lm49350rl National Semiconductor Corporation, lm49350rl Datasheet - Page 15
lm49350rl
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
Datasheet
1.LM49350RL.pdf
(104 pages)
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LM49350RL
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R
PB
SNR
MIC BIAS
V
VOLUME CONTROL
VCR
VCR
VCR
VCR
SS
SS
SS
SS
SV
SV
BIAS
DAC
Note 1: “Absolute Maximum Ratings” indicate limits beyond which damage to the device may occur, including inoperability and degradation of device reliability
and/or performance. Functional operation of the device and/or non-degradation at the Absolute Maximum Ratings or other conditions beyond those indicated in
the Recommended Operating Conditions is not implied. The Recommended Operating Conditions indicate conditions at which the device is functional and the
device should not be operated beyond such conditions. All voltages are measured with respect to the ground pin, unless otherwise specified.
Note 2: The Electrical Characteristics tables list guaranteed specifications under the listed Recommended Operating Conditions except as otherwise modified
or specified by the Electrical Characteristics Conditions and/or Notes. Typical specifications are estimations only and are not guaranteed.
Note 3: The maximum power dissipation must be derated at elevated temperatures and is dictated by T
allowable power dissipation is P
Note 4: Human body model, applicable std. JESD22-A114C.
Note 5: Machine model, applicable std. JESD22-A115-A.
Note 6: Typical values represent most likely parametric norms at T
characterization and are not guaranteed.
Note 7: Datasheet min/max specification limits are guaranteed by test or statistical analysis.
Symbol
DAC
AUX
DAC
ADC
MIC
AUX
MIC
DAC
AUX
DAC
ADC
MIC
DAC Ripple
DAC Passband
DAC Signal-to-Noise Ratio
Microphone Bias Voltage
Stereo Input Volume Control Range
DAC Volume Control Range
ADC Volume Control Range
MIC Volume Control Range
AUX Volume Control Stepsize
DAC Volume Control Stepsize
DAC Volume Control Stepsize
MIC Volume Control Stepsize
AUX Volume Setting Variation
MIC Volume Setting Variation
Parameter
DMAX
= (T
JMAX
- T
A
) / θ
JA
or the number given in Absolute Maximum Ratings, whichever is lower.
Upper –3dB Point
f
MIC input selected
Minimum Gain
Maximum Gain
Minimum Gain
Maximum Gain
Minimum Gain
Maximum Gain
Minimum Gain
Maximum Gain
S
= 48kHz, A-weighted
A
= +25ºC, and at the Recommended Operation Conditions at the time of product
15
Conditions
JMAX
, θ
JA
, and the ambient temperature, T
(Note 6)
Typical
0.45*f
–46.5
–76.5
–76.5
0.1
2.2
1.5
1.5
1.5
96
12
18
18
36
6
2
LM49350
S
(Note 7)
Limit
±1
±1
A
. The maximum
www.national.com
dB (max)
dB (max)
(Limits)
Units
kHz
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
V
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