ASM3P4200AG-28-TT [PULSECORE]
Multi-Output Custom Clock Generator; 多路输出定制时钟发生器
| 型号： | ASM3P4200AG-28-TT |
| 厂家： | 
PulseCore Semiconductor |
| 描述： | Multi-Output Custom Clock Generator |
| 文件： | 总7页 (文件大小：363K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
July 2006
rev 0.2
ASM3P4200A
Multi-Output Custom Clock Generator
Product Description
Features
• Generates seven clock outputs from an inexpensive
20MHz crystal or external reference clock.
• Output Frequencies are selectable through select bits
• Generates an EMI optimized clock signal at the output.
• ±1.5% (Typ) Centre Spread for Spread Spectrum
Clock Outputs
The ASM3P4200A is a versatile multi output custom
clock generator. The seven high frequency Clock outputs
are generated using an inexpensive 20MHz Crystal or
external reference clock. The accuracy of the 20MHz
Input Clock should be within ±50ppm. The output clocks
consist of a low EMI spread spectrum clock and other
non-spread clocks. Three Select bits choose the
combination of Output Clock Frequency. Refer to the
Output Frequency Selection Table for the values. The
device operates from a Supply Voltage of 3.3V± 5%
with a tolerable ripple voltage of 50mV . The device is
available in a 28 pin TSSOP JEDEC package.
• Operates with a 3.3V ± 5% Supply Voltage
• Available in 28-pin TSSOP.
Block Diagram
OE
S0 S1 S2
VDD
CLK2
CLK3
XIN / CLK
XOUT
Crystal
CLK4
CLK6
Oscillator
PLL
CLK7
CLK8
CLK1
CLK9
GND
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.
July 2006
rev 0.2
ASM3P4200A
Pin Assignment
1
2
3
28
27
26
25
XOUT
GND
OE
XIN / CLK
VCC
CLK1
S1
4
5
6
7
S2
S0
24 CLK9
23
VCC
VCC
ASM3P4200A
GND
CLK8
GND
CLK7
GND
CLK6
22
21
CLK2
VCC
8
9
20
19
18
CLK3
VCC
10
11
GND
CLK4
17
16
15
12
13
14
VCC
VCC
GND
CLK5
28 pin TSSOP
Output Frequency Selection Table
Selection
CLK1
(MHz)
CLK2
(MHz)
CLK3
(MHz)
CLK4
(MHz)
CLK5
(MHz)
CLK6
CLK7
(MHz)
CLK8*
(MHz)
CLK9*
(MHz)
Bits
(MHz)
S2
S1
S0
0
0
0
0
1
1
0
0
1
1
0
0
0
1
0
1
0
1
20
20
20
20
-
36.6
36.6
36.6
36.6
-
31.6
31.6
31.6
31.6
-
39.5
39.5
39.5
39.5
-
OFF
OFF
OFF
OFF
-
84
84
36
84
-
63
63
63
63
-
50
60
50
75
-
20
20
20
20
-
-
-
-
-
-
-
-
-
-
1
1
1
1
0
1
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
* CLK8 and CLK9 are Spread Spectrum Clocks
Multi-Output Custom Clock Generator
Notice: The information in this document is subject to change without notice.
2 of 7
July 2006
ASM3P4200A
rev 0.2
Pin Description
Pin #
1
Pin Name Pin Type
Pin Description
Crystal connection or external reference frequency input. It can be connected to
a 20MHz Fundamental mode crystal or to an external reference clock.
XIN / CLK
Input
2
3
VCC
CLK1
Power
Output
Connect to +3.3V.
Clock Output. Refer to the Output Frequency Selection Table for details.
Select Bit for Desired Output Frequency at different output pins. Refer to the
Output Frequency Selection Table for details. Has an internal pull down resistor
Select Bit for Desired Output Frequency at different output pins. Refer to the
Output Frequency Selection Table for details. Has an internal pull down resistor
4
S1
Input
5
S0
Input
6
7
8
9
VCC
CLK2
VCC
CLK3
VCC
GND
CLK4
VCC
CLK5
GND
VCC
CLK6
GND
CLK7
GND
Power
Output
Power
Output
Power
Power
Output
Power
Output
Power
Power
Output
Power
Output
Power
Connect to +3.3V.
Clock Output. Refer to the Output Frequency Selection Table for details.
Connect to +3.3V.
Clock Output. Refer to the Output Frequency Selection Table for details.
Connect to +3.3V.
Connect to ground.
Clock Output. Refer to the Output Frequency Selection Table for details.
Connect to +3.3V.
Clock Output. Refer to the Output Frequency Selection Table for details.
Connect to ground.
Connect to +3.3V.
Clock Output. Refer to the Output Frequency Selection Table for details.
Connect to ground.
10
11
12
13
14
15
16
17
18
19
20
Clock Output. Refer to the Output Frequency Selection Table for details.
Connect to ground.
Spread Spectrum Clock Output. Refer to the Output Frequency Selection Table
21
CLK8
Output
for details.
22
23
GND
VCC
Power
Power
Connect to ground.
Connect to +3.3V.
Spread Spectrum Clock Output. Refer to the Output Frequency Selection Table
24
CLK9
Output
for details.
Select Bit for Desired Output Frequency at different output pins. Refer to the
Output Frequency Selection Table for details. Has an internal pull down resistor
Output Enable bit. When this pin is made HIGH, the output clocks are enabled.
Has an Internal pull-up resistor
25
S2
Input
26
27
28
OE
Input
Power
Output
GND
XOUT
Connect to ground.
Crystal connection. If an external reference clock is used, this pin must be left
unconnected.
Absolute Maximum Ratings
Symbol
Parameter
Rating
Unit
VDD
VIN
TSTG
TA
Power Supply Voltage relative to Ground
Input Voltage relative to Ground (Input Pins)
Storage temperature
-0.5 to +4.6
-0.5 to VDD+0.3
-65 to +150
-20 to +85
260
V
°C
°C
°C
°C
Operating temperature
Max. Soldering Temperature (10 sec)
Junction Temperature
Ts
TJ
125
TDV
2
KV
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.
Multi-Output Custom Clock Generator
Notice: The information in this document is subject to change without notice.
3 of 7
July 2006
rev 0.2
ASM3P4200A
DC Electrical Characteristics
(Test condition: All parameters are measured at room temperature (+ 25°C) unless otherwise stated)
Symbol
VIL
Parameter
Min
GND - 0.3
Typ
-
-
-
-
3
3
-
-
TBD
TBD
3.3
-
Max
0.8
VDD + 0.3
Unit
V
V
µA
µA
mA
mA
V
Input low voltage
Input high voltage
Input low current
Input high current
VIH
IIL
IIH
2.0
-
-
-
-
-
2.5
-
-
3.135
-
-
-35
35
-
-
0.4
-
-
-
IXOL
IXOH
VOL
VOH
IDD
ICC
VDD
tON
XOUT output low current (@0.4V, VDD=3.3V)
XOUT output high current (@2.5V, VDD=3.3V)
Output low voltage (VDD = 3.3 V, IOL = 12mA)
Output high voltage (VDD = 3.3 V, IOH = 12mA)
Static supply current*
Dynamic supply current (3.3V, 20MHz and no load)
Operating Voltage
Power-up time (first locked cycle after power-up)**
Output impedance
V
mA
mA
V
mS
Ω
3.465
5
-
ZOUT
17
* XIN / CLK and OE Pins are pulled low
** VDD and XIN / CLK inputs are stable,
AC Electrical Characteristics
Symbol
Parameter
Min
Typ
Max Unit
XIN / CLK
Input frequency
-
20
-
MHz
Output Frequency = 20MHz (Pin 24)
Output Frequency = 50MHz
Output Frequency = 60MHz
Output Frequency = 75MHz
fd
Spread Percentage
-
±1.5
-
%
tLH*
Output rise time (Measured from 0.8V to 2.0V)
Output fall time ( Measured from 2.0V to 0.8V)
Jitter (Cycle to cycle)
-
-
-
1
1
nS
nS
pS
pS
%
tHL
*
-
tJC
tp
-
±250
±150
50
-
Jitter( Period)
-
-
tD
Output duty cycle
45
55
*tLH and tHL are measured into a capacitive load of 30pF
Multi-Output Custom Clock Generator
Notice: The information in this document is subject to change without notice.
4 of 7
July 2006
ASM3P4200A
rev 0.2
Package Information
28 lead Thin Shrunk Small Outline Package (4.40-MM Body) --- JEDEC Standard
Dimensions
Millimeters
Symbol
Inches
Min
Max
0.043
0.0059
0.041
0.3858
0.030
Min
…
0.05
0.80
9.60
0.50
Max
1.2
0.15
1.05
9.80
0.75
A
A1
A2
D
….
0.0020
0.031
0.3779
0.020
L
E
0.252 BSC
6.40 BSC
E1
R
R1
b
b1
c
c1
L1
e
0.169
0.004
0.004
0.007
0.007
0.004
0.004
0.039 REF
0.026 BSC
0°
0.177
….
….
0.012
0.010
0.008
0.006
4.30
0.09
0.09
0.19
0.19
0.09
0.09
1.0 REF
0.65 BSC
0°
4.50
…..
…..
0.30
0.25
0.20
0.16
8°
8°
θ1
θ2
θ3
12° REF
12° REF
12° REF
12° REF
Multi-Output Custom Clock Generator
Notice: The information in this document is subject to change without notice.
5 of 7
July 2006
rev 0.2
ASM3P4200A
Ordering Information
Part Number
Marking
Package
Temperature
Commercial
Commercial
ASM3P4200AG-28-TT
ASM3P4200AG-28-TR
3P4200AG
3P4200AG
28-Pin TSSOP, Tube, Green
28-Pin TSSOP, Tape and Reel, Green
Device Ordering Information
A S M 3 P 4 2 0 0 A G - 2 8 - T T
OR – TSOT23 -6,T/R
TT – TSSOP, TUBE
TR – TSSOP, T/R
VT – TVSOP, TUBE
VR – TVSOP, T/R
ST – SOIC, TUBE
AR – SSOP, T/R
SR – SOIC, T/R
QR – QFN, T/R
QT – QFN, TRAY
BT – BGA, TRAY
BR – BGA, T/R
UR – SOT-23, T/R
DR – QSOP, T/R
DT – QSOP, TUBE
AT – SSOP, TUBE
PIN COUNT
GREEN PACKAGE
PART NUMBER
X = Automotive
(-40C to +125C)
I = Industrial
P or n/c = Commercial
(0C to +70C)
(-40C to +85C)
1 – reserved
6 – power management
7 – power management
8 – power management
9 – Hi performance
0 - reserved
2 – Non PLL based
3 – EMI Reduction
4 – DDR support products
5 – STD Zero Delay Buffer
PulseCore Semiconductor Mixed Signal Product
Licensed under US patent #5,488,627, #6,646,463 and #5,631,920.
Multi-Output Custom Clock Generator
Notice: The information in this document is subject to change without notice.
6 of 7
July 2006
rev 0.2
ASM3P4200A
PulseCore Semiconductor Corporation
1715 S. Bascom Ave Suite 200
Campbell, CA 95008
Copyright © PulseCore Semiconductor
All Rights Reserved
Part Numbers: ASM3P4200A
Document Version: 0.2
Tel: 408-879-9077
Fax: 408-879-9018
www.pulsecoresemi.com
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.
Multi-Output Custom Clock Generator
Notice: The information in this document is subject to change without notice.
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