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LM4931 データシート(PDF) 3 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
部品番号 LM4931
部品情報  Audio Subsystem with Mono High Efficiency Loudsperker and Stereo Headphone Amplifiers
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メーカー  NSC [National Semiconductor (TI)]
ホームページ  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM4931 データシート(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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