PLL701-17
Low EMI Spread Spectrum Multiplier Clock
FEATURES
•
•
•
•
•
•
•
•
Spread Spectrum Clock Generator with selectable
multiplier ( 1x, 2x, 2.94x and 4x ).
Reference input frequency: 16MHz-60MHz.
Output frequency ranges: 16MHz to 200MHz.
Center Spread Modulation.
TTL/CMOS compatible outputs.
3.3V Operating Voltage.
Low short term jitter.
Available in 8-Pin 150mil SOIC.
PIN CONFIGURATION
FIN
S2^
S1^
S0
v
1
8
VDD
S3
v
FOUT
GND
PLL701-17
2
3
4
7
6
5
FIN = 16 ~ 60 Mhz
Note:
v: 30kΩ Internal Pull down. ^: 30kΩ Internal Pull up.
DESCRIPTION
The PLL701-17 is a Spread Spectrum Clock
Generator designed for the purpose of reducing EMI
in high-speed digital systems, with selectable Center
Spread modulation magnitude (see table below). The
multiplication factor can be selected from 4 multiplier
modes. The device operates over a wide range of
input frequencies and provides 1x, 2x. 2.94x and 4x
modulated clock outputs.
OUTPUT CLOCK (FOUT) SELECTION
S3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
S2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
S1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
S0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
FIN Range
(MHz)
16
16
16
16
16
16
16
16
-
-
-
-
-
-
-
-
40
40
40
40
40
40
40
40
Spread Spectrum Modulation
FOUT
X1
X1
X1
X1
X2
X2
X2
X2
X2
X2
X4
X4
X2.94
X2.94
X2.94
X2.94
Frequency
Magnitude
±0.75%
±1.00%
±1.25%
±1.50%
±0.25%
±0.50%
±0.75%
±1.00%
±1.25%
±1.50%
±0.25%
±0.50%
±0.25%
±0.50%
±0.75%
±1.00%
Rev 01/17/06 Page 1
Fin / 512
24 - 60
24 - 60
24 - 50
24 - 50
16
16
16
16
-
-
-
-
40
40
40
40
Fin / 1024
Fin / 1000
47745 Fremont Blvd., Fremont, California 94538 Tel (510) 492-0990 Fax (510) 492-0991
www.phaselink.com
PLL701-17
Low EMI Spread Spectrum Multiplier Clock
BLOCK DIAGRAM
FIN
PLL
SST
FOUT
S(0:3)
Control
Logic
PIN DESCRIPTIONS
Name
FIN
S2
S1
S0
GND
FOUT
S3
VDD
Number
1
2
3
4
5
6
7
8
Type
I
I
I
I
P
O
I
P
Description
Input Clock connection. 16MHz to 60MHz.
Digital control input to select multiplication factor and SST modulation
amplitude. Has internal pull-up.
Digital control input to select multiplication factor and SST modulation
amplitude. Has internal pull-up.
Digital control input to select multiplication factor and SST modulation
amplitude. Has internal pull-down.
Ground connection.
SST Modulated Clock Output. The frequency before modulation is synthesized
by multiplying the input frequency by 1X, 2X, 2.94Xor 4X, depending on S(0:3).
Digital control input to select multiplication factor and SST modulation
amplitude. Has internal pull-down.
3.3V Power Supply connection.
ELECTRICAL SPECIFICATIONS
1. Absolute Maximum Ratings
PARAMETERS
Supply Voltage
Input Voltage, dc
Output Voltage, dc
Storage Temperature
Ambient Operating Temperature*
Junction Temperature
Lead Temperature (soldering, 10s)
ESD Protection, Human Body Model
SYMBOL
V
DD
V
I
V
O
T
S
T
A
T
J
MIN.
-0.5
-0.5
-65
-40
MAX.
4.6
V
DD
+0.5
V
DD
+0.5
150
85
125
260
2
UNITS
V
V
V
°C
°C
°C
°C
kV
Exposure of the device under conditions beyond the limits specified by Maximum Ratings for extended periods may cause permanent damage to the
device and affect product reliability. These conditions represent a stress rating only, and functional operations of the device at these or any other
conditions above the operational limits noted in this specification is not implied.
*
Note:
Operating Temperature is guaranteed by design for all parts (COMMERCIAL and INDUSTRIAL), but tested for COMMERCIAL grade only.
47745 Fremont Blvd., Fremont, California 94538 Tel (510) 492-0990 Fax (510) 492-0991
www.phaselink.com
Rev 01/17/06 Page 2
PLL701-17
Low EMI Spread Spectrum Multiplier Clock
2. DC/AC Specifications
PARAMETERS
Supply Voltage
Supply Current
Input High Voltage
Input Low Voltage
Input High Current
Input Low Current
Output High Voltage
Output Low Voltage
Input Frequency
Recovery from interruption of F
IN
Input Capacitance
Pull-up Resistor
Pull-down Resistor
Short Circuit Current
3.3V Dynamic Supply Current
SYMBOL
V
DD
I
DD
V
IH
V
IL
I
IH
I
IL
V
OH
V
OL
F
IN
CONDITIONS
15pF Load, FOUT=16MHz
5pF Load, FOUT=200MHz
MIN.
2.97
TYP.
9
25
MAX.
3.63
UNITS
V
mA
mA
V
V
µA
µA
0.7* V
DD
0.3* V
DD
100
100
I
OH
=5mA, V
DD
=3.3V
I
OL
=6mA, V
DD
=3.3V
S3=0 or S3-S2=1-1
S3-S2-S1=1-0-1
S3-S2-S1=1-0-0
2.4
16
24
24
1
3
30
30
50
7
21
0.4
40
50
60
C
in1
R
pu
R
pd
I
sc
I
DD
MHz
MHz
MHz
ms
pF
kΩ
kΩ
mA
mA
mA
PIN 2, 3
PIN 4, 7
No Load, FOUT=16MHz
No Load, FOUT=200MHz
3. TIMING CHARACTERISTICS
PARAMETERS
Rise Time
SYMBOL
T
r
CONDITIONS
10%~90%VDD, 15pF Load, FOUT≤100MHz
10%~90%VDD, 10pF Load, FOUT≤150MHz
10%~90%VDD, 5pF Load, FOUT≤200MHz
90%~10%VDD, 15pF Load, FOUT≤100MHz
90%~10%VDD, 10pF Load, FOUT≤150MHz
90%~10%VDD, 5pF Load, FOUT≤200MHz
Measured at 50%VDD
Over output frequency range @ 3.3V
MIN.
TYP.
2
1.5
1
2
1.5
1
50
MAX.
3
2
1.5
3
2
1.5
55
100
UNITS
ns
ns
ns
ns
ns
ns
%
ps peak
Fall Time
Output Duty Cycle
Cycle to Cycle Jitter
T
f
D
T
T
cyc-cyc
45
47745 Fremont Blvd., Fremont, California 94538 Tel (510) 492-0990 Fax (510) 492-0991
www.phaselink.com
Rev 01/17/06 Page 3
PLL701-17
Low EMI Spread Spectrum Multiplier Clock
FUNCTIONAL DESCRIPTION
Selectable spread spectrum and modulation frequency and magnitude
The PLL701-17 provides selectable spread spectrum modulation frequency, as well as selectable modulation
magnitude. Selection is made by connecting pins 2 (S2), 3 (S1), 4 (S0), and 7 (S3) to a logical “zero” or “one”,
according to the output clock selection table on (page 1).
Default values for S(0:3) through internal pull-up and pull-down resistor
Selection pins 4 and 7 (S0 and S3) have an internal pull-down resistor of 30kΩ while pins 2 and 3 (S1 and S2)
have an internal pull-up resistor of 30kΩ. This internal pull-down (or pull-up) resistor will pull the input value to a
logical “zero” (or “one” respectively) by default, i.e. when no connection is made between the pin and VDD (GND
respectively). In order to override the internal pull-down (pull-up), the pin has to be connected to VDD (GND
respectively).
47745 Fremont Blvd., Fremont, California 94538 Tel (510) 492-0990 Fax (510) 492-0991
www.phaselink.com
Rev 01/17/06 Page 4
PLL701-17
Low EMI Spread Spectrum Multiplier Clock
PACKAGE INFORMATION
8 PIN Narrow SOIC ( mm )
SOIC
Symbol
A
A1
B
C
D
E
H
L
e
Min.
1.47
0.10
0.33
0.19
4.80
3.80
5.80
0.38
1.27 BSC
Max.
1.73
0.25
0.51
0.25
4.95
4.00
6.20
1.27
A1
B
C
L
e
E
H
D
A
ORDERING INFORMATION
For part ordering, please contact our Sales Department:
47745 Fremont Blvd., Fremont, CA 94538, USA
Tel: (510) 492-0990 Fax: (510) 492-0991
PART NUMBER
The order number for this device is a combination of the following:
Device number, Package type and Operating temperature range
PLL701-17 X X X-R
PART NUMBER
NONE= TUBE
R= TAPE AND REEL
NONE= NORMAL PACKAGE
L= GREEN PACKAGE
PACKAGE TYPE
S=SOIC
TEMPERATURE
C=COMMERCIAL
I=INDUSTRIAL
Order Number
PLL701-17SC
PLL701-17SC-R
PLL701-17SCL
PLL701-17SCL-R
Marking
P701-17SC
P701-17SC
P701-17SCL
P701-17SCL
Package Option
SOIC-Tube
SOIC-Tape and Reel
SOIC-Tube (GREEN)
SOIC-Tape and Reel (GREEN)
PhaseLink Corporation, reserves the right to make changes in its products or specifications, or both at any time without notice. The information
furnished by Phaselink is believed to be accurate and reliable. However, PhaseLink makes no guarantee or warranty concerning the accuracy of said
information and shall not be responsible for any loss or damage of whatever nature resulting from the use of, or reliance upon this product.
LIFE SUPPORT POLICY:
PhaseLink’s products are not authorized for use as critical components in life support devices or systems without the
express written approval of the President of PhaseLink Corporation.
47745 Fremont Blvd., Fremont, California 94538 Tel (510) 492-0990 Fax (510) 492-0991
www.phaselink.com
Rev 01/17/06 Page 5
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