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LM4935 Folha de dados(PDF) 9 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Nome de Peças LM4935
Descrição Electrónicos  Audio Sub-System with Dual-Mode Stereo Headphone and Mono High Efficiency Loudspeaker Amplifiers and Multi-Purpose ADC
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Fabricante Electrônico  NSC [National Semiconductor (TI)]
Página de início  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM4935 Folha de dados(HTML) 9 Page - National Semiconductor (TI)

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10.0 Electrical Characteristics (Notes 1, 2) Unless otherwise stated PLL_V
DD = 3.3V, D_VDD = 3.3V,
BB_VDD = 1.8V, A_VDD = 3.3V, LS_VDD = 3.3V. The following specifications apply for the circuit shown in Figure 2 unless
otherwise stated. Limits apply for 25˚C. (Continued)
Symbol
Parameter
Conditions
LM4935
Units
Typical
(Note 6)
Limit
(Note 7)
DC CURRENT CONSUMPTION
DACI
DD
DAC Active Current
f
MCLK = 13MHz, DAC ON only;
PLL OFF, f
S = 48kHz
7.4
mA
f
MCLK = 19.2MHz, DAC ON only
PLL OFF; f
S = 48kHz
10.7
mA
SARI
DD
SAR Active Current
f
MCLK = 13MHz, SAR ON only
1.6
mA
f
MCLK = 19.2MHz, SAR ON only
2.3
mA
LSI
DD
Loudspeaker Quiescent Current
LS ON only
8.8
mA
HPI
DD
Headphone Quiescent Current
HP ON only, SE MODE
3.5
mA
HP ON only, OCL MODE
3.9
mA
EPI
DD
Earpiece Quiescent Current
EP ON only
4.4
mA
AUXI
DD
AUXOUT Quiescent Current
AUXOUT ON only
4.8
mA
CPOUTI
DD
CPOUT Quiescent Current
CPOUT ON only
4.8
mA
LOUDSPEAKER AMPLIFIER
P
LS
Max Loudspeaker Power
8
Ω load, LS_V
DD = 5V
1.3
W
8
Ω load, LS_V
DD = 4.2V
0.9
W
8
Ω load, LS_V
DD = 3.3V
0.6
0.44
W (min)
LS
THD+N
Loudspeaker Harmonic Distortion
8
Ω load, LS_V
DD = 3.3V,
P
O = 400mW
0.4
%
LS
EFF
Efficiency
0 dB Input
MCLK = 12.000 MHz
84
%
PSRR
LS
Power Supply Rejection Ration
(Loudspeaker)
AUX inputs terminated
C
BYPASS = 1.0 µF
V
RIPPLE = 200 mVP-P
f
RIPPLE = 217 Hz
54
dB
SNR
LS
Signal to Noise Ratio
From 0 dB Analog AUX input at
1 kHz, A-weighted
76
dB
e
N
Output Noise
A-weighted
350
µV
V
OS
Offset Voltage
7
mV
HEADPHONE AMPLIFIER
P
HP
Headphone Power
32
Ω load, 3.3V, SE
33
20
mW
(min)
16
Ω load, 3.3V, SE
52
mW
32
Ω load, 3.3V, OCL, VCM = 1.5V
31
mW
32
Ω load, 3.3V, OCL, VCM = 1.2V
20
mW
16
Ω load, 3.3V, OCL, VCM = 1.5V
50
mW
16
Ω load, 3.3V, OCL, VCM = 1.2V
32
mW
PSRR
HP
Power Supply Rejection Ratio
(Headphones)
AUX inputs terminated
C
BYPASS = 1.0 µF
V
RIPPLE = 200 mVP-P
f
RIPPLE = 217 Hz
SE Mode
60
dB
OCL Mode
VCM = 1.2V
68
dB
OCL Mode
VCM = 1.5V
65
dB
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