LTC1569-6是Linear Phase, DC Accurate, Low Power, 10th Order Lowpass Filter

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LTC1569-6 - 典型应用图例：

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LTC1569-6 - 封装图解：

LTC1569-6 - LTC1569-6是Linear Phase, DC Accurate, Low Power, 10th Order Lowpass Filter

LTC1569-6是Linear公司的一款低通滤波器产品，LTC1569-6是Linear Phase, DC Accurate, Low Power, 10th Order Lowpass Filter，本站介绍了LTC1569-6的封装应用图解、特点和优点、功能等，并给出了与LTC1569-6相关的凌力尔特元器件型号供参考。

LTC1569-6 - Linear Phase, DC Accurate, Low Power, 10th Order Lowpass Filter

LTC1569-6 - Linear Phase, DC Accurate, Low Power, 10th Order Lowpass Filter - Linear Technology（凌力尔特）

功能描述

The LTC1569-6 is a 10th order lowpass filter featuring linear phase and a root raised cosine amplitude response. The high selectivity of the LTC1569-6 combined with its linear phase in the passband makes it suitable for filtering both in data communications and data acquisition systems. Furthermore, its root raised cosine response offers the optimum pulse shaping for PAM data communications. The filter attenuation is 50dB at 1.5 • fCUTOFF, 60dB at 2 • fCUTOFF, and in excess of 80dB at 6 • fCUTOFF. DC-accuracy-sensitive applications benefit from the 5mV maximum DC offset.

The LTC1569-6 sampled data filter does not require an external clock yet its cutoff frequency can be set with a single external resistor with a typical accuracy of 3.5% or better. The external resistor programs an internal oscillator whose frequency is divided by either 1, 4 or 16 prior to being applied to the filter network. Pin 5 determines the divider setting. Thus, up to three cutoff frequencies can be obtained for each external resistor value. Using various resistor values and divider settings, the cutoff frequency can be programmed over a range of six octaves. Alternatively, the cutoff frequency can be set with an external clock and the clock-to-cutoff frequency ratio is 64:1. The ratio of the internal sampling rate to the filter cutoff frequency is 128:1.

The LTC1569-6 is fully tested for a cutoff frequency of 64kHz with a single 3V supply.

The LTC1569-6 features power saving modes and it is available in an SO-8 surface mount package.

特点

One External R Sets Cutoff Frequency

Root Raised Cosine Response

3mA Supply Current with a Single 3V Supply

Up to 64kHz Cutoff on a Single 3V Supply

10th Order, Linear Phase Filter in an SO-8

DC Accurate, VOS(MAX) = 5mV

Low Power Modes

Differential or Single-Ended Inputs

80dB CMRR (DC)

82dB Signal-to-Noise Ratio, VS = 5V

Operates from 3V to ±5V Supplies

应用

Data Communication Filters for 3V Operation

Linear Phase and Phase Matched Filters for I/Q Signal Processing

Pin Programmable Cutoff Frequency Lowpass 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)
LTC1569CS8-6	SO-8	C	$6.55	$5.50
LTC1569CS8-6#PBF	SO-8	C	$6.55	$5.50
LTC1569CS8-6#TR	SO-8	C		$5.56
LTC1569CS8-6#TRPBF	SO-8	C		$5.56
LTC1569IS8-6	SO-8	I	$7.20	$6.05
LTC1569IS8-6#PBF	SO-8	I	$7.20	$6.05
LTC1569IS8-6#TR	SO-8	I		$6.11
LTC1569IS8-6#TRPBF	SO-8	I		$6.11