DS1091L Datasheet, PDF (1/6 Pages) Maxim Integrated Products – Automotive Temperature Range Spread-Spectrum Econoscillator

Rev 0; 9/06
Automotive Temperature Range
Spread-Spectrum Econoscillator
General Description
The DS1091L is a low-cost clock generator that is factory-
trimmed to output frequencies from 130kHz to 66.6MHz
with a nominal accuracy of ±0.25%. The device can also
produce a center- or down-dithered spread-spectrum
output with pin-selectable dither magnitude and rate.
Assembled in an 8-pin µMAX package, the DS1091L is
designed to operate with a 3.0V to 3.6V power supply
over the automotive temperature range (-40°C to
+125°C).
Automotive Infotainment
POS Terminals
LCD Displays
Printers
Industrial Control
Applications
Features
♦ Spread-Spectrum Clock Output from 130kHz to
66.6MHz
♦ Operating Temperature Range of -40°C to +125°C
♦ Accuracy of ±1.75% Across Temperature and
Voltage
♦ Factory Trimmed
♦ Center-Dithered (DS1091LA) or Down-Dithered
(DS1091LB) Spread-Spectrum Output
♦ Pin-Selectable Center-Dither Magnitude of 0%,
±1%, ±2%, or ±4%
♦ Pin-Selectable Down-Dither Magnitude of 0%, -2%,
-4%, or -8%
♦ Pin-Selectable Dither Rate
♦ 3.0V to 3.6V Supply Operation
♦ Lead-Free 8-Pin µMAX Package
Ordering Information
PART
TEMP RANGE
PIN-PACKAGE SPREAD SPECTRUM OUTPUT FREQUENCY (MHz)
DS1091LUA+027
-40°C to +125°C
8 µMAX
Center
27.0
DS1091LUA+033
-40°C to +125°C
8 µMAX
Center
33.3
DS1091LUA+066
-40°C to +125°C
8 µMAX
Center
66.6
DS1091LUA+xxx
-40°C to +125°C
8 µMAX
Center
Custom (Contact Factory)
DS1091LUB+027
-40°C to +125°C
8 µMAX
Down
27.0
DS1091LUB+033
-40°C to +125°C
8 µMAX
Down
33.3
DS1091LUB+066
-40°C to +125°C
8 µMAX
Down
66.6
DS1091LUB+xxx
-40°C to +125°C
8 µMAX
Down
Custom (Contact Factory)
+Denotes lead-free package.
xxx Denotes factory-programmed custom frequencies.
Email [e-mail] for information/questions concerning custom frequencies.
Typical Operating Circuit
Pin Configuration
f_OUT
V_CC
DECOUPLING
CAPACITORS
OUT ₁
V_{CC 2}
GND
3
SEL1 ₄
DS1091L
V_CC
DR
8
N.C.
7
6 ^{N.C. V}CC
5 ^SEL0
TOP VIEW
OUT 1
V_CC 2
GND 3
SEL1 4
DS1091L
µ_μMAX
8 DR
7 N.C.
6 N.C.
5 SEL0
8⁸ µ^μMA^XX
______________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.