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LTC1069-1 PDF预览

LTC1069-1

更新时间: 2023-12-20 18:45:14
品牌 Logo 应用领域
亚德诺 - ADI /
页数 文件大小 规格书
10页 141K
描述
低功率、8 阶渐进式椭圆、低通滤波器

LTC1069-1 数据手册

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LTC1069-1  
TYPICAL PERFORMANCE CHARACTERISTICS  
Transition Band Gain vs  
Passband Gain vs Frequency  
Frequency  
Stopband Gain vs Frequency  
1.0  
0.8  
10  
0
–70  
–72  
–74  
–76  
–78  
–80  
–82  
–84  
–86  
–88  
–90  
V
f
C
V
=
CLK  
5V  
V
f
C
V
=
CLK  
5V  
S
S
V
=
5V  
S
= 500kHz  
= 500kHz  
f
f
= 500kHz  
CLK  
C
f
= 5kHz  
f
= 5kHz  
= 5kHz  
= 2V  
0.6  
–10  
–20  
–30  
–40  
–50  
–60  
–70  
–80  
–90  
= 2V  
= 2V  
IN  
RMS  
IN  
RMS  
V
IN  
RMS  
0.4  
0.2  
0
–0.2  
–0.4  
–0.6  
–0.8  
–1.0  
5
6
7
8
9
10  
11  
11 12 13 14 15 16 17 18 19 20 21  
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0  
FREQUENCY (kHz)  
FREQUENCY (kHz)  
FREQUENCY (kHz)  
10691 G02  
10691 G03  
10691 G01  
Passband Gain vs Clock  
Passband Gain vs Clock  
Frequency, VS = Single 5V  
Passband Gain vs Clock  
Frequency, VS = 5V  
Frequency, VS = Single 3.3V  
2.0  
1.5  
2.0  
1.5  
2.0  
1.5  
V
V
= SINGLE 3.3V  
V
V
= SINGLE 5V  
V
V
=
IN  
5V  
RMS  
S
S
S
= 0.5V  
= 1.2V  
= 2V  
IN  
RMS  
IN  
RMS  
1.0  
1.0  
1.0  
f
= 1.5MHz  
= 15kHz  
f
= 1MHz  
f
= 750kHz  
CLK  
C
f
= 750kHz  
= 7.5kHz  
CLK  
C
CLK  
C
CLK  
C
f
f
= 10kHz  
f
= 7.5kHz  
f
0.5  
0.5  
0.5  
0
0
0
f
= 1MHz  
f
C
= 500kHz  
CLK  
C
CLK  
f
= 10kHz  
f
= 5kHz  
–0.5  
–1.0  
–1.5  
–2.0  
–0.5  
–1.0  
–1.5  
–2.0  
–0.5  
–1.0  
–1.5  
–2.0  
f
= 500kHz  
C
CLK  
f
= 500kHz  
C
CLK  
f
= 5kHz  
f
= 5kHz  
1.5  
2.5 3.5 4.5 5.5  
FREQUENCY (kHz)  
7.5  
1.5 2.5 3.5 4.5 5.5  
7.5 8.5 9.5 10.5  
3
5
7
9
11  
15  
0.5  
6.5  
0.5  
6.5  
1
13  
FREQUENCY (kHz)  
FREQUENCY (kHz)  
10691 G04  
10691 G05  
10691 G06  
Phase and Group Delay vs  
Frequency  
Gain vs Supply Voltage  
Transient Response  
10  
0
0
–90  
f
= 500kHz  
V
f
C
= SINGLE 5V  
CLK  
= 5kHz  
CLK  
S
V
= 0.5V  
RMS  
= 500kHz  
IN  
f
–10  
–20  
–30  
–40  
–50  
–60  
–70  
–80  
–90  
PHASE  
–180  
–270  
–360  
–450  
–540  
–630  
–720  
0.6  
0.5  
0.4  
0.3  
0.2  
0.1  
0
1V/DIV  
GROUP DELAY  
V
= 3.3V  
S
10691 G09  
0.2ms/DIV  
V
= 5V  
S
V
=
5V  
S
V
7
= 5V  
S
f
f
= 1MHz  
CLK  
IN  
= 500Hz  
1
2
3
4
5
7
1
3
5
9
11 13 15 17 19 21  
0
6
4V SQUARE WAVE  
P-P  
FREQUENCY (kHz)  
FREQUENCY (kHz)  
10691 G07  
10691 G08  
10691fa  
4

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