LTC1069-1IS8 Datasheet

IC型號：
LTC1069-1IS8
PDF描述：
Low Power, 8th Order Progressive Elliptic, Lowpass Filter
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242.62KB
PDF頁數(shù)：
8頁
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LTC1069-1

Low Power, 8th Order

Progressive Elliptic,

Lowpass Filter

FEATURES

8th Order Elliptic Filter in SO-8 Package

Operates from Single 3.3V to

鹵5V

Power Supplies

鈥?20dB at 1.2 f

CUTOFF

鈥?52dB at 1.4 f

CUTOFF

鈥?70dB at 2 f

CUTOFF

Wide Dynamic Range

110碌V

RMS

Wideband Noise

3.8mA Supply Current with

鹵5V

Supplies

2.5mA Supply Current with Single 5V Supply

2mA Supply Current with Single 3.3V Supply

The cutoff frequency (f

CUTOFF

) of the LTC1069-1 is equal

to the clock frequency divided by 100. The gain at f

CUTOFF

is 鈥?0.7dB and the typical passband ripple is

鹵0.15dB

up to 0.9 f

CUTOFF

. The stopband attenuation of the

LTC1069-1 features a progressive elliptic response

reaching 20dB attenuation at 1.2 f

CUTOFF

, 52dB attenua-

tion at 1.4f

CUTOFF

and 70dB attenuation at 2f

CUTOFF

With

鹵5V

supplies, the LTC1069-1 cutoff frequency can

be clock-tuned up to 12kHz; with a single 5V supply, the

maximum cutoff frequency is 8kHz.

The low power feature of the LTC1069-1 does not penal-

ize the device鈥檚 dynamic range. With

鹵5V

supplies and an

input range of 0.3V

RMS

to 2.5V

RMS

, the signal-to-(noise

+ THD) ratio is

鈮?/div>

70dB. The wideband noise of the

LTC1069-1 is 110碌V

RMS

Other filter responses with

lower power or higher speed can be obtained. Please

contact LTC marketing for details.

The LTC1069-1 is available in 8-pin PDIP and 8-pin SO

packages.

, LTC and LT are registered trademarks of Linear Technology Corporation.

APPLICATI

Telecommunication Filters

Antialiasing Filters

DESCRIPTIO

The LTC

廬

1069-1 is a monolithic 8th order lowpass filter

featuring clock-tunable cutoff frequency and 2.5mA power

supply current with a single 5V supply. An additional

feature of the LTC1069-1 is operation with a single 3.3V

supply.

TYPICAL APPLICATI

Single 3.3V Supply 3kHz Elliptic Lowpass Filter

0.47碌F

3.3V

0.1碌F

AGND

OUT

鈥?/div>

LTC1069-1

CLK

300kHz

1069-1 TA01

GAIN (dB)

Frequency Response

鈥?0

1.5

4.5

FREQUENCY (kHz)

7.5

1069-1 TA02

數(shù)據(jù)列表
LTC1069-1
標準包裝
100
類別
集成電路 (IC)
家庭
接口 - 濾波器 - 有源
系列
-
濾波器類型
橢圓，低通開關(guān)電容器
頻率 - 截止或中心
12kHz
濾波器數(shù)
1
濾波器階數(shù)
8th
電源電壓
±1.57 V ~ 5.5 V
安裝類型
表面貼裝
封裝/外殼
8-SOIC（0.154"，3.90mm 寬）
供應(yīng)商設(shè)備封裝
8-SOIC
包裝
管件

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