PulseCore ASM3I2811BG-08ST Low power emi reduction ic Datasheet

ASM3P2811A/B
ASM3P2812A/B
ASM3P2814A/B
November 2006
rev 1.5
Low Power EMI Reduction IC
Features
•
FCC approved method of EMI attenuation.
•
Provides up to 15dB EMI reduction.
•
Generates a 1X, 2X and 4X low EMI spread
spectrum clock of the input frequency.
• 1X: ASM3P2811A/B
Optimized for input frequency range from
10MHz to 40 MHz.
Internal loop filter minimizes external
Selectable spread options: Down Spread and
Center Spread.
•
8 spread frequency deviation selections:
• ±0.625% to –3.5%
Low inherent cycle-to-cycle jitter.
•
3.3V Operating Voltage.
•
CMOS/TTL compatible inputs and outputs.
•
Pin-out compatible with Cypress CY25811,
ferrite beads, shielding, and other passive components
that are traditionally required to pass EMI regulations.
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
EMI by increasing a signal’s bandwidth is called ‘spread
CY25812 and CY25814.
Products are available in Commercial and
Industrial temperature range.
•
down stream clock and data dependent
by oscillators and most frequency generators. Lowering
•
•
of EMI of
The ASM3P28XX modulates the output of a single PLL in
components and board space.
•
(EMI) at the clock source, allowing system wide reduction
savings by reducing the number of circuit board layers,
• 4X: ASM3P2814A/B
•
The ASM3P28XX reduces electromagnetic interference
signals. The ASM3P28XX allows significant system cost
• 2X: ASM3P2812A/B
•
deviation range from ±0.625% to –3.50%.
spectrum clock generation’.
The ASM3P28XX uses the most efficient and optimized
modulation profile approved by the FCC and is
implemented in a proprietary all-digital method.
Available in 8-pin SOIC and TSSOP Packages.
Applications
Product Description
The ASM3P28XX is targeted towards EMI management
The ASM3P28XX devices are versatile spread spectrum
for memory and LVDS interfaces in mobile graphic
frequency modulators designed specifically for a wide
chipsets and high-speed digital applications such as PC
range of input clock frequencies from 10MHz to 40MHz.
peripheral devices, consumer electronics, and embedded
(Refer Input/Output Frequency Range Selection Table).
controller systems.
The ASM3P28XX can generate an EMI reduced clock
from
crystal, ceramic resonator, or system clock. The
ASM3P28XX-A and the ASM3P28XX-B offer various
combinations
of
spread
options
and
percentage
deviations (Refer Output Frequency Deviation and
Spread Option Selection Table). These combinations
include Down and Center Spread and percentage
PulseCore Semiconductor Corporation
1715 S. Bascom Ave Suite 200, Campbell, CA 95008 • Tel: 408-879-9077 • Fax: 408-879-9018
www.pulsecoresemi.com
Notice: The information in this document is subject to change without notice.
ASM3P2811A/B
ASM3P2812A/B
ASM3P2814A/B
November 2006
rev 1.5
Block Diagram
VDD
D_C SRS FRS
PLL
Modulation
XIN
Crystal
Oscillator
Frequency
Divider
XOUT
Feedback
Divide
Phase
Detector
Loop
Filter
VCO
Output
Divider
ModOUT
VSS
Pin Configuration
XIN 1
VSS 2
D_C 3
P2811A/B
P2812A/B
P2814A/B
SRS 4
8
XOUT
7
VDD
6
FRS
5
ModOUT
Pin Description
Pin#
Pin Name
Type
Description
1
XIN
I
Crystal connection or external frequency input. This pin has dual functions. It can
be connected to either an external crystal or an external reference clock.
2
VSS
P
Ground to entire chip.
3
D_C
I
4
SRS
I
5
ModOUT
O
Spread spectrum clock output
6
FRS
I
Frequency range select. Digital logic input used to select Input frequency range
(Refer Input/Output Frequency Range Selection Table).
This pin has an internal pull-up resistor.
7
VDD
P
Power supply for the entire chip.
8
XOUT
O
Crystal connection. Output connection for an external crystal. If using an external
reference, this pin must be left unconnected.
Digital logic input used to select Down (LOW) or Center (HIGH) spread options.
(Refer Output Frequency Deviation and Spread Option Selection Table).
This pin has an internal pull-up resistor.
Spread range select. Digital logic input used to select frequency deviation
(Refer Output Frequency Deviation and Spread Option Selection Table).
This pin has an internal pull-up resistor.
Low Power EMI Reduction IC
Notice: The information in this document is subject to change without notice.
2 of 11
ASM3P2811A/B
ASM3P2812A/B
ASM3P2814A/B
November 2006
rev 1.5
Input/Output Frequency Range Selection Table
Part Number
FRS (pin 6)
ASM3P2811 (1X)
ASM3P2812 (2X)
ASM3P2814 (4X)
Modulation Rate
Input
(MHz)
Output
(MHz)
Input
(MHz)
Output
(MHz)
Input
(MHz)
Output
(MHz)
0
10-20
10-20
10-20
20-40
10-20
40-80
Input Frequency / 448
1
20-40
20-40
20-40
40-80
20-40
80-160
Input Frequency / 896
Output Frequency Deviation and Spread Option Selection Table
Part Number
D_C (pin 3)
SRS (pin 4)
Output frequency deviation and
spread Option
0
0
-2.50% (Down)
0
1
-3.50% (Down)
1
0
± 1.25% (Center)
1
1
±1.75% (Center)
0
0
-1.25% (Down)
0
1
-1.75% (Down)
1
0
± 0.625% (Center)
1
1
± 0.875% (Center)
ASM3P28XXA
ASM3P28XXB
Absolute Maximum Ratings
Symbol
VDD, VIN
TSTG
Parameter
Rating
Unit
Voltage on any pin with respect to Ground
-0.5 to +4.6
V
Storage temperature
-65 to +125
°C
-40 to 85
°C
TA
Operating temperature
Ts
Max. Soldering Temperature (10 sec)
260
°C
TJ
Junction Temperature
150
°C
2
KV
TDV
Static Discharge Voltage
(As per JEDEC STD 22- 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.
Low Power EMI Reduction IC
Notice: The information in this document is subject to change without notice.
3 of 11
ASM3P2811A/B
ASM3P2812A/B
ASM3P2814A/B
November 2006
rev 1.5
DC Electrical Characteristics
Symbol
Parameter
Min
Typ
Max
Unit
VIL
Input low voltage
VSS – 0.3
-
0.8
V
VIH
Input high voltage
-
-
VDD + 0.3
V
IIL
Input low current
(Inputs D_C, SRS and FRS are pulled high internally)
-60.00
-
-20.00
µA
IIH
Input high current
-
-
1.00
µA
-
-
12.00
mA
-
-
12.00
mA
IXOL
IXOH
XOUT Output low current
(VXOL@ 0.4V, VDD = 3.3V)
XOUT Output high current
(VXOH@ 2.5V, VDD = 3.3V)
VOL
Output low voltage (VDD = 3.3V, IOL = 20mA)
-
-
0.4
V
VOH
Output high voltage (VDD = 3.3V, IOH = 20mA)
2.5
-
-
V
7.1 @ fIN - min
-
13.9 @ fIN - max
mA
-
4.5
-
mA
3.0
3.3
3.6
V
Power up time (first locked clock cycle after power up)
-
-
500
µS
Clock out impedance
-
50
-
Ω
ICC
IDD
VDD
tON
ZOUT
Dynamic supply current
Normal mode (3.3V and 25pF loading)
Static supply current
Standby mode
Operating voltage
AC Electrical Characteristics
Symbol
Min
Typ
Max
Unit
Input frequency for ASM3P2811/12/13/14 A/B
10
-
40
MHz
Output frequency for ASM3P2811A/B
10
-
40
MHz
Output frequency for AS3P2812A/B
20
-
80
MHz
Output frequency for AS3P2814A/B
40
-
160
MHz
tLH*
Output rise time (measured at 0.8V to 2.0V)
0.5
-
0.96
nS
tHL*
Output fall time (measured at 2.0V to 0.8V)
0.78
-
1.7
nS
tJC
Jitter (Cycle to cycle)
-200
-
200
pS
TD
Output duty cycle
45
50
55
%
fIN
fOUT
Parameter
* tLH and tHL are measured into a capacitive load of 15pF
Low Power EMI Reduction IC
Notice: The information in this document is subject to change without notice.
4 of 11
ASM3P2811A/B
ASM3P2812A/B
ASM3P2814A/B
November 2006
rev 1.5
Package Information
8-Pin SOIC Package
H
E
D
A2
A
C
A1
D
θ
e
L
B
Dimensions
Symbol
Inches
Min
Max
Millimeters
Min
Max
A1
0.004
0.010
0.10
0.25
A
0.053
0.069
1.35
1.75
A2
0.049
0.059
1.25
1.50
B
0.012
0.020
0.31
0.51
C
0.007
0.010
0.18
0.25
D
0.193 BSC
4.90 BSC
E
0.154 BSC
3.91 BSC
e
0.050 BSC
1.27 BSC
H
0.236 BSC
6.00 BSC
L
0.016
0.050
0.41
1.27
θ
0°
8°
0°
8°
Note: Controlling dimensions are millimeters.
SOIC: 0.074 grams unit weight.
Low Power EMI Reduction IC
Notice: The information in this document is subject to change without notice.
5 of 11
ASM3P2811A/B
ASM3P2812A/B
ASM3P2814A/B
November 2006
rev 1.5
8-Pin TSSOP Package
H
E
D
A2
A
C
θ
e
A1
L
B
Dimensions
Symbol
Inches
Min
Millimeters
Max
A
Min
Max
0.043
1.10
A1
0.002
0.006
0.05
0.15
A2
0.033
0.037
0.85
0.95
B
0.008
0.012
0.19
0.30
c
0.004
0.008
0.09
0.20
D
0.114
0.122
2.90
3.10
E
0.169
0.177
4.30
4.50
e
0.026 BSC
0.65 BSC
H
0.252 BSC
6.40 BSC
L
0.020
0.028
0.50
0.70
θ
0°
8°
0°
8°
Note: Controlling dimensions are millimeters.
TSSOP: 0.0325 grams unit weight.
Low Power EMI Reduction IC
Notice: The information in this document is subject to change without notice.
6 of 11
ASM3P2811A/B
ASM3P2812A/B
ASM3P2814A/B
November 2006
rev 1.5
Ordering Codes
Part Number
Marking
Package Type
Temperature
ASM3P2811AF-08SR
3P2811AFS
SOIC – Tape & Reel, Pb free
Commercial
ASM3P2811AF-08ST
3P2811AFS
SOIC – Tube, Pb free
Commercial
ASM3P2811AF-08TR
3P2811AFT
TSSOP – Tape & Reel, Pb free
Commercial
ASM3P2811AF-08TT
3P2811AFT
TSSOP – Tube, Pb free
Commercial
ASM3P2811BF-08SR
3P2811BFS
SOIC – Tape & Reel, Pb free
Commercial
ASM3P2811BF-08ST
3P2811BFS
SOIC – Tube, Pb free
Commercial
ASM3P2811BF-08TR
3P2811BFT
TSSOP – Tape & Reel, Pb free
Commercial
ASM3P2811BF-08TT
3P2811BFT
TSSOP – Tube, Pb free
Commercial
ASM3P2812AF-08SR
3P2812AFS
SOIC – Tape & Reel, Pb free
Commercial
ASM3P2812AF-08ST
3P2812AFS
SOIC – Tube, Pb free
Commercial
ASM3P2812AF-08TR
3P2812AFT
TSSOP – Tape & Reel, Pb free
Commercial
ASM3P2812AF-08TT
3P2812AFT
TSSOP – Tube, Pb free
Commercial
ASM3P2812BF-08SR
3P2812BFS
SOIC – Tape & Reel, Pb free
Commercial
ASM3P2812BF-08ST
3P2812BFS
SOIC – Tube, Pb free
Commercial
ASM3P2812BF-08TR
3P2812BFT
TSSOP – Tape & Reel, Pb free
Commercial
ASM3P2812BF-08TT
3P2812BFT
TSSOP – Tube, Pb free
Commercial
ASM3P2814AF-08SR
3P2814AFS
SOIC – Tape & Reel, Pb free
Commercial
ASM3P2814AF-08ST
3P2814AFS
SOIC – Tube, Pb free
Commercial
ASM3P2814AF-08TR
3P2814AFT
TSSOP – Tape & Reel, Pb free
Commercial
ASM3P2814AF-08TT
3P2814AFT
TSSOP – Tube, Pb free
Commercial
ASM3P2814BF-08SR
3P2814BFS
SOIC – Tape & Reel, Pb free
Commercial
ASM3P2814BF-08ST
3P2814BFS
SOIC – Tube, Pb free
Commercial
ASM3P2814BF-08TR
3P2814BFT
TSSOP – Tape & Reel, Pb free
Commercial
ASM3P2814BF-08TT
3P2814BFT
TSSOP – Tube, Pb free
Commercial
ASM3I2811AF-08SR
3I2811AFS
SOIC – Tape & Reel, Pb free
Industrial
ASM3I2811AF-08ST
3I2811AFS
SOIC – Tube, Pb free
Industrial
ASM3I2811AF-08TR
3I2811AFT
TSSOP – Tape & Reel, Pb free
Industrial
ASM3I2811AF-08TT
3I2811AFT
TSSOP – Tube, Pb free
Industrial
ASM3I2811BF-08SR
3I2811BFS
SOIC – Tape & Reel, Pb free
Industrial
ASM3I2811BF-08ST
3I2811BFS
SOIC – Tube, Pb free
Industrial
ASM3I2811BF-08TR
3I2811BFT
TSSOP – Tape & Reel, Pb free
Industrial
ASM3I2811BF-08TT
3I2811BFT
TSSOP – Tube, Pb free
Industrial
ASM3I2812AF-08SR
3I2812AFS
SOIC – Tape & Reel, Pb free
Industrial
ASM3I2812AF-08ST
3I2812AFS
SOIC – Tube, Pb free
Industrial
ASM3I2812AF-08TR
3I2812AFT
TSSOP – Tape & Reel, Pb free
Industrial
ASM3I2812AF-08TT
3I2812AFT
TSSOP – Tube, Pb free
Industrial
ASM3I2812BF-08SR
3I2812BFS
SOIC – Tape & Reel, Pb free
Industrial
Low Power EMI Reduction IC
Notice: The information in this document is subject to change without notice.
7 of 11
ASM3P2811A/B
ASM3P2812A/B
ASM3P2814A/B
November 2006
rev 1.5
Ordering Codes (cont’d)
Part Number
Marking
Package Type
Temperature
ASM3I2812BF-08ST
3I2812BFS
SOIC - Tube, Pb free
Industrial
ASM3I2812BF-08TR
3I2812BFT
TSSOP – Tape & Reel, Pb free
Industrial
ASM3I2812BF-08TT
3I2812BFT
TSSOP – Tube, Pb free
Industrial
ASM3I2814AF-08SR
3I2814AFS
SOIC - Tape & Reel, Pb free
Industrial
ASM3I2814AF-08ST
3I2814AFS
SOIC - Tube, Pb free
Industrial
ASM3I2814AF-08TR
3I2814AFT
TSSOP – Tape & Reel, Pb free
Industrial
ASM3I2814AF-08TT
3I2814AFT
TSSOP – Tube, Pb free
Industrial
ASM3I2814BF-08SR
3I2814BFS
SOIC - Tape & Reel, Pb free
Industrial
ASM3I2814BF-08ST
3I2814BFS
SOIC - Tube, Pb free
Industrial
ASM3I2814BF-08TR
3I2814BFT
TSSOP – Tape & Reel, Pb free
Industrial
ASM3I2814BF-08TT
3I2814BFT
TSSOP – Tube, Pb free
ASM3P2811AG-08SR
3P2811AGS
SOIC – Tape & Reel, Green
Commercial
ASM3P2811AG-08ST
3P2811AGS
SOIC – Tube, Green
Commercial
ASM3P2811AG-08TR
3P2811AGT
TSSOP – Tape & Reel, Green
Commercial
ASM3P2811AG-08TT
3P2811AGT
TSSOP – Tube, Green
Commercial
ASM3P2811BG-08SR
3P2811BGS
SOIC – Tape & Reel, Green
Commercial
ASM3P2811BG-08ST
3P2811BGS
SOIC – Tube, Green
Commercial
ASM3P2811BG-08TR
3P2811BGT
TSSOP – Tape & Reel, Green
Commercial
ASM3P2811BG-08TT
3P2811BGT
TSSOP – Tube, Green
Commercial
ASM3P2812AG-08SR
3P2812AGS
SOIC – Tape & Reel, Green
Commercial
ASM3P2812AG-08ST
3P2812AGS
SOIC – Tube, Green
Commercial
ASM3P2812AG-08TR
3P2812AGT
TSSOP – Tape & Reel, Green
Commercial
ASM3P2812AG-08TT
3P2812AGT
TSSOP – Tube, Green
Commercial
ASM3P2812BG-08SR
3P2812BGS
SOIC – Tape & Reel, Green
Commercial
ASM3P2812BG-08ST
3P2812BGS
SOIC – Tube, Green
Commercial
ASM3P2812BG-08TR
3P2812BGT
TSSOP – Tape & Reel, Green
Commercial
ASM3P2812BG-08TT
3P2812BGT
TSSOP – Tube, Green
Commercial
ASM3P2814AG-08SR
3P2814AGS
SOIC – Tape & Reel, Green
Commercial
ASM3P2814AG-08ST
3P2814AGS
SOIC – Tube, Green
Commercial
ASM3P2814AG-08TR
3P2814AGT
TSSOP – Tape & Reel, Green
Commercial
ASM3P2814AG-08TT
3P2814AGT
TSSOP – Tube, Green
Commercial
ASM3P2814BG-08SR
3P2814BGS
SOIC – Tape & Reel, Green
Commercial
ASM3P2814BG-08ST
3P2814BGS
SOIC – Tube, Green
Commercial
ASM3P2814BG-08TR
3P2814BGT
TSSOP – Tape & Reel, Green
Commercial
ASM3P2814BG-08TT
3P2814BGT
TSSOP – Tube, Green
Commercial
Industrial
ASM3I2811AG-08SR
3I2811AGS
SOIC – Tape & Reel, Green
Industrial
ASM3I2811AG-08ST
3I2811AGS
SOIC – Tube, Green
Industrial
Low Power EMI Reduction IC
Notice: The information in this document is subject to change without notice.
8 of 11
ASM3P2811A/B
ASM3P2812A/B
ASM3P2814A/B
November 2006
rev 1.5
Ordering Codes (cont’d)
Part Number
Marking
Package Type
Temperature
ASM3I2811AG-08TR
3I2811AGT
TSSOP – Tape & Reel, Green
Industrial
ASM3I2811AG-08TT
3I2811AGT
TSSOP – Tube, Green
Industrial
ASM3I2811BG-08SR
3I2811BGS
SOIC – Tape & Reel, Green
Industrial
ASM3I2811BG-08ST
3I2811BGS
SOIC – Tube, Green
Industrial
ASM3I2811BG-08TR
3I2811BGT
TSSOP – Tape & Reel, Green
Industrial
ASM3I2811BG-08TT
3I2811BGT
TSSOP – Tube, Green
Industrial
ASM3I2812AG-08SR
3I2812AGS
SOIC – Tape & Reel, Green
Industrial
ASM3I2812AG-08ST
3I2812AGS
SOIC – Tube, Green
Industrial
ASM3I2812AG-08TR
3I2812AGT
TSSOP – Tape & Reel, Green
Industrial
ASM3I2812AG-08TT
3I2812AGT
TSSOP – Tube, Green
Industrial
ASM3I2812BG-08SR
3I2812BGS
SOIC – Tape & Reel, Green
Industrial
ASM3I2812BG-08ST
3I2812BGS
SOIC - Tube, Green
Industrial
ASM3I2812BG-08TR
3I2812BGT
TSSOP – Tape & Reel, Green
Industrial
ASM3I2812BG-08TT
3I2812BGT
TSSOP – Tube, Green
Industrial
ASM3I2814AG-08SR
3I2814AGS
SOIC - Tape & Reel, Green
Industrial
ASM3I2814AG-08ST
3I2814AGS
SOIC - Tube, Green
Industrial
ASM3I2814AG-08TR
3I2814AGT
TSSOP – Tape & Reel, Green
Industrial
ASM3I2814AG-08TT
3I2814AGT
TSSOP – Tube, Green
Industrial
ASM3I2814BG-08SR
3I2814BGS
SOIC - Tape & Reel, Green
Industrial
ASM3I2814BG-08ST
3I2814BGS
SOIC - Tube, Green
Industrial
ASM3I2814BG-08TR
3I2814BGT
TSSOP – Tape & Reel, Green
Industrial
ASM3I2814BG-08TT
3I2814BGT
TSSOP – Tube, Green
Industrial
Low Power EMI Reduction IC
Notice: The information in this document is subject to change without notice.
9 of 11
ASM3P2811A/B
ASM3P2812A/B
ASM3P2814A/B
November 2006
rev 1.5
Device Ordering Information
A S M 3 P 2 8 1 1 A G - 0 8 S R
R = Tape & Reel, T = Tube or Tray
O = SOT
S = SOIC
T = TSSOP
A = SSOP
V = TVSOP
B = BGA
Q = QFN
U = MSOP
E = TQFP
L = LQFP
U = MSOP
P = PDIP
D = QSOP
X = SC-70
DEVICE PIN COUNT
F = LEAD FREE AND RoHS COMPLIANT PART
G = GREEN PACKAGE, LEAD FREE, and RoHS
PART NUMBER
X= Automotive
I= Industrial
P or n/c = Commercial
(-40C to +125C) (-40C to +85C)
(0C to +70C)
1 = Reserved
2 = Non PLL based
3 = EMI Reduction
4 = DDR support products
5 = STD Zero Delay Buffer
6 = Power Management
7 = Power Management
8 = Power Management
9 = Hi Performance
0 = Reserved
PulseCore Semiconductor Mixed Signal Product
.
Licensed under US patent #5,488,627, #6,646,463 and #5,631,920
Low Power EMI Reduction IC
Notice: The information in this document is subject to change without notice.
10 of 11
ASM3P2811A/B
ASM3P2812A/B
ASM3P2814A/B
November 2006
rev 1.5
PulseCore Semiconductor Corporation
1715 S. Bascom Ave Suite 200
Campbell, CA 95008
Tel: 408-879-9077
Fax: 408-879-9018
www.pulsecoresemi.com
Copyright © PulseCore Semiconductor
All Rights Reserved
Part Numbers:
ASM3P2811A/B
ASM3P2812A/B
ASM3P2814A/B
Document Version: v1.5
Note: This product utilizes US Patent # 6,646,463 Impedance Emulator Patent issued to PulseCore Semiconductor, dated 11-11-2003
© Copyright 2006 PulseCore Semiconductor Corporation. All rights reserved. Our logo and name are trademarks or
registered trademarks of PulseCore Semiconductor. All other brand and product names may be the trademarks of their
respective companies. PulseCore reserves the right to make changes to this document and its products at any time without
notice. PulseCore assumes no responsibility for any errors that may appear in this document. The data contained herein
represents PulseCore’s best data and/or estimates at the time of issuance. PulseCore reserves the right to change or correct
this data at any time, without notice. If the product described herein is under development, significant changes to these
specifications are possible. The information in this product data sheet is intended to be general descriptive information for
potential customers and users, and is not intended to operate as, or provide, any guarantee or warrantee to any user or
customer. PulseCore does not assume any responsibility or liability arising out of the application or use of any product
described herein, and disclaims any express or implied warranties related to the sale and/or use of PulseCore products
including liability or warranties related to fitness for a particular purpose, merchantability, or infringement of any intellectual
property rights, except as express agreed to in PulseCore’s Terms and Conditions of Sale (which are available from
PulseCore). All sales of PulseCore products are made exclusively according to PulseCore’s Terms and Conditions of Sale.
The purchase of products from PulseCore does not convey a license under any patent rights, copyrights; mask works rights,
trademarks, or any other intellectual property rights of PulseCore or third parties. PulseCore does not authorize its products
for use as critical components in life-supporting systems where a malfunction or failure may reasonably be expected to result
in significant injury to the user, and the inclusion of PulseCore products in such life-supporting systems implies that the
manufacturer assumes all risk of such use and agrees to indemnify PulseCore against all claims arising from such use.
Low Power EMI Reduction IC
Notice: The information in this document is subject to change without notice.
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