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LA72715NV_12 Datasheet(PDF) 7 Page - Sanyo Semicon Device

Part No. LA72715NV_12
Description  JPN MTS (Multi Channel Television Sound) Decoder IC
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Maker  SANYO [Sanyo Semicon Device]
Homepage  http://www.ssdc-jp.com/eng/
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 7 page
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LA72715NV
Pin Functions
Pin
No.
Pin Name
DC voltage
AC level
Function
Equivalent Circuit
1
AM DETECTOR
DC : 2.3V
Reference terminal of AM detection.
10k
Ω
10k
Ω
VCC
1k
Ω
1k
Ω
PAD
2
14
DC FILTER
OUT
2pin
DC : 2.6V
14pin
DC : 2.1V
Absorbing the DC offset of signal line by
external capacity.
PAD
3
15
DC FILTER IN
DC : 2.4V
Absorbing the DC offset of signal line by
external capacity.
2.4V
1k
Ω
2k
Ω
2k
Ω
100k
Ω
PAD
4
FM FILTER
DC : 2.9V
Filter terminal for making stable DC voltage of
FM detection output in SIF part.
Normally, use a condenser of 4.7
μF. Increase
the capacity value with concerning frequency
characteristics of low level.
1k
Ω
1k
Ω
PAD
5
SIF INPUT
DC : 2.4V
Input terminal for SIF.
The input impedance is about 5k
Ω. Be care for
about pattern layout of the input circuit,
because of causing buzz-beat and buzz by
leaking noise signal into the input terminal.
(The noise signal depending on sound is
particularly video signal and chroma signal and
so on. VIF carrier becomes noise signal.)
10k
Ω
10k
Ω
500
Ω
500
Ω
PAD
6
GND
Continued on next page.
No.A1770-7/13




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