Datasheet > LTC1264_05

LTC1264_05

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
凌特 - Linear		/
页数	文件大小	规格书
16页	227K
描述
High Speed, Quad Universal Filter Building Block

阅读下载

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

LTC1264_05 数据手册

LTC1264

High Speed, Quad Universal

Filter Building Block

FEATURES

DESCRIPTIO

High Speed, Up to 250kHz Center Frequency

The LTC^®1264 consists of four identical, high speed 2nd

order switched-capacitor filter building blocks designed

for center frequencies up to 250kHz. Each building block,

together with three to five resistors, can provide 2nd order

functions like lowpass, highpass, bandpass and notch.

Thecenterfrequencyofeach2ndordersectionistunedvia

an external clock. The clock-to-center frequency ratio is

internally set to 20:1, but it can be modified via external

resistors.

■

Four Identical Filters in a 0.3" Wide Package

■

Clock-to-Center Frequency Ratio of 20:1

Double-Sampling, Improved Aliasing

Operates from ±2.37V to ±8V Power Supplies

Customized Version with Internal Resistors Available

Low Noise

Low Harmonic Distortion

Available in 24-Pin DIP and SO Wide Packages

■

The aliasing performance of the LTC1264 is improved by

double-sampling each 2nd order section. Input signal

frequencies can reach up to twice the clock frequency

before any alias products will be detectable.

APPLICATIO S

■

Digital Communications

■

Spread Spectrum Communications

■

Spectral Analysis

For Q ≤ 5 and for T_A< 85°C, the maximum center

frequency is 160kHz. For Q ≤ 2, the maximum center

frequency is 250kHz. Up to 8th order filters can be realized

by cascading all four 2nd order sections.

■

Loran Receivers

Instrumentation

■

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

All other trademarks are the property of their respective owners.

A customized monolithic version of the LTC1264 includ-

ing internal thin film resistors can be obtained.

TYPICAL APPLICATIO

Clock-Tunable 8th Order Bandpass Filter, f

= f /20

CLK

CENTER

50k

Gain vs Frequency

50k

100kHz Bandpass, f

Bandwidth = f

/10

–3dB

CENTER

INV B

HPB/NB

BPB

INV C

HPC/NC

BPC

10k

50k

10k

50k

MAXIMUM POWER

CENTER

LPB

LPC

–10

–20

–30

–40

–50

–60

–70

SUPPLY

160kHz

120kHz

60kHz

±7.5V

±5V

Single 5V

LTC1264

–

AGND

0.1µF

CLK

0.1µF

LPA

LPD

OUT

50k

10k

BPA

BPD

50k

10k

HPA/NA

INV A

HPD/ND

INV D

–80

10k

100k

FREQUENCY (Hz)

1264 TA02

50k

1264 TA01

1264fb

12 3 4 5 6 7...16

下载PDF

与LTC1264_05相关器件

型号	品牌	描述	获取价格	数据表
LTC1264-7	Linear	Linear Phase, Group Delay Equalized, 8th Order Lowpass Filter	获取价格
LTC1264-7	ADI	线性相位、群延迟均衡的 8 阶低通滤波器	获取价格
LTC1264-7_1	Linear	Linear Phase, Group Delay Equalized, 8th Order Lowpass Filter	获取价格
LTC1264-7C	Linear	Linear Phase, Group Delay Equalized, 8th Order Lowpass Filter	获取价格
LTC1264-7CJ	Linear	Linear Phase, Group Delay Equalized, 8th Order Lowpass Filter	获取价格
LTC1264-7CJ#TR	Linear	IC SWITCHED CAPACITOR FILTER, BESSEL, LOWPASS, CDIP14, 0.300 INCH, HERMETIC SEALED, CERAMI	获取价格