Datasheet > LTC1064-7

LTC1064-7

更新时间： 2023-12-20 18:44:51

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
16页	217K
描述
线性相位、8 阶低通滤波器

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LTC1064-7 数据手册

LTC1064-7

ELECTRICAL CHARACTERISTICS

Note 1: Absolute Maximum Ratings are those values beyond which the life

of a device may be impaired.

Note 3: Group delay and group delay deviation are calculated from the

measured phase factor and phase deviation specifications.

Note 2: Input frequencies, f, are linearly phase shifted through the filter as

Note 4: Phase deviation and group delay deviation for LTC1064-7MJ is

±4%.

long as f ≤ f ; f = cutoff frequency.

Figure 1 curve shows the typical phase response of an LTC1064-7

operating at f = 1MHz, ratio = 50:1, f = 20kHz and it closely matches

an ideal straight line. The phase shift is described by: phase shift =

Note 5: The AC swing is typically 11V , 7V , 2.8V , with ± 7.5V, ±5V,

P-P P-P P-P

±2.5V Supply respectively. For more information refer to the THD + Noise

CLK

vs Input graphs.

180° – F (f/f ); f ≤ f .

F is arbitrarily called the “phase factor” expressed in degrees. The phase

factor allows the calculation of the phase at a given frequency.

Example: The phase shift at 14kHz of the LTC1064-7 shown in Figure 1 is:

phase shift = 180° – 430° (14kHz/20kHz) ± nonlinearity = –121° ± 1% or

–121° ± 1.20°.

180

= 1MHz

CLK

RATIO = 50:1

–90

–180

–270

–360

10 12 14 16 18 20

FREQUENCY (kHz)

1164-7 F01

Figure 1. Phase Response in the Passband (Note 2)

10647fb

1 2 345 6 7...16

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