LTC6953 datasheet(56/56 Pages) AD

56 / 56 page

LTC6953

Rev 0

For more information www.analog.com

Preliminary Technical Data

Advance Product Information Subject to Change

Rev PrA

D16969-0-5/18(PrA)

www.analog.com

RELATED PARTS

TYPICAL APPLICATION

PART NUMBER

DESCRIPTION

COMMENTS

LTC6952

Ultralow Jitter, 4.5GHz PLL with 11 Outputs and

JESD204B Support

Eleven Independent CML Outputs with Dividers and Delays, 65fs

Additive ADC SNR Jitter

LTC6955/LTC6955-1

Ultralow Jitter, 7.5GHz, 11-Output Fanout Buffer Family

Eleven CML Outputs, 45fs Additive ADC SNR Jitter

LTC6945/LTC6946

Ultralow Noise and Spurious Integer-N Synthesizers

370MHz to 6.39GHz, –226dBc/Hz Normalized In-Band Phase Noise

Floor, –157dBc/Hz Wideband Output Phase Noise Floor

LTC6947/LTC6948

Ultralow Noise and Spurious Frac-N Synthesizers

350MHz to 6.39GHz, –226dBc/Hz Normalized In-Band Phase Noise

Floor, –157dBc/Hz Wideband Output Phase Noise Floor

LTC6950

1.4GHz Low Phase Noise, Low Jitter PLL with

Clock Distribution

Four Independent LVPECL Outputs with 18fsRMS Additive Jitter

(12kHz to 20MHz)

LTC6951

Ultralow Jitter Multioutput Clock Synthesizer with

Integrated VCO

Four Independent CML Outputs and One LVDS Output, Integrated

VCO, 110fs ADC SNR Jitter

LTC6954

Low Phase Noise, Triple Output Clock Distribution

Divider/Driver

LVPECL, LVDS and CMOS Outputs with < 20fsRMS Additive Jitter

(12kHz to 20MHz)

EZSync Multichip Synchronization with Request Pass-Through

160Ω

100Ω

49.9Ω

1µF

100Ω

1µF

33nF

22nF

48.7Ω

1.2µF

48.7Ω

0.1µF

75Ω

30Ω

0.1µF

0.47µF

OUT0+

OUT0–

OUT1+

OUT1–

OUT2+

OUT2–

OUT10+

OUT10–

OUT3+

OUT3–

OUT4+

OUT4–

OUT5+

OUT5–

OUT6+

OUT6–

OUT7+

OUT7–

OUT8+

OUT8–

OUT9+

OUT9–

LTC6952

REF+

REF –

EZS_SRQ+

EZS_SRQ–

TO DAUGHTER

CARD #2

STAGE 1

STAGE 2

OUT0+

OUT0–

OUT1+

OUT1–

OUT2+

OUT2–

OUT10+

OUT10–

OUT3+

OUT3–

OUT4+

OUT4–

OUT5+

OUT5–

OUT6+

OUT6–

OUT7+

OUT7–

OUT8+

OUT8–

OUT9+

OUT9–

LTC6953

12.5MHz SYSREF

500MHz CLOCK

4GHz CLOCK

125MHz CLOCK

100MHz CLOCK

DAUGHTER CARD #1

DAUGHTER CARD #2

DAUGHTER CARD #3

DAUGHTER CARD #4

DAUGHTER CARD #5

4GHz CLK

SSRQ PASS-THRU

TO DAUGHTER

CARD #3

TO DAUGHTER

CARD #4

TO DAUGHTER

CARD #5

IN+

IN–

EZS_SRQ+

EZS_SRQ–

6953 TAO2a

CRYSTEK

CCHD-575-25-100

100MHZ REF OSC

CRYSTEK

CVCO55CC-

4000-4000

VCO+

VCO–

VTUNE

LTC6952 and LTC6953 EZSync

Cascaded Phase Noise

RMS JITTER = 100fs

EQUIVALENT ADC SNR METHOD

4GHz

500MHz

OFFSET FREQUENCY (Hz)

10k

100k

10M 40M

–170

–160

–150

–140

–130

–120

–110

–100

6953 TA02b

LTC6953 数据表(PDF) 56 Page - Analog Devices

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