Datasheet > DS1086

DS1086

更新时间： 2023-12-20 18:45:32

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
15页	194K
描述
扩频EconOscillator

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数据手册

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DS1086 数据手册

Spread-Spectrum EconOscillator

DS1086

Pin Description

NAME

OUT

FUNCTION

Oscillator Output

SPRD

Dither Enable. When the pin is high, the dither is enabled. When the pin is low, the dither is disabled.

Power Supply

Ground

GND

Output Enable. When the pin is high, the output buffer is enabled. When the pin is low, the output is

disabled but the master oscillator is still on.

Power-Down. When the pin is high, the master oscillator is enabled. When the pin is low, the master

oscillator is disabled (power-down mode).

PDN

SDA

SCL

2-Wire Serial Data. This pin is for serial data transfer to and from the device. The pin is open drain

and can be wire-OR’ed with other open-drain or open-collector interfaces.

2-Wire Serial Clock. This pin is used to clock data into the device on rising edges and clock data out

on falling edges.

MAXIMUM TEMPERATURE VARIATION

vs. MASTER FREQUENCY

CLOCK SPECTRUM COMPARISON

(9kHz BW, PEAK DETECT)

2.0

1.5

1.0

0.5

-5

CRYSTAL OSC

DS1086 NO DITHER

-10

-15

-20

-25

-30

-35

-40

DS1086 4% DITHER

-0.5

-1.0

-1.5

-2.0

66.00

82.75

99.50

116.25

133.00

FREQUENCY (MHz)

Figure 2. Temperature Variation Over Frequency

Figure 1. Clock Spectrum Dither Comparison

Processor-Controlled Mode

Stand-Alone Mode

DITHERED 260kHz TO

133MHz OUTPUT

MICRO-

PROCESSOR

4.7kΩ

SCL

4.7kΩ

SCL*

XTL1/OSC1

XTL2/OSC2

DITHERED 260kHz TO

133MHz OUTPUT

OUT

SPRD

SDA*

PDN

N.C.

DS1086

2-WIRE

INTERFACE

OUT

SDA

SPRD

GND

DS1086

PDN

DECOUPLING CAPACITORS

GND

(0.1µF and 0.01µF)

*SDA AND SCL CAN BE CONNECTED DIRECTLY HIGH IF THE DS1086 NEVER NEEDS

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

DECOUPLING CAPACITORS

(0.1µF and 0.01µF)

_______________________________________________________________________________________

1...4 5 678 9 10...15

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