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DS1080CLU+T

P1-P3P4-P6P7-P8
DS1080CL
Spread-Spectrum Crystal Multiplier
________________________________________________________________
Maxim Integrated Products
1
19-6068; Rev 1; 10/11
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
General Description
The DS1080CL is a low-jitter, crystal-based clock gen-
erator with an integrated phase-locked loop (PLL) to
generate spread-spectrum clock outputs from 8MHz to
64MHz. The device is pin programmable to select the
clock multiplier rate as well as the dither magnitude.
The DS1080CL has a spread-spectrum disable mode
and a power-down mode to conserve power.
Applications
Features
♦ Generates Spread-Spectrum Clocks from 8MHz to
64MHz
♦ Selectable Clock Multiplier Rates of 1x, 2x, and 4x
♦ Center Spread-Spectrum Dithering
♦ Selectable Spread-Spectrum Modulation
Magnitudes of ±0.5%, ±1.0%, and ±1.5%
♦ Spread-Spectrum Disable Mode
♦ Low Cycle-to-Cycle Jitter
♦ Power-Down Mode with High-Impedance Output
♦ Low-Power Consumption
♦ 3.0V to 3.6V Single-Supply Operation
♦ -40°C to +125°C Temperature Operation
♦ Small 8-Pin µSOP Package
SSO
PDNSMSEL
1
2
8
7
X2
V
CC
GND
CMSEL
X1
TOP VIEW
3
4
6
5
DS1080CL
+
Pin Configuration
+
Denotes a lead-free package.
/V denotes an automotive qualified part.
T = Tape and reel.
Ordering Information
PART TEMP RANGE PIN-PACKAGE
DS1080CLU+ -40°C to +125°C 8 μSOP
DS1080CLU+T -40°C to +125°C 8 μSOP
DS1080CLU/V+ -40°C to +125°C 8 μSOP
DS1080CLU/V+T -40°C to +125°C 8 μSOP
Automotive
Cable Modems
Cell Phones
Computer Peripherals
Copiers
Infotainment
PCs
Printers
X2
NOTE: IN THE ABOVE CONFIGURATION WITH PDN CONNECTED TO V
CC
, SMSEL CONNECTED TO GND, AND CMSEL OPEN, THE DEVICE IS IN NORMAL
OPERATION WITH 2x CLOCK MULTIPLICATION AND A SPREAD-SPECTRUM MAGNITUDE OF ±0.5%.
f
SSO
V
CC
V
CC
V
CC
SSO
PDN
X1
CRYSTAL
C
L1
C
L2
DECOUPLING
CAPACITOR
GND
CMSEL
SMSEL
8
7
6
5
1
2
3
4
DS1080CL
Typical Operating Circuit
DS1080CL
Spread-Spectrum Crystal Multiplier
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
RECOMMENDED OPERATING CONDITIONS
(T
A
= -40°C to +125°C, unless otherwise noted.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Voltage Range on V
CC
Relative to GND .............-0.5V to +3.63V
Voltage Range on Any Pin Relative
to GND ...............-0.5V to (V
CC
+ 0.5V), not to exceed +3.63V
Continuous Power Dissipation (T
A
= +75°C)
µSOP (derate 4.5mW/°C above +70°C).......................362mW
Operating Temperature Range .........................-40°C to +125°C
Storage Temperature Range .............................-55°C to +125°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) .......................................+260°C
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Supply Voltage V
CC
(Note 1) 3.0 3.6 V
Input Logic 1 V
IH
0.8 x
V
CC
V
CC
+
0.3
V
Input Logic 0 V
IL
V
GND
-
0.3
0.2 x
V
CC
V
Input Logic Open I
IF
0V < V
IN
< V
CC
(Note 2) ±1 μA
Input Leakage I
IL
0V < V
IN
< V
CC
(Note 3) ±80 μA
SSO Load C
SSO
15 pF
Crystal or Clock Input
Frequency
f
IN
8 16 MHz
Crystal ESR X
ESR
90
Clock Input Duty Cycle F
INDC
40 60 %
Crystal Parallel Load
Capacitance
C
L
(Note 4) 18 pF
DC ELECTRICAL CHARACTERISTICS
(V
CC
= +3.0V to +3.6V, T
A
= -40°C to +125°C, unless otherwise noted.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Supply Current I
CC1
C
SSO
= 15pF, f
SSO
= 8MHz 7 12 mA
Power-Down Current I
CCQ
PDN = GND, all input pins open 200 μA
Output Leakage (SSO) I
OZ
PDN = GND -1 +1 μA
Low-Level Output Voltage
(SSO)
V
OL
I
OL
= 4mA 0.4 V
High-Level Output Voltage
(SSO)
V
OH
I
OH
= -4mA 2.4 V
Input Capacitance (X1/X2) C
IN
(Note 5) 5 pF
DS1080CL
Spread-Spectrum Crystal Multiplier
_______________________________________________________________________________________ 3
AC ELECTRICAL CHARACTERISTICS
(V
CC
= +3.0 to +3.6V, T
A
= -40°C to +125°C, unless otherwise noted.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
SSO Duty Cycle SSODC Measured at V
CC
/2 45 55 %
Rise Time t
R
(Note 6) 1.6 ns
Fall Time t
F
(Note 6) 1.6 ns
Peak Cycle-to-Cycle Jitter t
J
f
SSO
= 8MHz, T
A
= -40°C to +85°C,
10,000 cycles (Note 5)
75 ps
8MHz 20
Power-Up Time t
POR
PDN pin (Note 7)
16MHz 10
ms
Power-Down Time t
PDN
PDN pin (Notes 8, 9) 100 ns
Dither Rate f
DITHER
f
IN
/512
Note 1: All voltages referenced to ground.
Note 2: Maximum source/sink current applied to input to be considered an open.
Note 3: Applicable to pins CMSEL, SMSEL, and PDN.
Note 4: See information about C
L1
and C
L2
in the
Applications Information
section.
Note 5: Not production tested.
Note 6: For 15pF load.
Note 7: Time between PDN deasserted to output active.
Note 8: Time between PDN asserted to output high impedance.
Note 9: Guaranteed by design.
P1-P3P4-P6P7-P8

DS1080CLU+T

Mfr. #:
Buy DS1080CLU+T
Manufacturer:
Maxim Integrated
Description:
Clock Generators & Support Products Spread-Spectrum Crystal Multiplier
Lifecycle:
New from this manufacturer.
Delivery:
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