3.3V Spread-Spectrum EconOscillator

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Chip Topology

TRANSISTOR COUNT: 10000

SUBSTRATE CONNECTED TO GROUND

Typical Operating Circuits

Package Information

For the latest package outline information, go to

www.maxim-ic.com/DallasPackInfo

DS1087L

DITHERED 130kHz TO

66.6MHz OUTPUT

DECOUPLING CAPACITORS

(0.1

µF and 0.01µF)

SPRD

OUT

4.7k

Ω

4.7k

Ω

2-WIRE

INTERFACE

GND

SCL

SDA

PDN

OE

Processor-Controlled Mode

DS1087L

XTL1/OSC1

MICRO-

PROCESSOR

XTL2/OSC2

DITHERED 130kHz TO

66.6MHz OUTPUT

DECOUPLING CAPACITORS

(0.1

µF and 0.01µF)

*SDA AND SCL CAN BE CONNECTED DIRECTLY HIGH IF THE DS1087L NEVER NEEDS

TO BE PROGRAMMED IN-CIRCUIT, INCLUDING DURING PRODUCTION TESTING.

SPRD

OUT

GND

N.C.

SCL*

SDA*

PDN

OE

Stand-Alone Mode