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

Automotive Temperature Range
Spread-Spectrum Econoscillator
PROGRAMMED f_OUT+
(1%, 2%, OR 4% OF f_OUT)
PROGRAMMED f_OUT
PROGRAMMED f_OUT-
(1%, 2%, OR 4% OF f_OUT)
IF DITHER AMOUNT = 0%
DITHER
AMOUNT
(±1%, ±2%,
OR ±4%)
1
DITHER FREQ
TIME
Figure 1A. Center Dithered
Power-Up
Upon the application of power, the DS1091L output is
held in the low state until t_PU has elapsed. This
removes any possibility of erroneous output transitions
during initial power-up.
DS1091L Frequency Spreading Profile as a
Function of Dither %
Application Information
Power-Supply Decoupling
To achieve best results, it is highly recommended that
decoupling capacitors are used on the IC power-supply
pins. Typical values of decoupling capacitors are 0.01µF
and 0.1µF. Use a high-quality, ceramic, surface-mount
capacitor, and mount it as close as possible to the V_CC
and GND pins of the IC to minimize lead inductance.
Requesting Custom Frequencies
Email [e-mail] for
information/questions concerning custom frequencies.
Chip Topology
TRANSISTOR COUNT: 4887
SUBSTRATE CONNECTED TO GROUND
Package Information
For the latest package outline information, go to
www.maxim-ic.com/DallasPackInfo.
PROGRAMMED f_OUT
PROGRAMMED f_OUT-
(2%, 4%, OR 8% OF f_OUT)
1
DITHER FREQ
IF DITHER AMOUNT = 0%
DITHER
AMOUNT
(-2%, -4%,
OR -8%)
TIME
Figure 1B. Down Dithered
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
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© 2006 Maxim Integrated Products
is a registered trademark of Maxim Integrated Products, Inc.
is a registered trademark of Dallas Semiconductor Corporation.
Springer