Datasheet > LTC6945

LTC6945

更新时间： 2024-09-27 12:00:39

品牌	Logo	应用领域
凌特 - Linear		驱动器转换器
页数	文件大小	规格书
36页	1390K
描述
Low Phase Noise, Dual Output Buffer/Driver/Logic Converter

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中文翻译

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数据手册

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LTC6945 数据手册

LTC6957-1/LTC6957-2/

LTC6957-3/LTC6957-4

Low Phase Noise, Dual

Output Buffer/Driver/

Logic Converter

FeaTures

DescripTion

Low Phase Noise Buffer/Driver

The LTC^®6957-1/LTC6957-2/LTC6957-3/LTC6957-4 is

a family of very low phase noise, dual output AC signal

buffer/driver/logic level translators. The input signal can

Optimized Conversion of Sine Wave Signals to

Logic Levels

be a sine wave or any logic level (≤2V ). There are four

Three Logic Output Types Available

P-P

members of the family that differ in their output logic

signal type as follows:

– LVPECL

– LVDS

– CMOS

Additive Jitter 45fs

LTC6957-1: LVPECL Logic Outputs

(LTC6957-1)

RMS

LTC6957-2: LVDS Logic Outputs

Frequency Range Up to 300MHz

3.15V to 3.45V Supply Operation

Low Skew 3ps Typical

Fully Specified from –40°C to 125°C

12-Lead MSOP and 3mm × 3mm DFN Packages

LTC6957-3: CMOS Logic, In-Phase Outputs

LTC6957-4: CMOS Logic, Complementary Outputs

The LTC6957 will buffer and distribute any logic signal

with minimal additive noise, however, the part really ex-

cels at translating sine wave signals to logic levels. The

early amplifier stages have selectable lowpass filtering

to minimize the noise while still amplifying the signal to

increaseitsslewrate. Thisinputstagefiltering/noiselimit-

ing is especially helpful in delivering the lowest possible

phase noise signal with slow slewing input signals such

as a typical 10MHz sine wave system reference.

applicaTions

System Reference Frequency Distribution

High Speed ADC, DAC, DDS Clock Driver

Military and Secure Radio

Low Noise Timing Trigger

Broadband Wireless Transceiver

High Speed Data Acquisition

Medical Imaging

Test and Measurement

L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear

Technology Corporation. All other trademarks are the property of their respective owners.

Protected by U.S. Patents 7969189 and 8319551.

Typical applicaTion

3.3V

0.1µF

Additive Phase Noise at 100MHz

–140

SINGLE-ENDED SINE WAVE INPUT

AT +7dBm (500mV

)

RMS

SD1

FILTA = FILTB = GND

FILTA

–145

–150

–155

–160

–165

FILTB

TO PLL CHIPS

OR SYSTEM

SAMPLING CLOCKS

OUT1

100MHz

LTC6957-2 (LVDS)

LTC6957-4 (CMOS)

+7dBm

10nF

–

SINE WAVE

OCXO

50Ω

10nF

OUT2

LTC6957-3

(CMOS)

GND

SD2

LTC6957-1 (LVPECL)

1k 10k

OFFSET FREQUENCY (Hz)

6957 TA01a

100

100k

69571234 TA01b

6957f

For more information www.linear.com/LTC6957-1

12 3 4 5 6 7...36

中文翻译

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与LTC6945相关器件

型号	品牌	获取价格	描述	数据表
LTC6946-1	Linear	获取价格	30MHz to 1.4GHz IQ Demodulator
LTC6946-2	Linear	获取价格	30MHz to 1.4GHz IQ Demodulator
LTC6946-3	Linear	获取价格	30MHz to 1.4GHz IQ Demodulator
LTC6946IUFD-3#PBF	Linear	获取价格	LTC6946 - Ultralow Noise and Spurious 0.37GHz to 6.39GHz Integer-N Synthesizer with Integr
LTC6946-x	Linear	获取价格	16-Bit, 20Msps Low Noise Dual ADC
LTC6947	ADI	获取价格	超低噪声 0.35GHz 至 6GHz 分数 N 合成器
LTC694C	Linear	获取价格	Microprocessor Supervisory Circuits
LTC694C-3.3	Linear	获取价格	3.3V Microprocessor Supervisory Circuits
LTC694CJ8	Linear	获取价格	IC 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, CDIP8, 0.300 INCH, HERMETIC SEALED, CERDIP-8, Po
LTC694CN-3.3	Linear	获取价格	IC 2-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDIP8, PLASTIC, DIP-8, Power Management Circuit

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