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データシート ASM3P2107A PDF ( 特性, スペック, ピン接続図 )

部品番号 ASM3P2107A
部品説明 Peak EMI Reducing Solution
メーカ ON Semiconductor
ロゴ ON Semiconductor ロゴ 
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ASM3P2107A Datasheet, ASM3P2107A PDF,ピン配置, 機能
ASM3P2107A
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Peak EMI Reducing
Solution
Description
The ASM3P2107A is a versatile spread spectrum frequency
modulator designed specifically for input clock frequencies from
12 MHz to 22 MHz. The ASM3P2107A can generate an EMI reduced
clock from crystal, ceramic resonator, or system clock.
The ASM3P2107A reduces electromagnetic interference (EMI) at
the clock source, allowing system wide reduction of EMI of down
stream clock and data dependent signals. The ASM3P2107A allows
significant system cost savings by reducing the number of circuit
board layers ferrite beads, shielding and other passive components that
are traditionally required to pass EMI regulations.
The ASM3P2107A uses the most efficient and optimized
modulation profile approved by the FCC and is implemented in a
proprietary all digital method.
The ASM3P2107A modulates the output of a single PLL in order to
“spread” the bandwidth of a synthesized clock, and more importantly,
decreases the peak amplitudes of its harmonics. This results in
significantly lower system EMI compared to the typical narrow band
signal produced by oscillators and most frequency generators.
Lowering EMI by increasing a signal’s bandwidth is called ‘spread
spectrum clock generation.’
Applications
The ASM3P2107A is targeted towards EMI management for high
speed digital applications such as PC peripheral devices, consumer
electronics and embedded controller systems.
Features
FCC Approved Method of EMI Attenuation
Generates a 1X Low EMI Spread Spectrum Clock of the Input
Frequency
Input Frequency Range: 12 MHz to 22 MHz
Internal Loop Filter Minimizes External Components and Board
Space
Frequency Deviation: 0.8% (Typ) @ 20 MHz
Low CycletoCycle Jitter
5.0 V ± 5% Operating Voltage Range
TTL or CMOS Compatible Outputs
Available in 8pin TSSOP and SOIC Package
These are PbFree Devices
This document contains information on a product under development. ON Semiconductor
reserves the right to change or discontinue this product without notice.
http://onsemi.com
SOIC8
S SUFFIX
CASE 751BD
TSSOP8
T SUFFIX
CASE 948AL
PIN CONFIGURATION
1
XIN/CLKIN
NC
XOUT
NC
GND
VDD
NC CLOCKOUT
(Top View)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 6 of this data sheet.
© Semiconductor Components Industries, LLC, 2011
August, 2011 Rev. P2
1
Publication Order Number:
ASM3P2107A/D

1 Page



ASM3P2107A pdf, ピン配列
ASM3P2107A
Table 3. DC ELECTRICAL CHARACTERISTICS
Symbol
Parameter
VIL
VIH
IIL
IIH
IXOL
IXOH
VOL
VOH
ICC
Input low voltage
Input high voltage
Input low current
Input high current
XOUT output low current (@ 0.4, VDD = 5 V)
XOUT output high current (@ 2.5 V, VDD = 5 V)
Output low voltage (VDD = 5 V, IOL = 20 mA)
Output high voltage (VDD = 5 V, IOH = 20 mA)
Dynamic supply current normal mode
(5 V, 18 MHz and 15 pF loading)
IDD
VDD
tON
ZOUT
Static supply current standby mode
Operating voltage
Power up time (first locked clock cycle after power up)
Clock out impedance
Min
GND 0.3
2.0
2.5
4.75
Typ
44
66
3
3
40
40
5.0
0.18
50
Table 4. AC ELECTRICAL CHARACTERISTICS
Symbol
Parameter
Min Typ
fIN
MODOUT
Input frequency
Output frequency
12
12
fd
Frequency Deviation
Input Frequency = 12 MHz
Input Frequency = 22 MHz
− −2.13
− −0.62
tLH (Note 1)
Output rise time (measured at 0.8 V to 2.0 V)
tHL (Note 1)
Output fall time (measured at 2.0 V to 0.8 V)
tJC Jitter (cycle to cycle)
tD Output duty cycle
45
1. VDD = +5 V, Input Frequency = 18 MHz, tLH and tHL are measured into a capacitive load of 15 pF
440
300
50
Max
0.8
VDD + 0.3
0.4
5.25
Unit
V
V
mA
mA
mA
mA
V
V
mA
mA
V
mS
W
Max Unit
22 MHz
22 MHz
%
pS
pS
360 pS
55 %
http://onsemi.com
3


3Pages


ASM3P2107A 電子部品, 半導体
Table 5. ORDERING INFORMATION
Part Number
Marking
ASM3P2107AF-08-SR
3P2107AF
ASM3P2107AF-08-ST
3P2107AF
ASM3P2107AF-08-TR
3P2107AF
ASM3P2107AF-08-TT
3P2107AF
ASM3P2107AG-08-SR
3P2107AG
ASM3P2107AG-08-ST
3P2107AG
ASM3P2107AG-08-TR
3P2107AG
ASM3P2107AG-08-TT
3P2107AG
ASM3P2107A
Package Type
8-PIN SOIC, TAPE AND REEL, Pb Free
8-PIN SOIC, TUBE, Pb Free
8-PIN TSSOP, TAPE AND REEL, Pb Free
8-PIN TSSOP, TUBE, Pb Free
8-PIN SOIC, TAPE AND REEL, Green
8-PIN SOIC, TUBE, Green
8-PIN TSSOP, TAPE AND REEL, Green
8-PIN TSSOP, TUBE, Green
Temperature
Commercial
Commercial
Commercial
Commercial
Commercial
Commercial
Commercial
Commercial
ON Semiconductor and
are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice
to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability
arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.
“Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All
operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights
nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications
intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should
Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates,
and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death
associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal
Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.
PUBLICATION ORDERING INFORMATION
LITERATURE FULFILLMENT:
Literature Distribution Center for ON Semiconductor
P.O. Box 5163, Denver, Colorado 80217 USA
Phone: 3036752175 or 8003443860 Toll Free USA/Canada
Fax: 3036752176 or 8003443867 Toll Free USA/Canada
Email: orderlit@onsemi.com
N. American Technical Support: 8002829855 Toll Free
USA/Canada
Europe, Middle East and Africa Technical Support:
Phone: 421 33 790 2910
Japan Customer Focus Center
Phone: 81357733850
http://onsemi.com
6
ON Semiconductor Website: www.onsemi.com
Order Literature: http://www.onsemi.com/orderlit
For additional information, please contact your local
Sales Representative
ASM3P2107A/D

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