PCS1P2859A [PULSECORE]
Multi-Output Clock Synthesizer; 多路输出时钟合成器
| 型号： | PCS1P2859A |
| 厂家： | 
PulseCore Semiconductor |
| 描述： | Multi-Output Clock Synthesizer |
| 文件： | 总7页 (文件大小：364K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
January 2007
rev 0.1
PCS1P2859A
Multi-Output Clock Synthesizer
Features
Product Description
• Generates multiple clock outputs from an inexpensive
25MHz crystal or external reference clock
• Frequency outputs:
The PCS1P2859A is
a
Precision multi-PLL based
frequency synthesizer. The six Clock outputs are
generated using an inexpensive 25MHz Crystal. The
outputs consist of 25 MHz reference clock, 33 MHz, two
127MHz and two 48MHz clocks. The SHUTDOWNB tri-
states all the clocks when enabled. The device operates
from a Supply Voltage of 3.3V±5%V. The device is
available in a 16-pin TSSOP JEDEC package for
Industrial temperature range.
•
•
•
•
25MHz Reference clock
33MHz
48MHz
127MHz
• Zero ppm frequency synthesis error for all CLK outputs
• 3.3V ± 5%V Supply Voltage
• Low jitter design
Application
• Packaged in 16 pin TSSOP
• Industrial Temperature range
PCS1P2859A is targeted for use in high-end multimedia,
• Compatible with CY22393XC-F12
• Advanced low-power CMOS process
communications
and
consumer
applications.
Block Diagram
SHUTDOWNB
48M_ENBLB
VDD
AVDD
33MHz
CLKIN/XIN
XOUT
Crystal
Oscillator
PLL
2
2
48MHz
127MHz
25MHz
AGND
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.
January 2007
rev 0.1
PCS1P2859A
Pin Diagram
16
15
14
13
12
11
1
2
3
4
127MHz
SHUTDOWNB
48M_ENBLB
AVDD
VDD
AGND
XIN
NC
5
6
XOUT
NC
GND
33MHz
REFOUT
48MHz
7
8
10
9
48MHz
127MHz
Pin Description
Pin #
Pin Name
127MHz
Pin Type
Pin Description
1
2
3
Output
Power
Power
127MHz Clock Output
Connect to +3.3V
Connect to ground
VDD
AGND
Crystal connection or external reference frequency input. It can be connected
4
5
XIN
Input
to a 25MHz Fundamental mode crystal
Connection to crystal. If using an external reference clock, this pin must be
left unconnected
XOUT
Output
6
7
8
REFOUT
48MHz
48MHz
127MHz
33MHz
GND
NC
NC
AVDD
Output
Output
Output
Output
Output
Power
25MHz Reference Clock output
48MHz Clock Output
48MHz Clock Output
127MHz Clock Output
33MHz Clock Output
Connect to ground
No connection
9
10
11
12
13
14
No connection
Connect to +3.3V
Power
Input
48MHz Output Enable bit. When this pin is made LOW, the 48MHz clocks
are enabled.Tri-states 48MHz clocks when this pin is HIGH.
Output Enable bit. When this pin is made HIGH, all clocks are enabled.
Tri-states all clocks when this pin is LOW.
15
16
48M_ENBLB
SHUTDOWNB
Input
Multi-Output Clock Synthesizer
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Notice: The information in this document is subject to change without notice.
January 2007
PCS1P2859A
rev 0.1
Absolute Maximum Ratings
Symbol
Parameter
Rating
-0.5 to +4.6
-0.5 to VDD+0.3
-65 to +150
260
Unit
VDD
VIN
TSTG
Ts
Power Supply Voltage relative to Ground
Input Voltage relative to Ground (Input Pins)
Storage temperature
Max. Soldering Temperature (10 sec)
Junction Temperature
V
°C
°C
°C
TJ
125
Static Discharge Voltage
(As per JEDEC STD22- A114-B)
TDV
2
KV
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
Parameter
VDD /AVDD Operating Voltage
Description
Min
3.135
-40
Typ
3.3
Max
3.465
+85
Unit
V
TA
CL
Operating Temperature (Ambient Temperature)
Load Capacitance
°C
15
pF
pF
CIN
Input Capacitance
5
DC Electrical Characteristics
Symbol Parameter
Conditions
Min
3.135
2.2
Typ
3.3
Max
Units
VDD /AVDD Operating Voltage
3.465
VDD=0.3
1.0
V
VIH
VIL
Input High Voltage
Input Low Voltage
V
GND-0.3
2.4
V
VOH
VOL
IOZ
Output High Voltage
Output Low Voltage
Output Leakage Current
VDD=3.135,IOH= -12mA
VDD=3.135, IOL= 12mA
Three-state outputs
V
0.4
V
TBD
µA
CLKIN and SHUTDOWN
ICC
IDD
Static Current
TBD
µA
mA
Ω
Pins pulled low
Dynamic Current
No Load, All Clocks on
TBD
23
Nominal output
ZOUT
impedance
Multi-Output Clock Synthesizer
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Notice: The information in this document is subject to change without notice.
January 2007
PCS1P2859A
rev 0.1
AC Electrical Characteristics
Symbol
Parameter
Min
Typ
Max Unit
CLKIN/XIN
Input Frequency
25
MHz
MHz
MHz
MHz
MHz
Pin 10
33
48
127
25
Pin 7,8
Pin 1,9
Pin 6
CLK OUT
Output Frequency
tLH
tHL
tJC
1
1
1
Output Rise Time (Measured from 20% to 80%)
Output Fall Time (Measured from 80% to 20%)
Cycle to cycle Jitter
0.75
0.75
1.4
2.0
2.0
nS
nS
1.4
±TBD
±TBD
0
pS
TPJ
1
Period Jitter
pS
Synthesis Error (Output Frequency)
Output Duty Cycle
ppm
%
tD1
45
50
55
3
tLOCK
PLL Lock Time from Power-Up
1
mS
NOTE: 1. Measured with 15pF capacitive load
Typical Crystal Oscillator Circuit
R1 = 510Ω
C1 = 27 pF
C2 = 27 pF
Typical Crystal Specifications
Fundamental AT cut parallel resonant crystal
Nominal frequency
25MHz
Frequency tolerance
Operating temperature range
Storage temperature
± 50 ppm or better at 25°C
-25°C to +85°C
-40°C to +85°C
18pF
Load capacitance
Shunt capacitance
ESR
7pF maximum
25ꢀ
Multi-Output Clock Synthesizer
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Notice: The information in this document is subject to change without notice.
January 2007
rev 0.1
PCS1P2859A
Package Information
16-lead Thin Shrunk Small Outline Package (4.40-MM Body)
1
8
PIN 1 ID
E
H
9
16
A
Seating Plane
C
θ
A2
A1
e
B
L
D
Dimensions
Max
Symbol
Inches
Millimeters
Min
Min
Max
A
A1
A2
B
0.043
0.006
0.041
0.012
0.008
0.201
0.177
1.20
0.15
1.05
0.30
0.20
5.10
4.50
0.002
0.031
0.007
0.004
0.193
0.169
0.05
0.80
0.19
0.09
4.90
4.30
C
D
E
e
0.026 BSC
0.252 BSC
0.65 BSC
6.40 BSC
H
L
0.020
0°
0.030
8°
0.50
0°
0.75
8°
θ
Multi-Output Clock Synthesizer
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Notice: The information in this document is subject to change without notice.
January 2007
rev 0.1
PCS1P2859A
Ordering Information
Marking
1P2859AG
1P2859AG
1I2859AG
1I2859AG
Part Number
PCS1P2859AG-16TR
PCS1P2859AG-16TT
PCS1I2859AG-16TR
PCS1I2859AG-16TT
Package
16-Pin TSSOP, TAPE & REEL, Green
16-Pin TSSOP, TUBE, Green
16-Pin TSSOP, TAPE & REEL, Green
16-Pin TSSOP, TUBE, Green
Temperature
Commercial
Commercial
Industrial
Industrial
Device Ordering Information
P C S 1 P 2 8 5 9 A G - 1 6 - T R
R = Tape & Reel, T = Tube or Tray
O = TSOT23
S = SOIC
U = MSOP
E = TQFP
L = LQFP
U = MSOP
P = PDIP
J=TSOT26
T = TSSOP
A = SSOP
V = TVSOP
B = BGA
D = QSOP
X = SC-70
Q = QFN
DEVICE PIN COUNT
G = GREEN PACKAGE, LEAD FREE, and RoHS
PART NUMBER
X= Automotive
I= Industrial
P or n/c = Commercial
(0C to +70C)
(-40C to +125C) (-40C to +85C)
1 = Reserved
6 = Power Management
7 = Power Management
8 = Power Management
9 = Hi Performance
2 = Non PLL based
3 = EMI Reduction
4 = DDR support products
PulseCore Semiconductor Mixed Signal Product
Licensed under US patent Nos 5,488,627 and 5,631,920.
Multi-Output Clock Synthesizer
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Notice: The information in this document is subject to change without notice.
January 2007
rev 0.1
PCS1P2859A
Copyright © Alliance Semiconductor
All Rights Reserved
PulseCore Semiconductor Corporation
1715 S. Bascom Ave Suite 200
Campbell, CA 95008
Part Numbers: PCS1P2859A
Document Version: 0.1
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 2007 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 Clock Synthesizer
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Notice: The information in this document is subject to change without notice.
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