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LM4548A Datasheet(PDF) 9 Page - Texas Instruments

No. de pieza LM4548A
Descripción Electrónicos  AC 97 Rev 2 Multi-Channel Audio Codec
Download  34 Pages
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Fabricante Electrónico  TI1 [Texas Instruments]
Página de inicio  http://www.ti.com
Logo TI1 - Texas Instruments

LM4548A Datasheet(HTML) 9 Page - Texas Instruments

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DVDD1
XTL_OUT
SDATA_OUT
48
1
47 46
2
3
4
5
XTL_IN
DVSS1
45
6
7
8
9
10
11
12
LM4548A
$& µ97 Rev 2
Codec
36
35
34
33
32
31
30
29
28
27
26
25
BIT_CLK
SDATA_IN
SYNC
RESET#
PC_BEEP
DVDD2
DVSS2
LINE_OUT_R
3DP
NC
LINE_OUT_L
3DN
NC
NC
AVSS
NC
VREF
VREF_OUT
AVDD
44 43 42 41 40 39 38 37
13 14 15 16 17 18 19 20 21 22 23 24
OBSOLETE
LM4548A
www.ti.com
SNOS988D – NOVEMBER 2002 – REVISED APRIL 2013
Connection Diagram
48 Pin LQFP - Top View
See Package Number PT
PIN DESCRIPTIONS
ANALOG I/O
Name
Pin
I/O
Functional Description
Mono Input
This line level (1 Vrms nominal) mono input is mixed equally into both channels of the
Stereo Mix signal at MIX2 under the control of the PC_Beep Volume control register, 0Ah.
PC_BEEP
12
I
The PC_BEEP level can be muted or adjusted from 0 dB to -45 dB in 3 dB steps. The
Stereo Mix signal feeds both the Line Out and Line Level Out analog outputs and is also
selectable at the Record Select Mux.
Mono Input
This line level (1 Vrms nominal) mono input is mixed equally into both channels of the
Stereo Mix signal at MIX2 under the control of the Phone Volume register, 0Ch. The
PHONE
13
I
PHONE level can be muted or adjusted from +12 dB to -34.5 dB in 1.5 dB steps. The
Stereo Mix signal feeds both the Line Out and Line Level Out analog stereo outputs and is
also selectable at the Record Select Mux.
Left Stereo Channel Input
This line level input (1 Vrms nominal) is selectable at the left channel of the stereo Record
Select Mux for conversion by the left channel ADC. It can also be mixed into the left
AUX_L
14
I
channel of the Stereo Mix 3D signal at MIX1 under the control of the Aux Volume register,
16h. The AUX_L level can be muted (along with AUX_R) or adjusted from +12 dB to -34.5
dB in 1.5 dB steps. Stereo Mix 3D is combined into the Stereo Mix signal at MIX2 for
access to the stereo outputs Line Out and Line Level Out.
Copyright © 2002–2013, Texas Instruments Incorporated
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