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LM4931 Folha de dados(PDF) 3 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
Nome de Peças LM4931
Descrição Electrónicos  Audio Subsystem with Mono High Efficiency Loudsperker and Stereo Headphone Amplifiers
Download  48 Pages
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Fabricante Electrônico  NSC [National Semiconductor (TI)]
Página de início  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM4931 Folha de dados(HTML) 3 Page - National Semiconductor (TI)

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Connection Diagrams
42-Bump micro SMD
42-Bump micro SMD Marking
20100958
Top View (Bump Side Down)
Order Number LM4931ITL
See NS Package Number TLA42YVA
201009I7
Top View
XY - Date Code
TT - Die Tracebility
G - Boomer Family
C9 - LM4931ITL
Pin Descriptions
PIN
PIN NAME
D/A
I/O
DESCRIPTION
A1
MIC_P
A
I
Microphone positive differential input
A2
MIC_N
A
I
Microphone negative differential input
A3
VDD(MIC)
A
I
Analog Vdd for microphone section
A4
MODE
D
I
Selects between SPI and I
2C control interfaces (I2C=0,SPI=1)
A5
SDA/SDI
D
I/O
I
2C_SDA or SPI_SDI depending on the MODE control
A6
NC
N/A
N/A
No Connect
B1
MIC_P
A
I
Microphone positive differential input
B2
MIC_BIAS
A
O
2V ultra clean power supply for microphones
B3
BYPASS
A
I
Click and Pop / VDD/2 reference filter
B4
ADDR/ENB
D
I
I
2C_ADDR or SPI_ENB depending on the MODE control
B5
SCL/SCK
D
I
I
2C_SCL or SPI_SCK depending on the MODE control
B6
PCM_SDI
D
I
PCM_SDI voice data input
C1
VSS(MIC)
A
I
Analog Vss for microphone section
C2
MIC_REF
A
I
Filter for microphone power supply
C3
NC
N/A
N/A
No Connect
C4
PCM_SDO
D
O
PCM_SDO serial data output
C5
PCM_SYNC
D
I/O
PCM_SYNC pulse for the PCM bus
C6
PCM-CLK
D
I/O
PCM_SYNC pulse for the PCM bus
D1
HPL
A
O
Left Headphone output
D2
VSS(HP)
A
I
Analog Vss for Headphone and Mixer sections
D3
VSS(HP)
A
I
Analog Vss for Headphone and Mixer sections
D4
I
2S_SDI
D
I
I
2S serial data input
D5
I
2S_CLK
D
I/O
I
2S clock signal
D6
VSSD
D
I
Digital Vss
E1
VDD(HP)
A
I
Analog Vdd for Headphone and Mixer sections
E2
HPR
A
O
Right Headphone output
E3
GPIO
D
O
Configurable multi purpose output
E4
I
2S_WS
D
I/O
I
2S word select signal
E5
MCLK
D
I
Input clock from 10MHz - 24.576MHz
E6
VDDD
D
I
Digital Vdd
F1
LS+
A
O
Loudspeaker positive output
F2
VDD(LS)
A
I
Analog Vdd for Loudspeaker section
F3
HP_SENSE
A
I
Input for headphone connection sense circuit
www.national.com
3


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