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ASM3P2108A-08-SR

45MHz, OTHER CLOCK GENERATOR, PDSO8, SOIC-8

器件类别:嵌入式处理器和控制器    微控制器和处理器   

厂商名称:ON Semiconductor(安森美)

厂商官网:http://www.onsemi.cn

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器件参数
参数名称
属性值
是否无铅
含铅
是否Rohs认证
不符合
厂商名称
ON Semiconductor(安森美)
零件包装代码
SOIC
包装说明
SOP,
针数
8
Reach Compliance Code
compliant
ECCN代码
EAR99
JESD-30 代码
R-PDSO-G8
JESD-609代码
e0
长度
4.9 mm
端子数量
8
最高工作温度
70 °C
最低工作温度
最大输出时钟频率
45 MHz
封装主体材料
PLASTIC/EPOXY
封装代码
SOP
封装形状
RECTANGULAR
封装形式
SMALL OUTLINE
峰值回流温度(摄氏度)
NOT SPECIFIED
主时钟/晶体标称频率
45 MHz
认证状态
Not Qualified
座面最大高度
1.75 mm
最大供电电压
5.25 V
最小供电电压
4.75 V
标称供电电压
5 V
表面贴装
YES
技术
CMOS
温度等级
COMMERCIAL
端子面层
TIN LEAD
端子形式
GULL WING
端子节距
1.27 mm
端子位置
DUAL
处于峰值回流温度下的最长时间
NOT SPECIFIED
宽度
3.91 mm
uPs/uCs/外围集成电路类型
CLOCK GENERATOR, OTHER
文档预览
ASM3P2108A
Peak EMI Reducing Solution
Features
FCC approved method of EMI attenuation.
Generates a 1X low EMI spread spectrum clock of
the input frequency.
Input frequency range: 25MHz to 45MHz.
Internal loop filter minimizes external components
and board space.
Frequency deviation: - 1.3%( Typ) @ 32MHz.
Low cycle-to-cycle jitter.
5.0V ± 5% operating voltage range.
TTL or CMOS compatible outputs.
by reducing the number of circuit board layers ferrite
beads, shielding and other passive components that are
traditionally required to pass EMI regulations.
The ASM3P2108A uses the most efficient and optimized
modulation profile approved by the FCC and is
implemented in a proprietary all digital method.
The ASM3P2108A 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.’
Available in 8-pin SOIC Package.
Product Description
The ASM3P2108A is a versatile spread spectrum
frequency modulator designed specifically for input clock
frequencies from 25MHz to 45MHz. The ASM3P2108A
can generate an EMI reduced clock from crystal, ceramic
resonator, or system clock.
The ASM3P2108A reduces electromagnetic interference
(EMI) at the clock source, allowing system wide reduction
of EMI of down stream clock and data dependent signals.
The ASM3P2108A allows significant system cost savings
Applications
The ASM3P2108A is targeted towards EMI management
for high speed digital applications such as PC peripheral
devices, consumer electronics and embedded controller
systems.
Block Diagram
V
DD
Modulation
XIN
Crystal
Oscillator
XOUT
Frequency
Divider
Feedback
Divider
Phase
Detector
Loop
Filter
PLL
VCO
Output
Divider
CLOCKOUT
GND
©2010 SCILLC. All rights reserved.
OCTOBER 2010 – Rev. 2
Publication Order Number:
ASM3P2108/D
ASM3P2108A
Pin Configuration
XIN / CLKIN
1
XOUT
2
GND
3
NC
4
8
NC
ASM3P2108A
7
NC
6
VDD
5
CLOCKOUT
Pin Description
Pin#
1
2
3
4
5
6
7
8
Pin Name
XIN / CLKIN
XOUT
GND
NC
CLOCKOUT
VDD
NC
NC
Type
I
O
P
-
O
P
-
-
Description
Crystal connection or external reference frequency input. This pin has dual functions. It
can be connected to either an external crystal or an external reference clock.
Crystal connection. If using an external reference, this pin must be left unconnected.
Ground to entire chip.
No connect.
Spread spectrum low EMI output.
Power supply for the entire chip (5V).
No connect.
No connect.
Absolute Maximum Ratings
Symbol
V
DD
, V
IN
T
STG
T
A
T
s
T
J
T
DV
Storage temperature
Operating temperature
Parameter
Rating
-0.5 to +7.0
-65 to +125
0 to 70
260
150
2
Unit
V
°
C
°
C
°
C
°
C
KV
Voltage on any pin with respect to Ground
Max. Soldering Temperature (10 sec)
Junction Temperature
Static Discharge Voltage
(As per JEDEC STD22- A114-B)
Note: These are stress ratings only and are not implied for functional use. Exposure to absolute maximum ratings for prolonged periods of time may affect
device reliability.
Operating Conditions
Symbol
VDD
T
A
C
L
C
IN
Operating temperature
Load Capacitance
Input Capacitance
Parameter
Supply Voltage with respect to VSS
Min
4.75
-40
Max
5.25
+85
15
7
Unit
V
°
C
pF
pF
Rev. 1 | Page 2 of 5 | www.onsemi.com
ASM3P2108A
DC Electrical Characteristics
Symbol
Parameter
V
IL
V
IH
I
IL
I
IH
I
XOL
I
XOH
V
OL
V
OH
I
CC
I
DD
V
DD
t
ON
Z
OUT
Input low voltage
Input high voltage
Input low current
Input high current
X
OUT
output low current (@ 0.4, V
DD
= 5V)
X
OUT
output high current (@2.5V, V
DD
= 5V)
Output low voltage (V
DD
= 5V, I
OL
= 20mA)
Output high voltage (V
DD
= 5V, I
OH
= 20mA)
Dynamic supply current normal mode
(5V, 32MHz and 15pF loading)
Static supply current standby mode
Operating voltage
Power up time (first locked clock cycle after power up)
Clock out impedance
2.5
40
40
4.75
5.0
0.18
50
5.25
Min
GND – 0.3
2.0
Typ
Max
0.8
V
DD
+ 0.3
Unit
V
V
µA
µA
mA
mA
44
66
3
3
0.4
V
V
mA
µA
V
mS
AC Electrical Characteristics
Symbol
f
IN
MODOUT
f
d
t
LH
*
t
HL
*
t
JC
t
D
Input frequency
Output frequency
Parameter
Min
25
25
Typ
Max
45
45
Unit
MHz
MHz
%
pS
pS
Input Frequency = 25MHz
Input Frequency = 45MHz
Output rise time (measured at 0.8V to 2.0V)
Frequency Deviation
Output fall time (measured at 2.0V to 0.8V)
Jitter (cycle to cycle)
Output duty cycle
45
-1.98
-0.60
440
300
±360
50
55
pS
%
* V
DD
= +5V, Input Frequency = 32MHz, t
LH
and t
HL
are measured into a capacitive load of 15pF
Rev. 1 | Page 3 of 5 | www.onsemi.com
ASM3P2108A
Package Information
8-Pin SOIC Package
E
H
D
A2
A
θ
e
A
1
B
C
D
L
Dimensions
Symbol
Min
A1
A
A2
B
C
D
E
e
H
L
θ
0.004
0.053
0.049
0.012
0.007
Inches
Max
0.010
0.069
0.059
0.020
0.010
Millimeters
Min
0.10
1.35
1.25
0.31
0.18
4.90 BSC
3.91 BSC
1.27 BSC
6.00 BSC
0.41
1.27
Max
0.25
1.75
1.50
0.51
0.25
0.193 BSC
0.154 BSC
0.050 BSC
0.236 BSC
0.016
0.050
Rev. 1 | Page 4 of 5 | www.onsemi.com
ASM3P2108A
Ordering Codes
Part Number
ASM3P2108AF-08SR
Marking
AEG
Package
8-PIN SOIC, TAPE AND REEL, Pb Free
Temperature
0° to +70°
C
C
A “microdot” placed at the end of last row of marking or just below the last row toward the center of package indicates Pb-free.
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. U.S Patent Pending; Timing-Safe
and Active Bead are trademarks of PulseCore Semiconductor, a wholly owned subsidiary of ON Semiconductor. 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:
303-675-2175 or 800-344-3860 Toll Free
USA/Canada
Fax:
303-675-2176 or 800-344-3867 Toll Free
USA/Canada
Email:
orderlit@onsemi.com
N. American Technical Support:
800-282-9855
Toll Free USA/Canada
Europe, Middle East and Africa Technical
Support:
Phone: 421 33 790 2910
Japan Customer Focus Center
Phone: 81-3-5773-3850
ON Semiconductor Website:
www.onsemi.com
Order Literature:
http://www.onsemi.com/orderlit
For additional information, please contact your
local Sales Representative
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参数对比
与ASM3P2108A-08-SR相近的元器件有:ASM3P2108AF-08-TR、ASM3P2108A-SR、ASM3P2108A-ST、ASM3P2108A-TT、ASM3P2108A-08-TT。描述及对比如下:
型号 ASM3P2108A-08-SR ASM3P2108AF-08-TR ASM3P2108A-SR ASM3P2108A-ST ASM3P2108A-TT ASM3P2108A-08-TT
描述 45MHz, OTHER CLOCK GENERATOR, PDSO8, SOIC-8 45MHz, OTHER CLOCK GENERATOR, PDSO8, ROHS COMPLIANT, TSSOP-8 80MHz, OTHER CLOCK GENERATOR, PDSO8, SOIC-8 80MHz, OTHER CLOCK GENERATOR, PDSO8, SOIC-8 80MHz, OTHER CLOCK GENERATOR, PDSO8, TSSOP-8 45MHz, OTHER CLOCK GENERATOR, PDSO8, TSSOP-8
零件包装代码 SOIC SOIC SOIC SOIC SOIC SOIC
包装说明 SOP, TSSOP, SOP, SOP, TSSOP, TSSOP,
针数 8 8 8 8 8 8
Reach Compliance Code compliant unknown unknown unknown unknown compliant
ECCN代码 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99
JESD-30 代码 R-PDSO-G8 R-PDSO-G8 R-PDSO-G8 R-PDSO-G8 R-PDSO-G8 R-PDSO-G8
长度 4.9 mm 4.4 mm 4.92 mm 4.92 mm 4.4 mm 4.4 mm
端子数量 8 8 8 8 8 8
最高工作温度 70 °C 70 °C 70 °C 70 °C 70 °C 70 °C
最大输出时钟频率 45 MHz 45 MHz 80 MHz 80 MHz 80 MHz 45 MHz
封装主体材料 PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
封装代码 SOP TSSOP SOP SOP TSSOP TSSOP
封装形状 RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR
封装形式 SMALL OUTLINE SMALL OUTLINE, THIN PROFILE, SHRINK PITCH SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
主时钟/晶体标称频率 45 MHz 45 MHz 20 MHz 20 MHz 20 MHz 45 MHz
认证状态 Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified
座面最大高度 1.75 mm 1.1 mm 1.8 mm 1.8 mm 1.1 mm 1.1 mm
标称供电电压 5 V 5 V 3.3 V 3.3 V 3.3 V 5 V
表面贴装 YES YES YES YES YES YES
技术 CMOS CMOS CMOS CMOS CMOS CMOS
温度等级 COMMERCIAL COMMERCIAL COMMERCIAL COMMERCIAL COMMERCIAL COMMERCIAL
端子形式 GULL WING GULL WING GULL WING GULL WING GULL WING GULL WING
端子节距 1.27 mm 0.65 mm 1.27 mm 1.27 mm 0.65 mm 0.65 mm
端子位置 DUAL DUAL DUAL DUAL DUAL DUAL
宽度 3.91 mm 3 mm 3.95 mm 3.95 mm 3 mm 3 mm
uPs/uCs/外围集成电路类型 CLOCK GENERATOR, OTHER CLOCK GENERATOR, OTHER CLOCK GENERATOR, OTHER CLOCK GENERATOR, OTHER CLOCK GENERATOR, OTHER CLOCK GENERATOR, OTHER
厂商名称 ON Semiconductor(安森美) ON Semiconductor(安森美) ON Semiconductor(安森美) - ON Semiconductor(安森美) ON Semiconductor(安森美)
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