参数资料
型号: LTC1068-25IG#PBF
厂商: Linear Technology
文件页数: 28/30页
文件大小: 0K
描述: IC FILTR BUILDNG BLK QUAD 28SSOP
标准包装: 47
滤波器类型: 通用开关电容器
频率 - 截止或中心: 200kHz
滤波器数: 4
滤波器阶数: 8th
电源电压: 3.14 V ~ 11 V,±3.14 V ~ 5.5 V
安装类型: 表面贴装
封装/外壳: 28-SSOP(0.209",5.30mm 宽)
供应商设备封装: 28-SSOP
包装: 管件
LTC1068 Series
7
1068fc
ELECTRICAL CHARACTERISTICS
LTC1068
Maximum Q vs Center Frequency
(Modes 1, 1b, 2)
LTC1068
Maximum Q vs Center Frequency
(Modes 2, 3)
LTC1068-200
Maximum Q vs Center Frequency
(Modes 1, 1b, 2)
Table 1. Output DC Offsets One 2nd Order Section
MODE
VOSN
VOSBP VOSLP
1
VOS1[(1/Q) + 1 + ||HOLP||] – VOS3/Q
VOS3
VOSN – VOS2
1b
VOS1[(1/Q) + 1 + R2/R1] – VOS3/Q
VOS3
~(VOSN – VOS2)(1 + R5/R6)
2
[VOS1(1 + R2/R1 + R2/R3 + R2/R4) – VOS3(R2/R3)X
[R4/(R2 + R4)] + VOS2[R2/(R2 + R4)]
VOS3
VOSN – VOS2
3
VOS2
VOS3
VOS1[1 + R4/R1 + R4/R2 + R4/R3] – VOS2(R4/R2) – VOS3(R4/R3)
TYPICAL PERFORMANCE CHARACTERISTICS
CENTER FREQUENCY, fO (kHz)
0
A
B
C
0
MAXIMUM
Q
5
15
20
25
50
35
20
40
50
1068 G01
10
40
45
30
10
30
60
70
A. VS = 3.3V, fCLK(MAX) = 1.5MHz
B. VS = 5V, fCLK(MAX) = 3.4MHz
C. VS = ±5V, fCLK(MAX) = 5.6MHz
(FOR MODE 2 R4 ≥ 10R2)
CENTER FREQUENCY, fO (kHz)
0
A
B
C
0
MAXIMUM
Q
5
15
20
25
50
35
20
40
50
1068 G02
10
40
45
30
10
30
60
A. VS = 3.3V, fCLK(MAX) = 1MHz
B. VS = 5V, fCLK(MAX) = 3MHz
C. VS = ±5V, fCLK(MAX) = 5MHz
(FOR MODE 2 R4 < 10R2)
CENTER FREQUENCY, fO (kHz)
0
A
B
C
55
50
45
40
35
30
25
20
15
10
5
0
TYPICAL
MAXIMUM
Q
8
16
20
24
1068 G03
4
12
28 32
A: VS = 3.3V, fCLK(MAX) = 1.2MHz
B: VS = 5V, fCLK(MAX) = 3.2MHz
C: VS = ±5V, fCLK(MAX) = 6.1MHz
(FOR MODE 2, R4 ≥ 10R2)
LTC1068-200
Maximum Q vs Center Frequency
(Modes 2, 3)
LTC1068-50
Maximum Q vs Center Frequency
(Modes 1, 1b, 2)
LTC1068-50
Maximum Q vs Center Frequency
(Modes 2, 3)
CENTER FREQUENCY, fO (kHz)
0
A
B
C
55
50
45
40
35
30
25
20
15
10
5
0
TYPICAL
MAXIMUM
Q
8
16
20
24
1068 G04
4
12
28 32
A: VS = 3.3V, fCLK(MAX) = 1.2MHz
B: VS = 5V, fCLK(MAX) = 3.2MHz
C: VS = ±5V, fCLK(MAX) = 6.1MHz
(FOR MODE 2, R4 < 10R2)
CENTER FREQUENCY, fO (kHz)
0
A
B
C
55
50
45
40
35
30
25
20
15
10
5
0
TYPICAL
MAXIMUM
Q
8
16
20
24
1068 G05
4
12
28 32
A: VS = 3.3V, fCLK(MAX) = 1.1MHz
B: VS = 5V, fCLK(MAX) = 2.1MHz
C: VS = ±5V, fCLK(MAX) = 3.6MHz
(FOR MODE 2, R4 ≥ 10R2)
CENTER FREQUENCY, fO (kHz)
0
A
B
C
55
50
45
40
35
30
25
20
15
10
5
0
TYPICAL
MAXIMUM
Q
8
16
20
24
1068 G06
4
12
28 32
A: VS = 3.3V, fCLK(MAX) = 1.1MHz
B: VS = 5V, fCLK(MAX) = 2.1MHz
C: VS = ±5V, fCLK(MAX) = 3.6MHz
(FOR MODE 2, R4 < 10R2)
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