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LM3189 Datasheet(PDF) 3 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
No. de pieza LM3189
Descripción Electrónicos  LM3189 FM IF System
PDF  8 Pages
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Fabricante Electrónico  NSC [National Semiconductor (TI)]
Página de inicio  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM3189 Datasheet(HTML) 3 Page - National Semiconductor (TI)

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Test Circuits
Test Circuit for LM3189N Using a Single-Tuned Detector Coil
All resistance values are in X
L tunes with 100 pF (C) at 107 MHz
Qo(unloaded) j 75 (Toko No KACS K586HM
or equivalent)
C e001 mF for 50 ms de-emphasis (Europe)
e
0015 mF for 75 ms de-emphasis (USA)
TLH7960 – 3
Test Circuit for LM3189N Using a Double-Tuned Detector Coil
All resistance values are in X
TPRIQo(unloaded
j
75 (tunes with 100 pF
(C12)) 20t of 34e on 732 dia form
SECQo(unloaded) j 75 (tunes with 100 pF
(C2)) 20t of 34e on 732 dia form
kQ(percent of critical coupling) j 70%
(adjusted for coil voltage (VC) e 150 mV
Above values permit proper operation of mute
(squelch) circuit ‘‘E’’ type slugs spacing 4 mm
C e001 mF for 50 ms de-emphasis (Europe)
e
0015 mF for 75 ms de-emphasis (USA)
TLH7960 – 4
3



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