DS1080CL Datasheet, PDF (1/8 Pages) Maxim Integrated Products – Spread-Spectrum Crystal Multiplier

19-6068; Rev 1; 10/11
Spread-Spectrum Crystal Multiplier
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.
Automotive
Cable Modems
Cell Phones
Computer Peripherals
Applications
Copiers
Infotainment
PCs
Printers
Pin Configuration
TOP VIEW
+
X1 1
GND 2
CMSEL 3
DS1080CL
SMSEL 4
8 X2
7 V_CC
6 SSO
5 PDN
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
Ordering Information
PART
TEMP RANGE
DS1080CLU+
-40°C to +125°C
DS1080CLU+T
-40°C to +125°C
DS1080CLU/V+
-40°C to +125°C
DS1080CLU/V+T -40°C to +125°C
+Denotes a lead-free package.
/V denotes an automotive qualified part.
T = Tape and reel.
PIN-PACKAGE
8 μSOP
8 μSOP
8 μSOP
8 μSOP
Typical Operating Circuit
CRYSTAL
C_L1
C_L2
X1
1
GND
2
CMSEL
3
SMSEL
4
DS1080CL
X2
8
7 ^VCC
SSO
6
PDN
5
V_CC
DECOUPLING
CAPACITOR
f_SSO
V_CC
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%.
________________________________________________________________ Maxim Integrated Products 1
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.