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ASM3P2760A-08SR

Clock Generator, 13MHz, CMOS, 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：ALSC [Alliance Semiconductor Corporation]

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参数 预览 参数对比
器件参数
参数名称
属性值
是否Rohs认证
不符合
厂商名称
ALSC [Alliance Semiconductor Corporation]
零件包装代码
SOIC
包装说明
SOP, SOP8,.25
针数
8
Reach Compliance Code
unknown
ECCN代码
EAR99
其他特性
ALSO OPERATES AT 2.5V SUPPLY
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
13 MHz
封装主体材料
PLASTIC/EPOXY
封装代码
SOP
封装等效代码
SOP8,.25
封装形状
RECTANGULAR
封装形式
SMALL OUTLINE
峰值回流温度（摄氏度）
NOT SPECIFIED
电源
3.3 V
主时钟/晶体标称频率
13 MHz
认证状态
Not Qualified
座面最大高度
1.75 mm
最大压摆率
6 mA
最大供电电压
3.6 V
最小供电电压
2.7 V
标称供电电压
3.3 V
表面贴装
YES
技术
CMOS
温度等级
COMMERCIAL
端子面层
Tin/Lead (Sn/Pb)
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
Base Number Matches
1
文档预览
August 2004
rev 2.0
Low Power Peak EMI Reducing Solution
Features
Generates an EMI optimized clocking signal at the
output.
Integrated loop filter components.
Operates with a 3.3V ±10% supply.
Operating current less than 6mA.
Low power CMOS design.
Input frequency range: 6MHz to 12MHz.
Generates a 1X low EMI spread spectrum clock of
the input frequency.
Frequency deviation: ±0.75%.
Available in 6-pin TSOT-23, 8-pin SOIC and 8-pin
TSSOP packages.
ASM3P2760A
The ASM3P2760A uses the most efficient and optimized
modulation profile approved by the FCC and is
implemented by using a proprietary all digital method.
The ASM3P2760A 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 ASM3P2760A is targeted towards all portable
devices with very low power requirements like MP3
players and digital still cameras.
Product Description
The ASM3P2760A is a versatile spread spectrum
frequency modulator designed specifically for a wide
range of clock frequencies. The ASM3P2760A reduces
electromagnetic interference (EMI) at the clock source,
allowing system wide reduction of EMI of
all clock
dependent signals. The ASM3P2760A allows significant
system cost savings by reducing the number of circuit
board layers ferrite beads, shielding that are traditionally
required to pass EMI regulations.
Key Specifications
Description
Supply voltages
Frequency Range
Cycle-to-Cycle Jitter
Output Duty Cycle
Output Rise and Fall Time
Modulation Rate Equation
Frequency Deviation
Specification
V
DD
= 3.3V ±10%
6MHz < CLKIN < 12MHz
300 ps (maximum)
40/60% (worst case)
1.1 ns (maximum)
F
IN
/256
±0.75%
VDD
Block Diagram
PD
Modulation
XIN
Crystal
Oscillator
XOUT
Frequency
Divider
Feedback
Divider
PLL
Phase
Detector
Loop
Filter
VCO
Output
Divider
ModOUT
VSS
Alliance Semiconductor
2575, Augustine Drive
Santa Clara, CA
Tel: 408.855.4900
Fax: 408.855.4999
www.alsc.com
Notice: The information in this document is subject to change without notice.
August 2004
rev 2.0
Pin Configuration (6-pin TSOT-23)
PD
1
XOUT
2
XIN/CLKIN
3
6
ASM3P2760A
VSS
ModOUT
VDD
ASM3P2760A
5
4
Pin#
1
2
3
4
5
6
Pin Name
PD
XOUT
XIN/CLKIN
VDD
ModOUT
VSS
Type
I
O
I
P
O
P
Description
Power-down control pin. Pull low to enable power-down mode. Connect to VDD if not
used.
Crystal connection. If using an external reference, this pin must be left unconnected.
Crystal connection or external reference frequency input. This pin has dual functions. It
can be connected either to an external crystal or an external reference clock.
Power supply for the entire chip (3.3V)
Spread spectrum clock output.
Ground connection.
Low Power Peak EMI Reducing Solution
Notice: The information in this document is subject to change without notice.
2 of 9
August 2004
rev 2.0
Pin Configuration (8-pin SOIC and TSSOP)
XIN/CLKIN
1
XOUT
2
8
7
ASM3P2760A
VDD
NC
ModOUT
VSS
ASM3P2760A
PD
3
NC
4
6
5
Pin Description
Pin#
1
2
3
4
5
6
7
8
Pin Name
XIN/CLKIN
XOUT
PD
NC
VSS
ModOUT
NC
VDD
Type
I
O
I
-
P
O
-
P
Description
Crystal connection or external reference frequency input. This pin has dual functions. It
can be connected either to an external crystal or an external reference clock.
Crystal connection. If using an external reference, this pin must be left unconnected.
Power-down control pin. Pull low to enable power-down mode. Connect to VDD if not
used.
No connect.
Ground connection.
Spread spectrum clock output.
No connect.
Power supply for the entire chip (3.3V)
Modulation Profile
Specification
Description
Frequency Range
Modulation Equation
Frequency Deviation
Specification
6MHz < CLKIN < 12MHz
F
IN
/256
±0.75%
Low Power Peak EMI Reducing Solution
Notice: The information in this document is subject to change without notice.
3 of 9
August 2004
rev 2.0
Absolute Maximum Ratings
Symbol
V
DD
, V
IN
T
STG
Parameter
Voltage on any pin with respect to Ground
Storage temperature
ASM3P2760A
Rating
0.5 to +7.0
-65 to +125
Unit
V
°C
Operating temperature
T
A
0 to 70
°C
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.
DC Electrical Characteristics
(Test condition: All parameters are measured at room temperature (25°C) unless otherwise stated.)
Symbol
V
IL
V
IH
I
IL
I
IH
I
XOL
I
XOH
V
OL
V
OH
I
DD
I
PD
I
CC
V
DD
Input low voltage
Input high voltage
Input low current
Input high current
XOUT output low current (@4.0V, V
DD
=3.3V)
XOUT output high current (@2.5V, V
DD
=3.3V)
Output low voltage (V
DD
= 3.3 V, I
OL
= 20 mA)
Output high voltage (V
DD
= 3.3 V, I
OH
= 20 mA)
Static supply current*
Power-down current**
Dynamic supply current (3.3V, 12MHz and 15pF
loading)
Operating voltage
Parameter
Min
GND - 0.3
2.0
–
–
-
-
–
2.5
–
–
-
3.0
Typ
–
–
–
–
3
3
–
–
–
–
-
3.3
-
50
Max
0.8
V
DD
+ 0.3
-35
35
-
-
0.4
–
1.5
1.0
6
3.6
10
–
Unit
V
V
µA
µA
mA
mA
V
V
mA
µA
mA
V
mS
ù
t
ON
Power-up time(first locked cycle after power up)***
–
Z
OUT
Clock output impedance
–
*XIN/CLKIN pin is pulled low
**PD pin is pulled low
***V
DD
and XIN/CLKIN input are stable, PD pin is made high from low.
AC Electrical Characteristics
Symbol
CLKIN
ModOUT
t
LH
*
t
HL
*
t
JC
Input frequency
Output frequency
Output rise time (measured at 0.8V to 2.0V)
Output fall time (measured at 2.0V to 0.8V)
Jitter (cycle to cycle)
Parameter
Min
6
6
0.5
0.5
-
45
Typ
-
-
0.7
0.7
-
50
Max
12
12
1.1
1.0
360
55
Unit
MHz
MHz
ns
ns
ps
%
t
D
Output duty cycle
*t
LH
and t
HL
are measured into a capacitive load of 15pF
Low Power Peak EMI Reducing Solution
Notice: The information in this document is subject to change without notice.
4 of 9
August 2004
rev 2.0
ASM3P2760A
Package Information
6-pin TSOT-23
b
B
C
D
A2
A
e
A1
D
H
L
Symbol
Dimensions in millimeters
Min
Max
1.00
0.10
0.87 REF
1.40
0.30
2.50
2.70
0.95 BSC
0.10
MIN 0.20
0°
8°
0.35
1.80
0.50
3.00
3.10
Dimensions in inches
Min
-
0
Max
0.040
0.004
0.034 REF
0.055
0.012
0.098
0.106
0.071
0.019
0.118
0.122
A
A1
A2
B
b
C
D
e
H
L
-
0
0.037 BSC
0.004
0.014
MIN 0.008
0°
8°
Low Power Peak EMI Reducing Solution
Notice: The information in this document is subject to change without notice.
5 of 9
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参数对比
与ASM3P2760A-08SR相近的元器件有：ASM3P2760A-06OR、ASM3P2760A-08ST、ASM3P2760A-08TR、ASM3P2760AF-08TR、ASM3P2760AF-08TT、ASM3P2760A-08TT、ASM3P2760AF-08SR、ASM3P2760AF-06OR、ASM3P2760AF-08ST。描述及对比如下：
型号 ASM3P2760A-08SR ASM3P2760A-06OR ASM3P2760A-08ST ASM3P2760A-08TR ASM3P2760AF-08TR ASM3P2760AF-08TT ASM3P2760A-08TT ASM3P2760AF-08SR ASM3P2760AF-06OR ASM3P2760AF-08ST
描述 Clock Generator, 13MHz, CMOS, PDSO8, SOIC-8 Clock Generator, 13MHz, CMOS, PDSO6, TSOT-23, 6 PIN Clock Generator, 13MHz, CMOS, PDSO8, SOIC-8 Clock Generator, 13MHz, CMOS, PDSO8, TSSOP-8 Clock Generator, 13MHz, CMOS, PDSO8, ROHS COMPLIANT, TSSOP-8 Clock Generator, 13MHz, CMOS, PDSO8, ROHS COMPLIANT, TSSOP-8 Clock Generator, 13MHz, CMOS, PDSO8, TSSOP-8 Clock Generator, 13MHz, CMOS, PDSO8, ROHS COMPLIANT, SOIC-8 Clock Generator, 13MHz, CMOS, PDSO6, ROHS COMPLIANT, TSOT-23, 6 PIN Clock Generator, 13MHz, CMOS, PDSO8, ROHS COMPLIANT, SOIC-8
是否Rohs认证 不符合 不符合 不符合 不符合 符合 符合 不符合 符合 符合 符合
零件包装代码 SOIC SOT-23 SOIC SOIC SOIC SOIC SOIC SOIC SOT-23 SOIC
包装说明 SOP, SOP8,.25 VSSOP, TSOP6,.11,37 SOP, SOP8,.25 TSSOP, TSSOP8,.25 TSSOP, TSSOP8,.25 TSSOP, TSSOP8,.25 TSSOP, TSSOP8,.25 SOP, SOP8,.25 VSSOP, TSOP6,.11,37 SOP, SOP8,.25
针数 8 6 8 8 8 8 8 8 6 8
Reach Compliance Code unknown unknown unknown unknown unknown unknown unknown unknown unknown unknown
ECCN代码 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99
其他特性 ALSO OPERATES AT 2.5V SUPPLY ALSO OPERATES AT 2.5V SUPPLY ALSO OPERATES AT 2.5V SUPPLY ALSO OPERATES AT 2.5V SUPPLY ALSO OPERATES AT 2.5V SUPPLY ALSO OPERATES AT 2.5V SUPPLY ALSO OPERATES AT 2.5V SUPPLY ALSO OPERATES AT 2.5V SUPPLY ALSO OPERATES AT 2.5V SUPPLY ALSO OPERATES AT 2.5V SUPPLY
JESD-30 代码 R-PDSO-G8 R-PDSO-G6 R-PDSO-G8 R-PDSO-G8 R-PDSO-G8 R-PDSO-G8 R-PDSO-G8 R-PDSO-G8 R-PDSO-G6 R-PDSO-G8
长度 4.9 mm 2.9 mm 4.9 mm 4.4 mm 4.4 mm 4.4 mm 4.4 mm 4.9 mm 2.9 mm 4.9 mm
端子数量 8 6 8 8 8 8 8 8 6 8
最高工作温度 70 °C 70 °C 70 °C 70 °C 70 °C 70 °C 70 °C 70 °C 70 °C 70 °C
最大输出时钟频率 13 MHz 13 MHz 13 MHz 13 MHz 13 MHz 13 MHz 13 MHz 13 MHz 13 MHz 13 MHz
封装主体材料 PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
封装代码 SOP VSSOP SOP TSSOP TSSOP TSSOP TSSOP SOP VSSOP SOP
封装等效代码 SOP8,.25 TSOP6,.11,37 SOP8,.25 TSSOP8,.25 TSSOP8,.25 TSSOP8,.25 TSSOP8,.25 SOP8,.25 TSOP6,.11,37 SOP8,.25
封装形状 RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR
封装形式 SMALL OUTLINE SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH SMALL OUTLINE SMALL OUTLINE, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, THIN PROFILE, SHRINK PITCH SMALL OUTLINE SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH SMALL OUTLINE
峰值回流温度（摄氏度） NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED
电源 3.3 V 3.3 V 3.3 V 3.3 V 3.3 V 3.3 V 3.3 V 3.3 V 3.3 V 3.3 V
主时钟/晶体标称频率 13 MHz 13 MHz 13 MHz 13 MHz 13 MHz 13 MHz 13 MHz 13 MHz 13 MHz 13 MHz
认证状态 Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified
座面最大高度 1.75 mm 1 mm 1.75 mm 1.1 mm 1.1 mm 1.1 mm 1.1 mm 1.75 mm 1 mm 1.75 mm
最大压摆率 6 mA 6 mA 6 mA 6 mA 6 mA 6 mA 6 mA 6 mA 6 mA 6 mA
最大供电电压 3.6 V 3.6 V 3.6 V 3.6 V 3.6 V 3.6 V 3.6 V 3.6 V 3.6 V 3.6 V
最小供电电压 2.7 V 2.7 V 2.7 V 2.7 V 2.7 V 2.7 V 2.7 V 2.7 V 2.7 V 2.7 V
标称供电电压 3.3 V 3.3 V 3.3 V 3.3 V 3.3 V 3.3 V 3.3 V 3.3 V 3.3 V 3.3 V
表面贴装 YES YES YES YES YES YES YES YES YES YES
技术 CMOS CMOS CMOS CMOS CMOS CMOS CMOS CMOS CMOS CMOS
温度等级 COMMERCIAL COMMERCIAL COMMERCIAL COMMERCIAL COMMERCIAL COMMERCIAL COMMERCIAL COMMERCIAL COMMERCIAL COMMERCIAL
端子形式 GULL WING GULL WING GULL WING GULL WING GULL WING GULL WING GULL WING GULL WING GULL WING GULL WING
端子节距 1.27 mm 0.95 mm 1.27 mm 0.65 mm 0.65 mm 0.65 mm 0.65 mm 1.27 mm 0.95 mm 1.27 mm
端子位置 DUAL DUAL DUAL DUAL DUAL DUAL DUAL DUAL DUAL DUAL
处于峰值回流温度下的最长时间 NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED
宽度 3.91 mm 1.6 mm 3.91 mm 3 mm 3 mm 3 mm 3 mm 3.91 mm 1.6 mm 3.91 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 CLOCK GENERATOR, OTHER CLOCK GENERATOR, OTHER CLOCK GENERATOR, OTHER CLOCK GENERATOR, OTHER
Base Number Matches 1 1 1 1 1 1 1 1 1 1
厂商名称 ALSC [Alliance Semiconductor Corporation] ALSC [Alliance Semiconductor Corporation] ALSC [Alliance Semiconductor Corporation] ALSC [Alliance Semiconductor Corporation] ALSC [Alliance Semiconductor Corporation] ALSC [Alliance Semiconductor Corporation] ALSC [Alliance Semiconductor Corporation] ALSC [Alliance Semiconductor Corporation] - -
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器件捷径:
S0 S1 S2 S3 S4 S5 S6 S7 S8 S9 SA SB SC SD SE SF SG SH SI SJ SK SL SM SN SO SP SQ SR SS ST SU SV SW SX SY SZ T0 T1 T2 T3 T4 T5 T6 T7 T8 T9 TA TB TC TD TE TF TG TH TI TJ TK TL TM TN TO TP TQ TR TS TT TU TV TW TX TY TZ U0 U1 U2 U3 U4 U6 U7 U8 UA UB UC UD UE UF UG UH UI UJ UK UL UM UN UP UQ UR US UT UU UV UW UX UZ V0 V1 V2 V3 V4 V5 V6 V7 V8 V9 VA VB VC VD VE VF VG VH VI VJ VK VL VM VN VO VP VQ VR VS VT VU VV VW VX VY VZ W0 W1 W2 W3 W4 W5 W6 W7 W8 W9 WA WB WC WD WE WF WG WH WI WJ WK WL WM WN WO WP WR WS WT WU WV WW WY X0 X1 X2 X3 X4 X5 X7 X8 X9 XA XB XC XD XE XF XG XH XK XL XM XN XO XP XQ XR XS XT XU XV XW XX XY XZ Y0 Y1 Y2 Y4 Y5 Y6 Y9 YA YB YC YD YE YF YG YH YK YL YM YN YP YQ YR YS YT YX Z0 Z1 Z2 Z3 Z4 Z5 Z6 Z8 ZA ZB ZC ZD ZE ZF ZG ZH ZJ ZL ZM ZN ZP ZR ZS ZT ZU ZV ZW ZX ZY
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