LTC6909 datasheet(18/20 Pages) LINER

tên linh kiện	LTC6909

Giải thích chi tiết về linh kiện	1 to 8 Output, Multiphase Silicon Oscillator with Spread Spectrum Modulation

PDF	20 Pages

Scroll/Zoom	100%

nhà sản xuất	LINER [Linear Technology]

Trang chủ	http://www.linear.com

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18 / 20 page

LTC6909

6909f

TYPICAL APPLICATIONS

Combining Eight Outputs With a Lowpass Filter to Create a Sine Wave

Using Additional Standard Logic Inverters to Achieve 10- and 14-Phase Outputs

(Inverters Are 74HC04 or Equivalent)

14 OUTPUT PHASES (OUTPUTS SHIFTED BY 25.71 DEGREES)

V+

V+D

GND

V+A

SET

PH0

PH1

PH2

MOD

OUT1

OUT2

OUT3

OUT4

OUT5

OUT6

OUT7

OUT8

0° (360°)

180°

51.43°

231.43°

102.86°

282.86°

154.29°

334.29°

205.71°

25.71°

257.14°

77.14°

308.57°

128.57°

6909 TA03

LTC6909

10 OUTPUT PHASES (OUTPUTS SHIFTED BY 36 DEGREES)

V+

V+D

GND

V+A

SET

PH0

PH1

PH2

MOD

OUT1

OUT2

OUT3

OUT4

OUT5

OUT6

OUT7

OUT8

0° (360°)

180°

72°

252°

144°

324°

216°

36°

288°

108°

LTC6909

0.1μF

RSET

0.1μF

RSET

LTC6909

249k

2.7V TO 5.5V

0.1μF

116

0.1μF

100kHz

SINE WAVE

OUTPUT

787k

V+A

GND

PH0

PH1

OUT1

OUT2

OUT3

OUT4

SET

PH2

MOD

V+D

OUT8

OUT7

OUT6

OUT5

787k

402k

140k

80.6k

402k

140k

80.6k

LTC1563-2

INVA

LPA

AGND

V–

OPEN

16.2k

20k

21k

V+

LPB

INVB

6909 TA04

500mV/DIV

2μs/DIV

V+ = 5V

THD = 0.2%

6909 TA06

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