lm49370rl National Semiconductor Corporation, lm49370rl Datasheet - Page 10

• Manufacturer Part Number: lm49370rl
• Description: Audio Sub-system With An Ultra Low Emi, Spread Spectrum, Class D Loudspeaker Amplifier, A Dual-mode Stereo Headphone Amplifier, And A Dedicated Pcm Interface For Bluetooth Transceivers
• Manufacturer: National Semiconductor Corporation

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P
PSRR
SNR
EP
e
V
AUXOUT AMPLIFIER
THD+N
PSRR
CP_OUT AMPLIFIER
THD+N
PSRR
MONO ADC
R
PB
SBA
SNR
ADC
STEREO DAC
R
PB
SBA
SNR
DR
DAC
PLL
F
I2S/PCM
f
I2SCLK
N
IN
EP
OS
ADC
DAC
THD+N
ADC
DAC
DAC
Symbol
ADC
DAC
EP
ADC
LEVEL
DAC
LEVEL
EP
Earpiece Power
Power Supply Rejection Ratio
(Earpiece)
Signal to Noise Ratio
Earpiece Harmonic Distortion
Output Noise
Offset Voltage
Total Harmonic Distortion + Noise
Power Supply Rejection Ratio
Total Harmonic Distortion + Noise
Power Supply Rejection Ratio
ADC Ripple
ADC Passband
ADC Stopband Attenuation
ADC Signal to Noise Ratio
ADC Full Scale Input Level
DAC Ripple
DAC Passband
DAC Stopband Attenuation
DAC Signal to Noise Ratio
DAC Dynamic Range
DAC Full Scale Output Level
Input Frequency Range
I2S CLK Frequency
Parameter
32Ω load, 3.3V
16Ω load, 3.3V
CP_IN terminated
C
V
F
From 0dB Analog AUX input, A-weighted
32Ω load, 3.3V, P
A-weighted
V
CP_IN terminated
C
V
f
V
C
V
f
Lower (HPF Mode 1), f
Upper
Above Passband
HPF Notch, 50 Hz/60 Hz (worst case)
From CPI, A-weighted
A-weighted, AUXOUT
Min
Max
f
f
f
f
RIPPLE
RIPPLE
S
S
S
S
RIPPLE
RIPPLE
O
RIPPLE
O
RIPPLE
BYPASS
BYPASS
BYPASS
= 48kHz; 16 bit mode
= 48kHz; 25 bit mode
= 8kHz; 16 bit mode
= 8kHz; 25 bit mode
= 1V
= 1V
= 217Hz
= 217Hz
= 217 Hz
= 200mVPP
= 200mVPP
RMS
RMS
= 200 mV
10
= 1.0 µF
= 1.0μF
= 1.0μF
, 5kΩ load
, 5kΩ load
Conditions
O
P-P
= 50mW
S
= 8 kHz
(Note 6)
Typical
±0.25
1.536
0.256
3470
0.04
0.02
0.02
115
150
300
0.1
2.4
0.4
76
93
41
86
86
60
58
90
20
70
85
96
8
1
1
LM49370
(Notes 7,
Limit
100
11)
0.5
30
Units
(min)
V
V
MHz
MHz
MHz
MHz
MHz
MHz
mW
mW
kHz
mV
dB
dB
µV
dB
dB
dB
Hz
Hz
dB
dB
dB
dB
dB
dB
dB
%
%
%
RMS
RMS