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參數(shù)資料
| 型號： | LTC1069-6 |
| 廠商： | Linear Technology Corporation |
| 元件分類： | 圓形連接器 |
| 英文描述： | Circular Connector; Body Material:Aluminum; Series:PT06; No. of Contacts:3; Connector Shell Size:12; Connecting Termination:Crimp; Circular Shell Style:Straight Plug; Circular Contact Gender:Socket; Insert Arrangement:12-3 |
| 中文描述： | 單電源，功率非常低，橢圓低通濾波器 |
| 文件頁數(shù)： | 7/8頁 |
| 文件大?。?/td> | 240K |
| 代理商： | LTC1069-6 |
7
LTC1069-1
APPLICATIO
S I
FOR
ATIO
U
the input pin (4) shorted to the AGND pin and depends on
PC board layout and on the value of the power supplies.
With proper layout techniques the values of the clock
feedthrough are shown on Table 2.
W
U
U
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
Any parasitic switching transients during the rise and fall
edges of the incoming clock are not part of the clock
feedthrough specifications. Switching transients have fre-
quency contents much higher than the applied clock; their
amplitude strongly depends on scope probing techniques
as well as grounding and power supply bypassing. The
clock feedthrough can be reduced, if bothersome, by
adding a single RC lowpass filter at the output pin (8) of the
LTC1069-1.
Wideband Noise
The wideband noise of the filter is the total RMS value of
the device’s noise spectral density and determines the
operating signal-to-noise ratio. Most of the wideband
noise frequency contents lie within the filter passband.
The wideband noise cannot be reduced by adding post
filtering. The total wideband noise is nearly independent of
the clock frequency and depends slightly on the power
Table 2. Clock Feedthrough
V
S
3.3V
5V
±
5V
CLOCK FEEDTHROUGH
10
μ
V
RMS
40
μ
V
RMS
160
μ
V
RMS
Table 3. Wideband Noise
V
S
3.3V
5V
±
5V
WIDEBAND NOISE
100
μ
V
RMS
108
μ
V
RMS
112
μ
V
RMS
Aliasing
Aliasing is an inherent phenomenon of sampled data
systems and it occurs for input frequencies approaching
the sampling frequency. The internal sampling frequency
of the LTC1069-1 is 100 times its cutoff frequency. For
instance, if a 98kHz, 100mV
RMS
signal is applied at the
input of an LTC1069-1 operating with a 100kHz clock, a
2kHz, 28
μ
V
RMS
alias signal will appear at the filter output.
Table 4 shows details.
Table 4. Aliasing (f
CLK
= 100kHz)
INPUT FREQUENCY
(V
IN
= 1V
RMS
)
(kHz)
f
CLK
/f
C
= 100:1, f
CUTOFF
= 1kHz
96
(or 104)
97
(or 103)
98
(or 102)
985. (or 101.5)
99
(or 101)
99.5 (or 100.5)
OUTPUT LEVEL
(Relative to Input)
(dB)
OUTPUT FREQUENCY
(Aliased Frequency)
(kHz)
–90.0
–86.0
–71.0
–56.0
–1.1
–0.21
4.0
3.0
2.0
1.5
1.0
0.5
supply voltage (see Table 3). The clock feedthrough speci-
fications are not part of the wideband noise.
TYPICAL APPLICATIO
N
S
Single 3.3V Supply Operation with Output Buffer
Single 5V Operation with Power Shutdown
1
2
3
4
8
7
6
5
V
OUT
V
–
NC
CLK
AGND
V
+
NC
V
IN
0.1
μ
F
0.47
μ
F
V
IN
V
OUT
1069-1 TA05
LTC1069-1
f
500kHz
3.3V
0V
–
+
1/2 LT1366
3.3V
0.1
μ
F
1
2
3
4
8
7
6
5
V
OUT
V
–
NC
CLK
AGND
V
+
NC
V
IN
0.1
μ
F
0.47
μ
F
SHUTDOWN
ON
5V
V
IN
V
OUT
1069-1 TA04
LTC1069-1
f
≤
750kHz
5V
0V
CMOS LOGIC
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相關代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC1069-6C | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Single Supply, Very Low Power, Elliptic Lowpass Filter |
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| LTC1069-6CS8#TR | 功能描述:IC FILTER LP 10TH ORD LPWR 8SOIC RoHS:否 類別:集成電路 (IC) >> 接口 - 濾波器 - 有源 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:1,000 系列:- 濾波器類型:連續(xù)時間，帶通低通 頻率 - 截止或中心:150kHz 濾波器數(shù):4 濾波器階數(shù):8th 電源電壓:4.74 V ~ 11 V，±2.37 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:28-SOIC W 包裝:帶卷 (TR) |
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