Datasheet > LTC1164-6

LTC1164-6

更新时间： 2023-12-20 18:45:40

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
12页	240K
描述
低功率、 8 阶、引脚可选的椭圆或线性相位低通滤波器

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LTC1164-6 数据手册

LTC1164-6

O U

PPLICATI

S I FOR ATIO

Table 6. Transient Response of LTC Lowpass Filters

and 1kHz cutoff frequency receives a 98.5kHz, 10mV_RMS

input signal, a 1.5kHz, 10µV_RMSalias signal will appear at

its output. When the LTC1164-6 operates with a clock-to-

cutoff frequency of 50:1, aliasing occurs at twice the clock

frequency. Table 5 shows details.

DELAY

TIME*

(SEC)

RISE

SETTLING OVER-

TIME** TIME*** SHOOT

LOWPASS FILTER

(SEC)

(%)

LTC1064-3 Bessel

LTC1164-5 Linear Phase

LTC1164-6 Linear Phase

0.50/f

0.43/f

0.34/f

0.80/f

0.85/f

1.15/f

0.5

Table 4. Maximum V vs V and f

CLK

POWER SUPPLY

MAXIMUM f

MAXIMUM V

(f > 35kHz)

RMS IN

LTC1264-7 Linear Phase

LTC1164-7 Linear Phase

LTC1064-7 Linear Phase

1.15/f

1.20/f

0.36/f

0.39/f

2.05/f

2.20/f

±7.5V

1.5MHz

1MHz

≥1MHz

1MHz

0.7V

(f > 25kHz)

RMS IN

(f > 250kHz)

RMS IN

LTC1164-5 Butterworth

0.80/f

0.48/f

2.40/f

±5V

2.5V

0.5V

(f > 25kHz)

RMS IN

(f > 100kHz)

RMS IN

LTC1164-6 Elliptic

LTC1064-4 Elliptic

LTC1064-1 Elliptic

0.85/f

0.90/f

0.85/f

0.54/f

4.30/f

4.50/f

6.50/f

Single 5V

0.7V

0.5V

(f > 25kHz)

RMS IN

(f > 100kHz)

RMS IN

* To 50% ±5%, ** 10% to 90% ±5%, *** To 1% ±0.5%

Table 5. Aliasing (f

INPUT FREQUENCY

= 100kHz)

CLK

OUTPUT LEVEL

(Relative to Input)

(dB)

OUTPUT FREQUENCY

(Aliased Frequency)

(kHz)

(V = 1V

)

RMS

OUTPUT

INPUT

(kHz)

/f = 100:1, f = 1kHz

CUTOFF

90%

50%

10%

CLK

96 (or 104)

97 (or 103)

98 (or 102)

98.5 (or 101.5)

99 (or 101)

–75.0

– 68.0

– 65.0

– 60.0

– 3.2

4.0

3.0

2.0

1.5

1.0

0.5

99.5 (or 100.5)

– 0.5

/f = 50:1, f = 2kHz

CUTOFF

CLK

192 (or 208)

194 (or 206)

196 (or 204)

198 (or 202)

199 (or 201)

199.5(or 200.5)

–76.0

– 68.0

– 63.0

– 3.4

– 1.3

– 0.9

8.0

6.0

4.0

2.0

1.0

0.5

0.54

CUTOFF

RISE TIME (t ) =

±5%

4.3

CUTOFF

SETTLING TIME (t ) =

(TO 1% of OUTPUT)

±5%

0.85

CUTOFF

TIME DELAY (t ) = GROUP DELAY ≈

(TO 50% OF OUTPUT)

1164-6 F04

Figure 4

TYPICAL APPLICATI S

8th Order Elliptic Lowpass Filter

(f /f ) = 50:1

CLK

NOTES:

1. OPTIONAL OUTPUT BUFFER

1/2πRC = (2)(f

–

)

CUTOFF

0.1µF

LTC1164-6

–

CLK

2. PINS 1, 8, 13 CAN BE GROUNDED

OR LEFT FLOATING

0.1µF

LT 1006

OUT

1164-6 TA06

–

11646fa

1...6 7 8910 11 12

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