.5
0.4
(VDD=3V,Ta=25℃)
1.0
(VDD=3V,Ta=40℃ to 85℃)
100
(VDD=1.8V to 2.5V)
400
(VDD=2.5V to 5.5V)
MSOP8
BU9873FVT
TSSOP-B8
BU9873NUX
VSON008X2030
A22
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