参数资料
型号: LTC1562CG-2#TR
厂商: Linear Technology
文件页数: 4/16页
文件大小: 0K
描述: IC FILTER UNIV RC QUAD LN 20SSOP
标准包装: 1,800
滤波器类型: 通用连续计时
频率 - 截止或中心: 300kHz
滤波器数: 4
滤波器阶数: 8th
电源电压: 4.75 V ~ 10.5 V,±4.75 V ~ 5.25 V
安装类型: 表面贴装
封装/外壳: 20-SSOP(0.209",5.30mm 宽)
供应商设备封装: 20-SSOP
包装: 带卷 (TR)
12
LTC1562-2
15622fa
TYPICAL APPLICATIONS
U
RIN2 20.5k
RQ2 26.7k
R22 10k
R24 4.02k
RQ4 3.24k
RIN4 40.2k
RQ3 59k
R23 11.3k
RQ1 9.09k
R21 7.15k
VIN
5V
0.1
F
0.1
F
– 5V*
VOUT
*V ALSO AT PINS 4, 7, 14 & 17
ALL RESISTORS 1% METAL FILM
ALL CAPACITORS 5% STANDARD VALUES
CIN1 220pF
CIN2 82pF
CIN3 47pF
RIN3 45.3k
CIN4 100pF
1562-2 TA03a
20
19
18
16
15
13
12
11
1
2
3
5
6
8
9
10
INV C
V1 C
V2 C
V
AGND
V2 D
V1 D
INV D
INV B
V1 B
V2 B
V+
SHDN
V2 A
V1 A
INV A
LTC1562-2
175kHz 8th Order Elliptic Highpass Filter
GAIN
(dB)
10
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
50k
900k
FREQUENCY (Hz)
200k
1562-2 TA03b
Amplitude Response
This procedure can be iterated, adjusting the value of RT,
to find convenient values for CINA and CINB since resistor
values are generally available in finer increments than
capacitor values.
LTC1562/LTC1562-2 Demo Board
The LTC demonstration board DC266 is assembled with
an LTC1562 or LTC1562-2 in a 20-pin SSOP package and
power supply decoupling capacitors. Jumpers on the
board configure the filter chip for dual or single supply
operation and power shutdown. Pads for surface mount
resistors and capacitors are provided to build application-
specific filters. Also provided are terminals for inputs,
outputs and power supplies.
Notches and Elliptic Responses
Further circuit techniques appear in the LTC1562 data
sheet under the heading “Notches and Elliptic Responses.”
These techniques are directly applicable to the LTC1562-2
with the substitution of the different values for the internal
components R1 and C. In the LTC1562-2, R1 is 7958
and C is 100pF.
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