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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^ S0v 1 8 VDD S3v FOUT GND
PLL701-17
2 3 4
7 6 5
FIN = 16 ~ 60 Mhz
Note: v: 30k Internal Pull down. ^: 30k 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
VDD VI VO TS TA TJ
MIN.
-0.5 -0.5 -65 -40
MAX.
4.6 VDD+0.5 VDD+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 FIN Input Capacitance Pull-up Resistor Pull-down Resistor Short Circuit Current 3.3V Dynamic Supply Current
SYMBOL
VDD IDD VIH VIL IIH IIL VOH VOL FIN
CONDITIONS
15pF Load, FOUT=16MHz 5pF Load, FOUT=200MHz
MIN.
2.97
TYP.
9 25
MAX.
3.63
UNITS
V mA mA V V A A
0.7* VDD 0.3* VDD 100 100 IOH=5mA, VDD =3.3V IOL=6mA, VDD =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
Cin1 Rpu Rpd Isc IDD
MHz MHz MHz ms pF k k mA mA mA
PIN 2, 3 PIN 4, 7 No Load, FOUT=16MHz No Load, FOUT=200MHz
3. TIMING CHARACTERISTICS PARAMETERS
Rise Time
SYMBOL
Tr
CONDITIONS
10%~90%VDD, 15pF Load, FOUT100MHz 10%~90%VDD, 10pF Load, FOUT150MHz 10%~90%VDD, 5pF Load, FOUT200MHz 90%~10%VDD, 15pF Load, FOUT100MHz 90%~10%VDD, 10pF Load, FOUT150MHz 90%~10%VDD, 5pF Load, FOUT200MHz 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
Tf DT Tcyc-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 30k while pins 2 and 3 (S1 and S2) have an internal pull-up resistor of 30k. 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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