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LM4832 Datasheet(PDF) 16 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
No. de pieza LM4832
Descripción Electrónicos  Digitally Controlled Tone and Volume Circuit with Stereo Audio Power Amplifier, Microphone Preamp Stage and National 3D Sound
PDF  22 Pages
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Fabricante Electrónico  NSC [National Semiconductor (TI)]
Página de inicio  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM4832 Datasheet(HTML) 16 Page - National Semiconductor (TI)

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Application Information (Continued)
LM4832 SAMPLE LAYOUT
LAYOUT PARTS LIST
Name
Type
Quantity
Capacitors:
C
OUT
1000 µF, elec.,
Digikey #P6205
4
C
MOUT
47 µF, elec., Digikey #P5202
1
C
S
0.33 µF, film, Digikey #P4669
3
C
TONE
8200 pF, ceramic,
Digikey #P4823
4
C
LIN,CMIN,CIN
1 µF, film, Digikey #E1105
6
C
B
0.33 µF, film,
Digikey #EF1334
1
C1
0.1 µF, film, Digikey #EF1104
1
Resistors (all resistors: Digikey #(Value)QBK):
R1
20 k
Ω, 1/4W
1
R2
680 k
Ω, 1/4W
1
R
DATA
1k
Ω, 1/4W
1
R
GND
100
Ω, 1/4W
1
R
PD
100 k
Ω, 1/4W
1
LAYOUT PARTS LIST
Name
Type
Quantity
Connectors:
Banana Jack
Black
Mouser #164-6218
3
Red
Mouser #164-6218
3
RCA Jack
Mouser #16PJ097
7
Stereo
Headphone
Shogyo #JJ-0357-3RT
1
Mono Miniplug
Shogyo #JJ-0357-B
2
36-pin
Centronics
Digikey #1036RF
1
LAYOUT DESCRIPTION
The layout given in the following pages is meant to be con-
nected to a PC by a parallel port (printer) cable. The board is
controlled by software for a Windows PC. The parallel cable
must be the standard type used for hooking up a printer to a
PC: one end is a DB-25 connector andthe other is a 36 pin
Centronics connector.
Banana connections are provided for V
DD, ground, and am-
plifier outputs. Amplifier outputs are also routed to a stereo
headphone jack. RCA connections are provided for amplifier
inputs, loop in, loop out, and microphone out. Mono mini-
plug connectors are provided for microphone inputs.
If required, microphones can be biased using the resistors
R
MIC1 and RMIC2.
This layout is set up to allow the use of the internal tone-
control circuitry or the external loop. The jumper next to each
C
LIN capacitor controls which route the signal should take.
DS100014-31
www.national.com
16



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