參數(shù)資料
型號: LTC1264CSW
廠商: LINEAR TECHNOLOGY CORP
元件分類: 運動控制電子
英文描述: High Speed, Quad Universal Filter Building Block
中文描述: QUAD SWITCHED CAPACITOR FILTER, BUTTERWORTH/CHEBYSHEV, UNIVERSAL, PDSO24
封裝: 0.300 INCH, PLASTIC, SOP-24
文件頁數(shù): 3/16頁
文件大小: 227K
代理商: LTC1264CSW
3
LTC1264
1264fb
ELECTRICAL C
temperature range, otherwise specifications are at T
A
= 25
°
C. (Complete Filter) V
S
=
±
5V, f
CLK
= 1MHz, all sides mode 1, f
O
= 50kHz,
Q = 5, unless otherwise noted.
HARA TERISTICS
PARAMETER
DC Offset Voltage (Note 3)
CONDITIONS
V
OS1
(DC Offset of Input Inverter)
V
OS2
(DC Offset of First Integrator)
V
OS3
(DC Offset of Second Integrator)
V
S
=
±
7.5V (f
CLK
is a Square Wave)
V
S
=
±
5V (f
CLK
is a Square Wave)
V
S
=
±
2.375V (f
CLK
is a Square Wave)
V
S
=
±
7.5V, T
A
= 25
°
C
V
S
=
±
5V
MIN
TYP
MAX
±
20
±
45
±
45
UNITS
mV
mV
mV
μ
V
RMS
μ
V
RMS
μ
V
RMS
MHz
mA
mA
Clock Feedthrough
160
120
90
6
14
Maximum Clock Frequency
Power Supply Current
9
23
26
Note 1:
Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2:
Please refer to Typical Maximum Q vs Clock Frequency graphs.
Note 3:
Calculations of output DC offsets of one 2nd order section. Also
see Block Diagram.
C
HARA TERISTICS
U
A
TYPICAL PERFOR
CE
Typical Maximum Q
vs Clock Frequency
Typical Maximum Q
vs Clock Frequency
Typical Maximum Q
vs Clock Frequency
f
O
(measured) – f
O
(ideal)
f
O
(ideal)
V
OSN
V
OSBP
V
OSLP
MODE
1
1b
2
PINS 2, 11, 14, 23
PINS 3, 10, 15, 22
V
OS3
V
OS3
V
OS3
PINS 4, 9, 16, 21
V
OS1
[(1Q) + 1
||
H
OLP
||
] – V
OS3
/Q
V
OS1
[(1/Q) + 1 + R2/R1] – V
OS3
/Q
[V
OS1
(1 + R2/R1 + R2/R3 + R2/R4) – V
OS3
(R2/R3)]
[R4/(R2 + R4)] + V
OS2
[R2/(R2 + R4)]
V
OS2
V
OSN
– V
OS2
(V
OSN
– V
OS2
)(1 + R5/R6)
V
OSN
– V
OS2
3
V
OS3
V
OS1
[1 + R4/R1 + R4/R2 + R4/R3] – V
OS2
(R4/R2)
– V
OS3
(R4/R3)
Note 4:
The center frequency f
O
, error is calculated as:
CLOCK FREQUENCY (MHz)
1.5
T
26
24
22
20
18
16
14
12
10
8
6
4
2
0
2.5
3.5
4.0
1264 G01
2.0
3.0
4.5
5.0
V
S
=
±
7.5V
T
A
85
°
C
A
B
A. MODES 1, 1b
B. MODES 3, 3a
CLOCK FREQUENCY (MHz)
1.0
T
26
24
22
20
18
16
14
12
10
8
6
4
2
0
2.0
3.0
3.5
1264 G02
1.5
2.5
4.0
V
S
=
±
5V
T
A
85
°
C
A
B
A. MODES 1, 1b
B. MODES 3, 3a
CLOCK FREQUENCY (MHz)
1.0
T
20
18
16
14
12
10
8
6
4
2
0
1.8
1264 G03
1.2
1.4
1.6
2.0
B
A
V
S
= SINGLE 5V
T
A
85
°
C
A. MODES 1, 1b
B. MODES 3, 3a
100
The
denotes the specifications which apply over the full operating
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