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ASM3P2187BのメーカーはON Semiconductorです、この部品の機能は「Spread Spectrum Clock Generator」です。 |
部品番号 | ASM3P2187B |
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部品説明 | Spread Spectrum Clock Generator | ||
メーカ | ON Semiconductor | ||
ロゴ | |||
このページの下部にプレビューとASM3P2187Bダウンロード(pdfファイル)リンクがあります。 Total 6 pages
ASM3P2187A, ASM3P2187B
Product Preview
Spread Spectrum Clock
Generator for Mobile
Applications
Description
The ASM3P2187A/B is a versatile spread spectrum frequency
modulator designed specifically for a wide range of clock frequencies.
The ASM3P2187A/B reduces electromagnetic interference (EMI) at
the clock source, allowing system wide reduction of EMI of all clock
dependent signals. The ASM3P2187A/B allows significant system
cost savings by reducing the number of circuit board layers, ferrite
beads and shielding that are traditionally required to pass EMI
regulations.
ASM3P2187A device has an option of Spread ON/OFF and
ASM3P2187B device has Powerdown option.
Application
The ASM3P2187A/B is targeted towards mobile phones, mobile
audio players and PDAs.
Features
• Generates a 4X EMI Optimized Clock Signal at the Output
• Input Frequency: 12.5 MHz to 20 MHz
• Output Frequency: 50 MHz to 80 MHz
• SSON/PDB Option
• Selectable Centre Spread: ±0.5%, ±1.0%
• Low Power CMOS Design
• Supply Voltage: 3.3 V ± 0.3 V
• Industrial Temperature Range
• 8−pin TSSOP Package
• Drop−in Replacement for MB88155−412 Device
• These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant
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
TSSOP−8
T SUFFIX
CASE 948AL
PIN CONFIGURATIONS
1
CLKIN/XIN
VDD
XOUT
ModOUT
SSON
VSS
SEL REFOUT
ASM3P2187A
(Top View)
CLKIN/XIN
XOUT
PDB
SEL
1
ASM3P2187B
(Top View)
VDD
ModOUT
VSS
REFOUT
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:
ASM3P2187A/D
1 Page ASM3P2187A, ASM3P2187B
Table 5. ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Rating
Unit
VDD
Supply Voltage pin with respect to Ground
−0.5 to +4.6
V
VIN Input Voltage pin with respect to Ground
VSS−0.5 to VDD+0.5
V
VOUT
Output Voltage pin with respect to Ground
VSS−0.5 to VDD+0.5
V
TSTG
Storage temperature
−55 to +125
°C
Ts Max. Soldering Temperature (10 sec)
260 °C
TJ Junction Temperature
150 °C
TDV Static Discharge Voltage (As per JEDEC STD22− A114−B)
2 KV
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
Table 6. DC ELECTRICAL CHARACTERISTICS
Symbol
Parameter
VIL Input low voltage
VIH Input high voltage
IIL Input low current
IIH Input high current
VOL Output low voltage
For ModOUT, IOL = 4 mA
For REFOUT, IOL = 3 mA
VOH Output high voltage
For ModOUT, IOH = −4 mA
For REFOUT, IOH = −3 mA
ICC Dynamic supply current (Unloaded Outputs)
IDD Static supply current standby mode
(CLKIN / XIN pulled LOW)
VDD
Operating voltage
tON
ZOUT
CIN
CL
Power up time (first locked clock cycle after power up)
Clock output impedance
Input Capacitance
Load Capacitance
Min
VSS−0.3
2.0
VSS
2.4
3.3
Typ Max Unit
0.8 V
VDD+0.3
V
−50 mA
+50 mA
0.4 V
VDD
V
17 mA
8 mA
3.3 3.6 V
2 5 mS
50 W
7 pF
15 pF
Table 7. AC ELECTRICAL CHARACTERISTICS
Symbol
Parameter
CLKIN / XIN
Input Clock frequency
CLKOUT
Output Clock frequency REFOUT
ModOUT
MF Modulation Frequency
tLH (Note 2)
Output rise time ( Measured from 20% to 80% )
tHL (Note 2)
Output fall time ( Measured from 80% to 20% )
tJC Cycle−to−Cycle Jitter
tJp Period Jitter (REFOUT)
tD Output duty cycle
2. tLH and tHL are measured with a capacitive load of 15 pF.
Min
12.5
12.5
50
32.4
45
Typ
15
15
60
39
2
1.5
±250
±150
50
Max
20
20
80
52
2.5
2
±325
±200
55
Unit
MHz
MHz
KHz
nS
nS
pS
%
http://onsemi.com
3
3Pages ASM3P2187A, ASM3P2187B
Table 9. ORDERING INFORMATION
Part Number
Marking
ASM3P2187AG−08TT
3P2187AG
ASM3P2187AG−08TR
3P2187AG
ASM3I2187AG−08TT
3I2187AG
ASM3I2187AG−08TR
3I2187AG
ASM3P2187BG−08TT
3P2187BG
ASM3P2187BG−08TR
3P2187BG
ASM3I2187BG−08TT
3I2187BG
ASM3I2187BG−08TR
3I2187BG
Package Type
8−Pin TSSOP, TUBE, Green
8−Pin TSSOP, TAPE & REEL, Green
8−Pin TSSOP, TUBE, Green
8−Pin TSSOP, TAPE & REEL, Green
8−Pin TSSOP, TUBE, Green
8−Pin TSSOP, TAPE & REEL, Green
8−Pin TSSOP, TUBE, Green
8−Pin TSSOP, TAPE & REEL, Green
Temperature
Commercial
Commercial
Industrial
Industrial
Commercial
Commercial
Industrial
Industrial
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: 303−675−2175 or 800−344−3860 Toll Free USA/Canada
Fax: 303−675−2176 or 800−344−3867 Toll Free USA/Canada
Email: [email protected]
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
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
ASM3P2187A/D
6 Page | |||
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部品番号 | 部品説明 | メーカ |
ASM3P2187A | Spread Spectrum Clock Generator | ON Semiconductor |
ASM3P2187B | Spread Spectrum Clock Generator | ON Semiconductor |