12

LTC6907

6907fa

TYPICAL APPLICATIO S

Linear Technology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

©LINEAR TECHNOLOGY CORPORATION 2005

LT 0506 REV A • PRINTED IN USA

PART NUMBER

DESCRIPTION

COMMENTS

LTC1799

1kHz to 33MHz ThinSOT Oscillator, Resistor Set

Wide Frequency Range

LTC6900

1kHz to 20MHz ThinSOT Oscillator, Resistor Set

Low Power, Wide Frequency Range

LTC6902

Multiphase Oscillator with Spread Spectrum Modulation

2-, 3- or 4-Phase Outputs

LTC6903/LTC6904

1kHz to 68MHz Serial Port Programmable Oscillator

LTC6905

17MHz to 170MHz ThinSOT Oscillator, Resistor Set

High Frequency, 100

µsec Startup, 7ps RMS Jitter

LTC6905-XXX

Fixed Frequency ThinSOT Oscillator Family, up to 133MHz

No Trim Components Required

LTC6906

Micropower 10kHz to 1MHz ThinSOT Oscillator, Resistor Set

12

µA Supply Current of 100kHz, 0.65% Frequency Accuracy

RELATED PARTS

0.1

µF

1MHz

1k

6907 TA05

200k

L1

100

µH

3V TO 3.6V

C1

220pF

0.1

µF

GND

DIV

OUT

GRD

SET

LTC6907

Sine Wave Oscillator

2MHz WITH

±2.5% RANGE

6907 TA04

97.6k

5k

3V TO 3.6V

0.1

µF

GND

DIV

OUT

GRD

SET

LTC6907

Trimming the Frequency

6907 TA03

1% THIN FILM

50k TO 500k

0.1% THIN FILM

40kHz TO 4MHz

3V TO 3.6V

0.1

µF

÷1

÷3

÷10

GND

DIV

OUT

GRD

SET

LTC6907

Setting Frequency to 0.1%

Resolution with Standard Resistors

1

2

16

10

7

8

9

15

3

4

5

6

11

12

13

14

CLOCK A

ENABLE A

ENABLE B

RESET A

CLOCK B

RESET B

Q1A

Q2A

Q3A

Q4A

Q1B

Q2B

Q3B

Q4B

74HC4520

÷2

÷4

÷8

÷16

÷32

÷64

÷128

÷256

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

NC

SA

LPA

BPA

HPA/NA

INV A

CLK

AGND

SB

LPB

BPB

HPB/NB

INV B

LTC1067-50

3V

C2

0.1

µF

C3

0.1

µF

C4

1

µF

R61

10k

R51 5.11k

R31 51.1k

R21 20k

CLOCK-TUNABLE LOWPASS FILTER WITH

A STOPBAND NOTCH AT THE 3rd HARMONIC

3V

R62 14k

R52

5.11k

R32 51.1k

R22 20k

SINEWAVE

OUT

6907 TA06

R11

100k

64

64

3V

56.2k

499k

0V–0.6V

1

µF

GND

GRD

LTC6907

SET

OUT

1

2

3

5

4

DIV

64