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LM4931 Datenblatt(PDF) 5 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
Teilenummer LM4931
Bauteilbeschribung  Audio Subsystem with Mono High Efficiency Loudspeaker and Stereo Headphone Amplifiers
Download  47 Pages
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Hersteller  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM4931 Datenblatt(HTML) 5 Page - National Semiconductor (TI)

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Absolute Maximum Ratings (Notes 1, 2)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Analog Supply Voltage
6.0V
Digital Supply Voltage
6.0V
Storage Temperature
-65˚C to +150˚C
Power Dissipation (Note 3)
Internally Limited
ESD Susceptibility
Human Body Model (Note 4)
2500V
Machine Model (Note 5)
200V
Junction Temperature
150˚C
Thermal Resistance
θ
JA - TLA42YVA
105˚C/W
Operating Ratings
Temperature Range
T
MIN
≤ T
A
≤ T
MAX
−40˚C
≤ T
A
≤ +85˚C
Supply Voltage
DV
DD (Note 8)
2.7V - 4.0V
AV
DD (Note 8)
2.7V - 5.0V
Electrical Characteristics DV
DD = 3V, AVDD = 3V, RLHP =32Ω,RLHF =8Ω
(Notes 1, 2)
The following specifications apply for the circuit shown in Figure 1, unless otherwise specified. Limits apply for T
A = 25˚C.
Symbol
Parameter
Conditions
LM4931
Units
(Limits)
Typical
(Note 6)
Limits
(Note 7)
Power
DI
SD
Digital Shutdown Current
Mode 0
f
MLCK = 12MHz (Note 9)
400
500
µA (max)
No MCLK
1
2
µA (max)
DI
ST
Digital Standby Current
Mode 1, f
MCLK = 12MHz
400
1200
µA (max)
f
MLCK = 12MHz
DI
DD
Digital Power Supply Current
Mode 2, 3, 4
1.3
3.2
mA (max)
Mode 5, 6, 7
2.8
7
mA (max)
Mode 8, 9, 10
3.2
7.5
mA (max)
PLLI
DD
PLL Quiescent Current
f
MCLK = 12MHz
2.8
3.5
mA (max)
AI
SD
Analog Shutdown Current
Mode 0, No load
0.1
2.5
µA (max)
AI
ST
Analog Standby Current
Mode 1, No load
100
200
µA (max)
AI
DD
Analog Power Supply Quiescent
Current
No Load
Mode 2
7.8
19
mA (max)
Mode 3
5.3
10
mA (max)
Mode 4
8.6
15
mA (max)
Mode 5
8.4
15
mA (max)
Mode 6
6.0
15
mA (max)
Mode 7
9.2
15
mA (max)
Mode 8, 9, 10
10.1
16
mA (max)
Loudspeaker Amplifier
V
FS
Full-Scale Output Voltage
Loudspeaker Amplifier)
8
Ω load, 0dB gain setting
2.6
V
P-P
THD+N
Total Harmonic Distortion + Noise
f
OUT = 1kHz, POUT = 200mW
0.4
%
P
OLS
Loudspeaker Amplifier Output
Power
THD = 1% (max), f
OUT = 1kHz
470
350
mW (min)
PSRR
Power Supply Rejection Ratio
(Loudspeaker Amplifier)
C
B = 1.0µF
V
RIPPLE = 200mVP-P
f
RIPPLE = 217Hz
54
dB
Signal = V
O at 0dBFS, f = 1kHz,
Noise = digital zero, A-weighted,
0dB gain setting (Note 10)
SNR (Voice)
Signal-to-Noise Ratio of Voice
Channel (Loudspeaker Amplifier)
f
MCLK = 12.288MHz, PLL disabled
71
dB
www.national.com
5


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