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參數資料
| 型號： | LTC1064-3CSW#TRPBF |
| 廠商： | Linear Technology |
| 文件頁數： | 1/12頁 |
| 文件大小： | 0K |
| 描述： | IC FILTR 8TH ORDR LOWPASS 16SOIC |
| 標準包裝： | 1,000 |
| 濾波器類型： | 貝塞爾，低通開關電容器 |
| 頻率 - 截止或中心： | 95kHz |
| 濾波器數： | 1 |
| 濾波器階數： | 8th |
| 電源電壓： | ±2.37 V ~ 8 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-SOIC（0.295"，7.50mm 寬） |
| 供應商設備封裝： | 16-SOIC |
| 包裝： | 帶卷 (TR) |
LTC1064-3
1
10643fa
FEATURES
APPLICATIO S
U
DESCRIPTIO
U
TYPICAL APPLICATIO
U
■
Antialiasing Filters
■
Smoothing Filters
■
Tracking High Frequency Lowpass Filters
■
8th Order Filter in a 14-Pin Package
■
95kHz Maximum Corner Frequency
■
No External Components
■
75:1, 150:1 and 120:1 Clock to Cutoff Frequency
Ratio
■
60VRMS Total Wideband Noise
■
0.03% THD or Better
■
Operates from ±2.37V to ±8V Power Supplies
■
Low Total Output DC Offset
Low Noise, High Frequency,
8th Order Linear Phase Lowpass Filter
The LTC
1064-3 is a monolithic 8th order lowpass Bessel
filter, which provides a linear phase response over its
entire passband. An external TTL or CMOS clock pro-
grams the filter’s cutoff frequency. The clock to cutoff
frequency ratio is 75:1 (Pin 10 at V+) or 150:1 (Pin 10 at
V–) or 120:1 (Pin 10 at GND). The maximum cutoff
frequency is 95kHz. No external components are needed.
The LTC1064-3 features low wideband noise and low
harmonic distortion even for input voltages up to 3VRMS.
In fact the LTC1064-3 overall performance competes with
equivalent multiple op amp RC active realizations. The
LTC1064-3 is available in a 14-pin DIP or 16-pin surface
mounted SOL package. The LTC1064-3 is fabricated using
LTC’s enhanced analog CMOS Si-gate process.
The LTC1064-3 is pin compatible with the LTC1064-1,
LTC1064-2 and LTC1064-4.
8th Order Clock Sweepable Lowpass Bessel Filter
Measured Frequency Response
LTC1064-3
1
2
3
4
5
6
7
14
13
12
11
10
9
8
OUT C
NC
V–
fCLK
75/150
VOUT
NC
V+
NC
VIN
AGND
NC
INV A
1064 TA01a
NOTE: THE POWER SUPPLIES SHOULD BE BYPASSED BY A 0.1F
OR LARGER CAPACITOR CLOSE TO THE PACKAGE. THE CONNECTI0N
BETWEEN PIN 7 AND PIN 14 SHOULD BE MADE UNDER THE IC PACKAGE.
CLOCK = 7MHz
V+
–8V
8V
0.1F
VIN
VOUT
FREQUENCY (kHz)
10
0
–15
–30
–45
–60
–75
–90
–105
1064-3 TA01b
100
1000
V
OUT
/V
IN
(dB)
VS = ±7.5V, fCLK = 7MHz, PIN 10 TO V
+,
f–3dB = 95kHz, GROUP DELAY = 6s
, LTC and LT are registered trademarks of Linear Technology Corporation.
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