lm49370rl National Semiconductor Corporation, lm49370rl Datasheet - Page 13

• 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

Total DC Power Dissipation
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
functional but do not guarantee specific performance limits.
Characteristics state DC and AC electrical specifications under particular test conditions which guarantee specific performance limits. This assumes that the
device is within the Operating Ratings. Specifications are not guaranteed for parameters where no limit is given, however, the typical value is a good indication
of device performance.
Note 2: All voltages are measured with respect to the relevant V
device.
Note 3: The maximum power dissipation must be de-rated at elevated temperatures and is dictated by TJ
allowable power dissipation is P
Note 4: Human body model: 100pF discharged through a 1.5kΩ resistor.
Note 5: Machine model: 220pF – 240pF discharged through all pins.
Note 6: Typical values are measured at 25°C and represent the parametric norm.
Note 7: Limits are guaranteed to Nationals AOQL (Average Outgoing Quality Level).
Note 8: Best operation is achieved by maintaining 3.0V < A_V
Note 9: Digital shutdown current is measured with system clock set for PLL output while the PLL is disabled.
Note 10: Disabling or bypassing the PLL will usually result in an improvement in noise measurements.
Note 11: Datasheet min/max specification limits are guaranteed by design, test, or statistical analysis.
Symbol
Digital Playback Mode Power
Dissipation
Analog Playback Mode Power
Dissipation
VOICE CODEC Mode Power
Dissipation
VOICE Module Mode Power Dissipation
DMAX
Parameter
= (T
JMAX
– T
A
)/ θ
JA
or the number given in Absolute Maximum Ratings, whichever is lower.
DD
SS
< 5.0 and 3.0V < D_V
DAC (f
f
f
f
AUX Inputs selected and HP ON
f
PCM DAC (f
and EP ON
f
CP IN selected. EP and CPOUT ON
f
pin unless otherwise specified. All grounds should be coupled as close as possible to the
MCLK
MCLK
PLLOUT
MCLK
MCLK
MCLK
= 12MHz, PLL OFF
= 13MHz, PLL ON
= 13MHz, PLL OFF
= 13MHz, PLL OFF
= 13MHz, PLL OFF
S
= 12MHz
= 48kHz) and HP ON
13
S
= 8kHz) + ADC (f
Conditions
DD
< 3.6V and A_V
MAX
DD
S
, θ
= 8kHz)
JA
> D_V
, and the ambient temperature, T
DD
.
(Note 6)
Typical
56
71
22
46
27
LM49370
(Notes 7,
Limit
11)
A
. The maximum
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Units
mW
mW
mW
mW
mW