LTC1264-7C

更新时间： 2024-11-10 22:34:31

品牌	Logo	应用领域
凌特 - Linear		/
页数	文件大小	规格书
12页	302K
描述
Linear Phase, Group Delay Equalized, 8th Order Lowpass Filter

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LTC1264-7C 数据手册

LTC1264-7

Linear Phase, Group Delay

Equalized, 8th Order

Lowpass Filter

DESCRIPTIO

EATURE

■

Steeper Roll-Off Than Bessel Filters

High Speed: f_C≤ 200kHz

Phase Equalized Filter in a 14-Pin Package

Phase and Group Delay Response Fully Tested

Transient Response Exhibits 5% Overshoot and

No Ringing

The LTC1264-7 is a clock-tunable monolithic 8th order

lowpass filter with linear passband phase and flat group

delay. The amplitude response approximates a maximally

flat passband and exhibits steeper roll-off than an equiva-

lent 8th order Bessel filter. For instance, at twice the cutoff

frequency the filter attains 28dB attenuation (vs 12dB for

Bessel), while at three times the cutoff frequency the filter

attains 55dB attenuation (vs 30dB for Bessel). The cutoff

frequencyoftheLTC1264-7istunedviaanexternalTTLor

CMOS clock.

■

65dB THD or Better Throughout a 100kHz Passband

No External Components Needed

O U

PPLICATI

■

The clock-to-cutoff frequency ratio of the LTC1264-7 can

be set to 25:1 (pin 10 to V⁺) or 50:1 (pin 10 to V^–).

Data Communication Filters

Time Delay Networks

Phase Matched Filters

When the filter operates at clock-to-cutoff frequency ratio

of 25:1, the input is double-sampled to lower the risk of

aliasing.

The LTC1264-7 is optimized for speed. Depending on the

operating conditions, cutoff frequencies between 200kHz

and250kHzcanbeobtained.(PleaserefertothePassband

vs Clock Frequency graphs.)

The LTC1264-7 is pin-compatible with the LTC1064-X

series.

TYPICAL APPLICATI

4-Level PAM Eye Diagram

200kHz Linear Phase Lowpass Filter

–8V

LTC1264-7

= 5MHz

CLK

OUT

1264-7 TA01

NOTE: THE POWER SUPPLIES SHOULD BE BYPASSED BY A

0.1µF CAPACITOR CLOSE TO THE PACKAGE AND ANY PRINTED

CIRCUIT BOARD ASSEMBLY SHOULD MAINTAIN A DISTANCE

OF AT LEAST 0.2 INCHES BETWEEN ANY OUTPUT OR INPUT

1264-7 TA02

500ns/DIV

PIN AND THE f

LINE.

f_CLK= 5MHz

CLK

_C= 200kHz

12 3 4 5 6 7...12

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与LTC1264-7C相关器件

型号	品牌	获取价格	描述	数据表
LTC1264-7CJ	Linear	获取价格	Linear Phase, Group Delay Equalized, 8th Order Lowpass Filter
LTC1264-7CJ#TR	Linear	获取价格	IC SWITCHED CAPACITOR FILTER, BESSEL, LOWPASS, CDIP14, 0.300 INCH, HERMETIC SEALED, CERAMI
LTC1264-7CJ#TRPBF	Linear	获取价格	IC SWITCHED CAPACITOR FILTER, BESSEL, LOWPASS, CDIP14, 0.300 INCH, LEAD FREE, HERMETIC SEA
LTC1264-7CN	Linear	获取价格	Linear Phase, Group Delay Equalized, 8th Order Lowpass Filter
LTC1264-7CN#PBF	Linear	获取价格	LTC1264-7 - Linear Phase, Group Delay Equalized, 8th Order Lowpass Filter; Package: PDIP;
LTC1264-7CN#TR	Linear	获取价格	IC SWITCHED CAPACITOR FILTER, BESSEL, LOWPASS, PDIP14, 0.300 INCH, PLASTIC, DIP-14, Active
LTC1264-7CS	Linear	获取价格	Linear Phase, Group Delay Equalized, 8th Order Lowpass Filter
LTC1264-7CSW	Linear	获取价格	Linear Phase, Group Delay Equalized, 8th Order Lowpass Filter
LTC1264-7CSW#TR	Linear	获取价格	LTC1264-7 - Linear Phase, Group Delay Equalized, 8th Order Lowpass Filter; Package: SO; Pi
LTC1264-7M	Linear	获取价格	Linear Phase, Group Delay Equalized, 8th Order Lowpass Filter

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