鈻?/div>
DESCRIPTIO
8th Order Filter in a 14-Pin Package
140kHz Maximum Corner Frequency
No External Components
50:1 and 100:1 Clock to Cutoff Frequency Ratio
80碌V
RMS
Total Wideband Noise
0.03% THD or Better
Operates from
鹵2.37V
to
鹵8V
Power Supplies
The LTC
廬
1064-2 is a monolithic 8th order lowpass
Butterworth filter, which provides a maximally flat pass-
band. The attenuation slope is 鈥?8dB/octave and the
maximum attenuation is in excess of 80db. An external
TTL or CMOS clock programs the filter鈥檚 cutoff frequency.
The clock to cutoff frequency ratio is 100:1 (Pin 10 at
V
鈥?/div>
) or 50:1 (Pin 10 at V
+
). The maximum cutoff frequency
is 140kHz. No external components are needed.
The LTC1064-2 features low wideband noise and low
harmonic distortion even for input voltages up to 3V
RMS
.
In fact the LTC1064-2 overall performance competes with
equivalent multiple op amp RC active realizations. The
LTC1064-2 is available in a 14-pin DIP or 16-pin surface
mounted SW package. The LTC1064-2 is fabricated using
LTC鈥檚 enhanced analog CMOS Si-gate process.
The LTC1064-2 is pin compatible with the LTC1064-1.
, LTC and LT are registered trademarks of Linear Technology Corporation.
APPLICATIO S
鈻?/div>
鈻?/div>
鈻?/div>
Antialiasing Filters
Smoothing Filters
Tracking High Frequency Lowpass Filters
TYPICAL APPLICATIO
8th Order Clock Sweepable
Lowpass Butterworth Filter
1
14
OUT C
LTC1064-2
2
13
NC
V
IN
NC
3
8V
4
5
6
7
V
OUT
/V
IN
(dB)
Measured Frequency Response
0
V
S
=
鹵7.5V
鈥?5
鈥?0
AGND
V
+
AGND
NC
R
IN
A
V
鈥?/div>
f
CLK
50/100
V
OUT
NC
12
11
10
9
8
鈥?V
CLOCK = 5MHz
鈥?5
鈥?0
鈥?5
鈥?0
鈥?05
1064 TA01a
0
100
NOTE: THE POWER SUPPLIES SHOULD BE BYPASSED BY A 0.1碌F
CAPACITOR CLOSE TO THE PACKAGE. THE NC PINS 1, 6, 8,
AND 13 SHOULD BE PREFERABLY GROUNDED.
U
200 300 400 500
FREQUENCY (kHz)
600
700
1064-2 TA01b
U
U
10642fa
1
LTC1064-2CSW 產(chǎn)品屬性
LTC1064-2
47
集成電路 (IC)
接口 - 濾波器 - 有源
-
巴特沃斯，低通開關(guān)電容器
140kHz
1
8th
±2.37 V ~ 8 V
表面貼裝
16-SOIC（0.295"，7.50mm 寬）
16-SOIC
管件
LTC1064-2CS
LTC1064-2CSW相關(guān)型號(hào)PDF文件下載
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描述
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