lm4935rlx National Semiconductor Corporation, lm4935rlx Datasheet - Page 10
lm4935rlx
Manufacturer Part Number
lm4935rlx
Description
Audio Sub-system With Dual-mode Stereo Headphone And Mono High Efficiency Loudspeaker Amplifiers And Multi-purpose Adc
Manufacturer
National Semiconductor Corporation
Datasheet
1.LM4935RLX.pdf
(113 pages)
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DC CURRENT CONSUMPTION
DACI
SARI
LSI
HPI
EPI
AUXI
CPOUTI
LOUDSPEAKER AMPLIFIER
P
LS
LS
PSRR
SNR
e
V
HEADPHONE AMPLIFIER
P
PSRR
10.0 Electrical Characteristics
BB_V
otherwise stated. Limits apply for 25˚C. (Continued)
N
LS
OS
HP
Symbol
THD+N
EFF
DD
DD
DD
LS
DD
DD
DD
LS
HP
DD
DD
= 1.8V, A_V
DAC Active Current
SAR Active Current
Loudspeaker Quiescent Current
Headphone Quiescent Current
Earpiece Quiescent Current
AUXOUT Quiescent Current
CPOUT Quiescent Current
Max Loudspeaker Power
Loudspeaker Harmonic Distortion
Efficiency
Power Supply Rejection Ration
(Loudspeaker)
Signal to Noise Ratio
Output Noise
Offset Voltage
Headphone Power
Power Supply Rejection Ratio
(Headphones)
DD
= 3.3V, LS_V
Parameter
DD
= 3.3V. The following specifications apply for the circuit shown in Figure 2 unless
(Notes 1, 2) Unless otherwise stated PLL_V
f
PLL OFF, f
f
PLL OFF; f
f
f
LS ON only
HP ON only, SE MODE
HP ON only, OCL MODE
EP ON only
AUXOUT ON only
CPOUT ON only
8Ω load, LS_V
8Ω load, LS_V
8Ω load, LS_V
8Ω load, LS_V
P
0 dB Input
MCLK = 12.000 MHz
AUX inputs terminated
C
V
f
From 0 dB Analog AUX input at
1 kHz, A-weighted
A-weighted
32Ω load, 3.3V, SE
16Ω load, 3.3V, SE
32Ω load, 3.3V, OCL, VCM = 1.5V
32Ω load, 3.3V, OCL, VCM = 1.2V
16Ω load, 3.3V, OCL, VCM = 1.5V
16Ω load, 3.3V, OCL, VCM = 1.2V
AUX inputs terminated
C
V
f
SE Mode
OCL Mode
VCM = 1.2V
OCL Mode
VCM = 1.5V
MCLK
MCLK
MCLK
MCLK
RIPPLE
RIPPLE
O
RIPPLE
RIPPLE
BYPASS
BYPASS
= 400mW
= 13MHz, DAC ON only;
= 19.2MHz, DAC ON only
= 13MHz, SAR ON only
= 19.2MHz, SAR ON only
= 217 Hz
= 217 Hz
= 200 mV
= 200 mV
10
= 1.0 µF
= 1.0 µF
S
S
Conditions
= 48kHz
= 48kHz
DD
DD
DD
DD
= 5V
= 4.2V
= 3.3V
= 3.3V,
P-P
P-P
DD
(Note 6)
Typical
10.7
350
7.4
1.6
2.3
8.8
3.5
3.9
4.4
4.8
4.8
1.3
0.9
0.6
0.4
= 3.3V, D_V
84
54
76
33
52
31
20
50
32
60
68
65
7
LM4935
(Note 7)
Limit
0.44
DD
20
= 3.3V,
W (min)
Units
(min)
mW
mW
mW
mW
mW
mW
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mV
dB
dB
µV
dB
dB
dB
W
W
%
%
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