lm49350rl National Semiconductor Corporation, lm49350rl Datasheet - Page 13

• Manufacturer Part Number: lm49350rl
• Description: High Performance Audio Codec Sub-system With A Ground-referenced Stereo Headphone Amplifier & An Ultra Low Emi Class D Loudspeaker Amplifier With Dual I2s/pcm Digital Audio Interfaces
• Manufacturer: National Semiconductor Corporation

MICI
ADCI
DACI
AUXINI
AUXOUTI
LOUDSPEAKER AMPLIFIER
LS
THD+N
P
PSRR
SNR
e
V
T
HEADPHONE AMPLIFIERS
THD+N
P
PSRR
SNR
e
X
OS
OS
WU
O
OS
O
TALK
Symbol
EFF
DD
DD
DD
DD
DD
Microphone Quiescent Current
ADC Total Active Current
DAC Total Active Current
Auxiliary Input Amplifier Quiescent
Current
Auxiliary Output Amplifier Quiescent
Current
Loudspeaker Efficiency
Total Harmonic Distortion + Noise
Output Power
Power Supply Rejection Ration
Signal-to-Noise Ratio
Output Noise
Offset Voltage
Turn-On Time
Total Harmonic Distortion + Noise
Headphone Output Power
Power Supply Rejection Ratio
Signal-to-Noise Ratio
Output Noise
Crosstalk
Parameter
mono MIC + MIC Bias On
f
f
Stereo Auxiliary Inputs enabled
AUX_LINE_OUT enabled
Earpiece mode enabled
P
P
R
R
Mono Input Signal
R
Mono Input Signal
V
f
Mono Input Terminated
V
Reference = V
Gain = 0dB, A-weighted
Mono Input Terminated
Gain = 0dB, A-weighted,
Mono Input Terminated
Gain = 0dB, form Mono Input
PMC Clock = 300kHz
P
R
Stereo Analog Input Signal
R
Stereo Analog Input Signal
V
Stereo Analog Inputs Terminated,
V
Mode
Reference = V
Gain = 0dB, A-weighted
Stereo Inputs Terminated
Reference = V
0dB,
A-weighted, I
Gain = 0dB, A-weighted,
Stereo Inputs Terminated
Gain = 0dB, A-weighted,
I
P
R
Stereo Analog Input Signal
S
S
RIPPLE
2
O
O
RIPPLE
REF
O
RIPPLE
REF
S Input = Digital Zero
O
L
L
L
L
L
L
= 48kHz, Stereo
= 48kHz, Stereo
= 8Ω, Mono Input Signal
= 8Ω, f = 1kHz, THD+N = 1%,
= 4Ω, f = 1kHz, THD+N = 1%,
= 32Ω
= 32Ω, f = 1kHz, THD+N = 1%,
= 32Ω
= 400mW, R
= 400mW, f = 1kHz,
= 7.5mW, f = 1kHz,
= 60mW, f = 1kHz,
= 1.0μF
= 1.0μF, Mono Differential Input
= 217Hz
= 200mV
= 200mV
13
2
Conditions
S Input = Digital Zero
OUT
OUT
OUT
L
P-P
P-P
= 8Ω
(1% THD+N )
(1% THD+N )
(0dBFS ) Gain =
, f
RIPPLE
= 217Hz
(Note 6)
Typical
0.025
0.07
495
800
106
0.5
5.5
0.7
0.5
1.0
83
73
95
35
10
28
69
97
96
16
71
9
8
LM49350
(Note 7)
Limit
400
0.1
55
85
50
60
75
98
90
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mW (min)
mV (max)
mW (min)
dB (min)
dB (min)
% (max)
dB (min)
dB (min)
dB (min)
(Limits)
Units
mW
mA
mA
mA
mA
mA
mA
ms
µV
µV
µV
dB
%
%