LTC1264-7 - LTC1264-7是Linear Phase, Group Delay Equalized, 8th Order Lowpass Filter

LTC1264-7是LINEAR凌力尔特公司的一款低通滤波器产品，LTC1264-7是LTC1264-7是Linear Phase, Group Delay Equalized, 8th Order Lowpass Filter，本站介绍了LTC1264-7的封装应用图解、特点和优点、功能等，并给出了与LTC1264-7相关的LINEAR元器件型号供参考。

LTC1264-7 - LTC1264-7是Linear Phase, Group Delay Equalized, 8th Order Lowpass Filter - 低通滤波器 - 信号调理 - 凌力尔特

LTC1264-7 - Linear Phase, Group Delay Equalized, 8th Order Lowpass Filter

LTC1264-7 - Linear Phase, Group Delay Equalized, 8th Order Lowpass Filter - Linear Technology（凌力尔特）

功能描述

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 equivalent 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 frequency of the LTC1264-7 is tuned via an external TTL or CMOS clock. 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). 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 and 250kHz can be obtained. (Please refer to the Passband vs Clock Frequency graphs.)

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

特点

Steeper Roll-Off Than Bessel Filters

High Speed: fC </= 200kHz

Phase Equalized Filter in a 14-Pin Package

Phase and Group Delay Response Fully Tested

Transient Response Exhibits 5% Overshoot and No Ringing

65dB THD or Better Throughout a 100kHz Passband

No External Components Needed

Available in Plastic 14-Pin DIP and 16-Pin SO Wide Packages

应用

Data Communication Filters

Time Delay Networks

Phase Matched Filters

以下列出了不同封装及包装形式的具体型号,并标出了直接在linear官网上订货的价格（美元）

器件型号	封装	温度	价格 (以 1 ~ 99 片为批量)	价格 (以 1000 片为批量)
LTC1264-7CN	N-14	C	$16.65	$13.70
LTC1264-7CN#PBF	N-14	C	$16.65	$13.70
LTC1264-7CSW	SW-16	C	$20.85	$16.90
LTC1264-7CSW#PBF	SW-16	C	$20.85	$16.90
LTC1264-7CSW#TR	SW-16	C		$16.96
LTC1264-7CSW#TRPBF	SW-16	C		$16.96

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