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參數(shù)資料
| 型號： | MF6CWM-50 |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 運動控制電子 |
| 英文描述： | 6th Order Switched Capacitor Butterworth Lowpass |
| 中文描述： | SWITCHED CAPACITOR FILTER, BUTTERWORTH, LOWPASS, PDSO14 |
| 封裝： | SO-14 |
| 文件頁數(shù)： | 5/20頁 |
| 文件大?。?/td> | 861K |
| 代理商： | MF6CWM-50 |
Logic Input-Output Electrical Characteristics
(Continued)
Note 4:
Besides checking the cutoff frequency (f
) and the stopband attenuation at 2 f
c
, two additional frequencies are used to check the magnitude response of the
filter. The magnitudes are referenced to a DC gain of 0.0 dB.
Note 5:
For simplicity all the logic levels have been referenced to V
= 0V and will scale accordingly for
±
5V and
±
2.5V supplies (except for the TTL input logic lev-
els).
Note 6:
The short circuit source current is measured by forcing the output that is being tested to its maximum positive voltage swing and then shorting that output
to the negative supply. The short circuit sink current is measured by forcing the output that is being tested to its maximum negative voltage swing and then shorting
that output to the positive supply. These are the worst-case conditions.
Note 7:
The MF6 is operating with symmetrical split supplies and L.Sh is tied to ground.
Note 8:
Typicals are at 25C and represent most likely parametric norm.
Note 9:
Tested limits are guaranteed to National’s AOQL (Average Outgoing Quality Level).
Note 10:
Design limits are guaranteed, but not 100% tested. These limits are not used to calculate outgoing quality levels.
Note 11:
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. DC and AC electrical specifications do not apply when operating
the device beyond its specified conditions.
Note 12:
Human body model, 100 pF discharged through a 1.5k
resistor.
Note 13:
When the input voltage (V
) at any pin exceeds the power supply rails (V
<
V
or V
>
V
+
) the absolute value of current at that pin should be limited
to 5 mA or less. The 20 mA package input current limits the number of pins that can exceed the power supply boundaries with a 5 mA current limit to four.
Note 14:
The maximum power dissipation must be derated at elevated temperatures and is dictated by T
,
θ
, and the ambient temperature, T
. The maximum
allowable power dissipation at any temperature is P
= (T
T
)/
θ
or the number given in the Absolute Maximum Ratings, whichever is lower. For this device,
T
JMAX
= 125C, and the typical junction-to-ambient thermal resistance is 78C/W. For the MF6CJ this number decreases to 62C/W. For MF6CWM,
θ
JA
= 78C/W.
Typical Performance Characteristics
Schmitt Trigger Threshold Voltage
vs Power Supply Voltage
DS005065-40
Crosstalk from Filter
to Op-Amps (MF6-100)
DS005065-41
Crosstalk from Either Op-Amp
to Filter Output (MF6-50)
DS005065-42
Crosstalk from Filter
to Op-Amps (MF6-50)
DS005065-43
Crosstalk from Either Op-Amp to
Filter Output (MF6-100)
DS005065-44
Equivalent Input Noise
Voltage of Op-Amps
DS005065-45
www.national.com
5
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