lm48311tlx National Semiconductor Corporation, lm48311tlx Datasheet - Page 5

• Manufacturer Part Number: lm48311tlx
• Description: Ultra-low Emi, Filterless, 2.6w, Mono, Class D Audio Power Amplifier With E2s
• Manufacturer: National Semiconductor Corporation

PSRR
CMRR
η
SNR
ε
Symbol
OS
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 Conditionsindicate 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.
Note 8: R
is 15µH + 4Ω + 15µH.
L
Power Supply Rejection Ratio
(Input Referred)
Common Mode Rejection Ratio
(Input Referred)
Efficiency
Signal to Noise Ratio
Output Noise
(Input Referred)
is a resistive load in series with two inductors to simulate an actual speaker load. For R
Parameter
DMAX
= (T
JMAX
- T
A
) / θ
JA
or the number given in Absolute Maximum Ratings, whichever is lower.
V
Inputs AC GND, C
f
f
V
f
V
V
P
Un-weighted
A-weighted
RIPPLE
RIPPLE
RIPPLE
RIPPLE
RIPPLE
DD
DD
O
FIGURE 3. CMRR Test Circuit
FIGURE 2. PSRR Test Circuit
= 1W
= 5V, P
= 3.6V, P
= 217Hz
= 1kHz
= 217Hz
= 200mV
= 1V
A
= +25°C, and at the Recommended Operation Conditions at the time of product
Conditions
OUT
P-P
OUT
= 1W
P-P
5
= 400mW
IN
Sine,
= 1μF
L
= 8Ω, the load is 15µH + 8Ω, +15µH. For R
30097528
JMAX
30097527
(Note 7)
, θ
Min
JA
, and the ambient temperature, T
LM48311
(Note 6)
Typ
78
76
86
88
85
97
28
22
(Note 7)
Max
A
L
. The maximum
www.national.com
= 4Ω, the load
(Limits)
Units
dB
dB
dB
dB
μV
μV
%
%