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LM148QML Datenblatt(PDF) 13 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
Teilenummer LM148QML
Bauteilbeschribung  Quad 741 Op Amps
PDF  17 Pages
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Hersteller  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM148QML Datenblatt(HTML) 13 Page - National Semiconductor (TI)

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Typical Applications—LM148 (Continued)
A 4th Order 1 kHz Elliptic Filter (4 Poles, 4 Zeros)
20120514
R1C1 = R2C2 = t
R'1C'1 = R'2C'2 = t'
fC = 1 kHz, fS = 2 kHz, fp = 0.543, fZ = 2.14, Q = 0.841, f' P = 0.987, f' Z = 4.92, Q' = 4.403, normalized to ripple BW
Use the BP outputs to tune Q, Q', tune the 2 sections separately
R1 = R2 = 92.6k, R3 = R4 = R5 = 100k, R6 = 10k, R0 = 107.8k, RL = 100k, RH = 155.1k,
R'1 = R'2 = 50.9k, R'4 = R'5 = 100k, R'6 = 10k, R'0 = 5.78k, R'L = 100k, R'H = 248.12k, R'f = 100k. All capacitors are 0.001 µF.
Lowpass Response
20120515
www.national.com
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