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LM4947 Datasheet(PDF) 4 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
Part # LM4947
Description  Mono Class D and Stereo Audio Subsystem with OCL Headphone Amplifier and National 3D
PDF  32 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM4947 Datasheet(HTML) 4 Page - National Semiconductor (TI)

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Absolute Maximum Ratings (Note 2)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage
6.0V
Storage Temperature
−65˚C to +150˚C
Input Voltage
−0.3 to V
DD +0.3
ESD Susceptibility (Note 3)
2.0kV
ESD Machine model (Note 6)
200V
Junction Temperature (T
J)
150˚C
Solder Information
Vapor Phase (60 sec.)
215˚C
Infrared (15 sec.)
220˚C
Thermal Resistance
θ
JA (typ) - TLA25CBA
65˚C/W
Operating Ratings
Temperature Range
−40˚C to 85˚C
Supply Voltage (V
DD)
2.7V
≤ V
DD
≤ 5.5V
Supply Voltage (I
2C)
2.2V
≤ V
DD
≤ 5.5V
Supply Voltage (Loudspeaker V
DD)
2.7V
≤ V
DD
≤ 5.5V
Electrical Characteristics 3.3V (Notes 2, 7)
The following specifications apply for V
DD = 3.3V, TA = 25˚C, and all gains are set for 0dB unless otherwise specified.
Symbol
Parameter
Conditions
LM4947
Units
(Limits)
Typical
(Note 4)
Limits
(Note 5)
I
DDQ
Quiescent Supply Current
Output Modes 2, 4, 6
V
IN = 0V; No load,
OCL = 0 (Table 2)
4.5
6.5
mA (max)
Output Modes 1, 3, 5, 7
V
IN = 0V; No load, BTL,
OCL = 0 (Table 2)
6.5
8
mA (max)
I
SD
Shutdown Current
Output Mode 0
0.1
1
µA (max)
V
OS
Output Offset Voltage
V
IN = 0V, Mode 7, Mono
2
15
mV (max)
V
IN = 0V, Mode 7, Headphones
2
15
P
O
Output Power
MONO
OUT;RL =8
Ω
THD+N = 1%; f = 1kHz, BTL, Mode 1
500
400
mW (min)
R
OUT and LOUT;RL =32
Ω
THD+N = 1%; f = 1kHz, SE, Mode 4
37
33
mW (min)
THD+N
Total Harmonic Distortion Plus
Noise
MONO
OUT
f = 1kHz, P
OUT = 250mW;
R
L =8
Ω, BTL, Mode 1
0.03
%
R
OUT and LOUT
f = 1kHz, P
OUT = 12mW;
R
L =32
Ω, SE, Mode 4
0.02
%
N
OUT
Output Noise
A-weighted, 0dB
inputs terminated, output referred
Speaker; Mode 1
39
µV
Speaker; Mode 3
39
µV
Speaker; Mode 5
42
µV
Speaker; Mode 7
38
µV
Headphone; SE, Mode 2
15
µV
Headphone; SE, Mode 4
15
µV
Headphone; SE, Mode 6
17
µV
Headphone; OCL, Mode 2
12
µV
Headphone; OCL, Mode 4
15
µV
Headphone; OCL, Mode 6
17
µV
www.national.com
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