PULSECORE I2384A-08ST

P2384A
February 2007
rev 0.2
Low Cost Frequency Multiplier
Product Description
Features
•
Generates 4X clocks of the Input Clock frequency
•
Input clock frequency range from 20 MHz to 78 MHz
•
Provides up to 312 MHz Output Clock frequency
•
External loop filter
•
Low Cycle-to-cycle jitter
•
3.3 V Operating Voltage
•
TTL or CMOS compatible outputs
•
Ultra-low power CMOS design
•
Available in Commercial and Industrial temperature
The P2384A is a versatile frequency multiplier that is
designed specifically as cost effective alternative to the
high precision frequency oscillator.
The P2384A can generate a 4X output clock of the input
frequency that allows system cost savings by using an
inexpensive crystal or resonator to achieve high frequency
multiplication.
The P2384A provides up to 312 MHz output clock
frequency through the use of the Phase-Lock-Loop (PLL)
technique which delivers low jitter and high precision
ranges
•
synthesized clocks.
Available in 8-pin SOIC and TSSOP Packages
Applications
The P2384A is targeted towards the high frequency CAN
OSC replacement market.
Applications include xDSL,
routers, networking, PC peripherals, and embedded
systems.
Block Diagram
VDD
PDB
FS0
LF
PLL
Modulation
XIN
XOUT
Crystal
Oscillator
Frequency divider
Phase detector
Output
divider
VCO
Feedback divider
CLKOUT
VSS
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.
P2384A
February 2007
rev 0.2
Pin Configuration
XIN 1
8
VDD
7
FS0
PDB 3
6
CLKOUT
LF 4
5
VSS
XOUT
2
P2384A
Pin Description
Description
Pin#
Pin Name
Type
1
XIN
I
2
XOUT
O
3
PDB
I
4
LF
I
External loop filter for the PLL. (See Loop Filter Selection Table for value.)
5
VSS
P
Ground connection. Connect to system ground.
6
CLKOUT
O
Clock output.
Crystal connection or external reference frequency input
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 directly to
VDD in normal operation and if not used.
7
FS0
I
Digital logic input used to select Input frequency range.
(See Input Frequency Selection.) This pin has an internal pull-up resistor.
8
VDD
P
Connect to +3.3 V.
Input Frequency Selection
FS0
Input (MHz)
Output Frequency Scaling (MHz)
0
20 to 38
80 to 152
1
39 to 78
156 to 312
Low Cost Frequency Multiplier
Notice: The information in this document is subject to change without notice.
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P2384A
February 2007
rev 0.2
Loop Filter Selection Table ( VDD 3.3 V )
Pin 4 LF
R1
C1
C2
Input (MHz)
FS0
C1(pF)
C2(pF)
R1 (ohms)
20
21 - 22
23 - 24
25 - 26
27 - 28
29 - 30
31 - 32
33 - 34
35 - 36
37 - 38
39 - 42
43 - 46
47 - 50
51 - 54
55 - 58
59 - 62
63 - 66
67 - 70
71 - 74
75 - 78
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
270
270
270
270
270
270
270
270
270
270
270
270
270
270
270
270
270
270
270
270
100,000
100,000
100,000
100,000
100,000
100,000
100,000
100,000
100,000
100,000
100,000
100,000
100,000
100,000
100,000
100,000
100,000
100,000
100,000
100,000
330
390
510
560
620
750
820
910
1,000
1,200
330
390
510
560
620
750
820
910
1,000
1,200
Low Cost Frequency Multiplier
Notice: The information in this document is subject to change without notice.
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P2384A
February 2007
rev 0.2
Output Clock Selection Example
The P2384A can generate 4X Clock from the Input reference frequency. P2384A’s internal crystal oscillator circuits allow
the use of an inexpensive crystal or resonator to replace expensive CAN oscillators that are used in networking, PC
peripherals, xDSL, and consumer applications for high frequency generation. Its input frequency range is optimized for
operations from 20 MHz to 78 MHz, and its output frequency can deliver up to 312 MHz.
25 MHz
1 XIN
VDD 8
2 XOUT
FS0 7
3 PDB
C2
R1
C1
4 LF
CLKOUT 6
0.1µF
+3.3V
Modulated 100 MHz
VSS 5
P2384A
Low Cost Frequency Multiplier
Notice: The information in this document is subject to change without notice.
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P2384A
February 2007
rev 0.2
Absolute Maximum Ratings
Symbol
Parameter
VDD, VIN
Voltage on any pin with respect to Ground
-0.5 to +4.6
TSTG
Rating
Unit
V
Storage temperature
-65 to +125
°C
TA
Operating temperature
-40 to +85
°C
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.
DC Electrical Characteristics
Symbol
Parameter
Min
Typ
Max
Unit
VIL
Input low voltage
VSS - 0.3
–
0.8
V
VIH
Input high voltage
2.0
–
VDD + 0.3
V
–
180
–
µA
–
0
–
µA
IIL
IIH
Input low current
(Internal input pull-up resistor on FS0 and PDB)
Input high current
(Internal input pull-up resistor on FS0 and PDB)
IXOL
XOUT output low current
–
10
–
mA
IXOH
XOUT output high current
–
10
–
mA
VOL
Output low voltage (VDD = 3.3 V, IOL = 20 mA)
–
–
0.4
V
VOH
Output high voltage (VDD = 3.3 V, IOH = 20 mA)
2.5
–
–
V
IDD
Static supply current*
–
3
–
mA
ICC
Typical dynamic supply current
(25 pF scope probe loading)
–
28
–
mA
VDD
Operating voltage
3.0
3.3
3.6
V
tON
Power-up time
–
7
–
mS
Clock output impedance
–
28
–
Ω
ZOUT
* XIN and PBD are pulled low.
Low Cost Frequency Multiplier
Notice: The information in this document is subject to change without notice.
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P2384A
February 2007
rev 0.2
AC Electrical Characteristics
Symbol
Min
Typ
Max
Unit
Input frequency
20
–
78
MHz
fOUT
Output frequency
80
–
312
MHz
tLH*
Output rise time (measured at 0.8 V to 2.0 V)
–
1
–
nS
Output fall time (measured at 2.0 V to 0.8 V)
–
1
–
nS
tJC
Jitter (cycle to cycle)
–
±200
–
pS
tD
Output duty cycle
45
50
55
%
fIN
tHL
*
Parameter
* tLH and tHL are measured into a capacitive load of 15 pF
Low Cost Frequency Multiplier
Notice: The information in this document is subject to change without notice.
6 of 10
P2384A
February 2007
rev 0.2
Package Information
8-lead (150-mil) 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°
Low Cost Frequency Multiplier
Notice: The information in this document is subject to change without notice.
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P2384A
February 2007
rev 0.2
8-lead Thin Shrunk Small Outline Package (4.40-MM Body)
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°
Low Cost Frequency Multiplier
Notice: The information in this document is subject to change without notice.
8 of 10
P2384A
February 2007
rev 0.2
Ordering Codes
Part Number
Marking
Package Type
P2384A-08ST
P2384AG
8-pin SOIC, Tube, GREEN
P2384A-08SR
P2384AG
8-pin SOIC, Tape & reel, GREEN
P2384A-08TT
P2384AG
8-pin TSSOP, Tube, GREEN
P2384A-08TR
P2384AG
8-pin TSSOP, Tape & reel, GREEN
I2384A-08ST
I2384AG
8-pin SOIC, Tube, GREEN
I2384A-08SR
I2384AG
8-pin SOIC, Tape & reel, GREEN
I2384A-08TT
I2384AG
8-pin TSSOP, Tube, GREEN
I2384A-08TR
I2384AG
8-pin TSSOP, Tape & reel, GREEN
P2384AF-08ST
P2384AF
8-pin SOIC, Tube, Pb Free
P2384AF-08SR
P2384AF
8-pin SOIC, Tape & reel, Pb Free
P2384AF-08TT
P2384AF
8-pin TSSOP, Tube, Pb Free
P2384AF-08TR
P2384AF
8-pin TSSOP, Tape & reel, Pb Free
I2384AF-08ST
I2384AF
8-pin SOIC, Tube, Pb Free
I2384AF-08SR
I2384AF
8-pin SOIC, Tape & reel, Pb Free
I2384AF-08TT
I2384AF
8-pin TSSOP, Tube, Pb Free
I2384AF-08TR
I2384AF
8-pin TSSOP, Tape & reel, Pb Free
Qty per reel
Temperature
Commercial
2500
Commercial
Commercial
2500
Commercial
Industrial
2500
Industrial
Industrial
2500
Industrial
Commercial
2500
Commercial
Commercial
2500
Commercial
Industrial
2500
Industrial
Industrial
2500
Industrial
Device Ordering Information
P
2 3 8 4 A X - 0 8 S T
SR - SOIC, T/R
TT – TSSOP, TUBE
TR - TSSOP, T/R
ST – SOIC, TUBE
PIN COUNT
F = LEAD FREE AND RoHS COMPLIANT PART
G = GREEN PACKAGE, LEAD FREE, and RoHS
Deviation (%) and Spread option Identifier
DEVICE NUMBER
P = Commercial Temperature Range (0°C to 70°C)
I = Industrial Temperature Range (-40°C to 85°C)
Licensed under US patent Nos 5,488,627 and 5,631,920.
Low Cost Frequency Multiplier
Notice: The information in this document is subject to change without notice.
9 of 10
P2384A
February 2007
rev 0.2
Copyright © PulseCore Semiconductor
All Rights Reserved
Part Number: P2384A
Document Version: v0.2
PulseCore Semiconductor Corporation
1715 S. Bascom Ave Suite 200
Campbell, CA 95008
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
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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 Cost Frequency Multiplier
Notice: The information in this document is subject to change without notice.
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