lm4863mtx National Semiconductor Corporation, lm4863mtx Datasheet - Page 4

• Manufacturer Part Number: lm4863mtx
• Description: Dual 2.2w Audio Amplifier Plus Stereo Headphone Function
• Manufacturer: National Semiconductor Corporation

www.national.com
THD+N
PSRR
X
SNR
V
P
THD+N
PSRR
X
SNR
Symbol
Symbol
TALK
OS
O
TALK
Electrical Characteristics for Bridged-Mode Operation
The following specifications apply for V
Electrical Characteristics for Single-Ended Operation
The following specifications apply for V
Note 3: 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. Electrical 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 4: The maximum power dissipation is dictated by T
allowable power dissipation is P
Information section or the Absolute Maximum Ratings section.
Note 5: Human body model, 100 pF discharged through a 1.5kΩ resistor.
Note 6: Machine model, 220pF – 240pF discharged through all pins.
Note 7: The given θ
Note 8: The given θ
Note 9: The given θ
Note 10: The given θ
Note 11: All voltages are measured with respect to the ground (GND) pins unless otherwise specified.
Note 12: Typicals are measured at 25˚C and represent the parametric norm.
Note 13: Limits are guaranteed to National’s AOQL (Average Outgoing Quality Level).
Note 14: The quiescent power supply current depends on the offset voltage when a practical load is connected to the amplifier.
Note 15: Output power is measured at the device terminals.
Note 16: When driving 3Ω or 4Ω and operating on a 5V supply, the LM4863LQ and LM4863MTE must be mounted to the circuit board that has a minimum of 2.5in
of exposed, uninterrupted copper area connected to the LLP package’s exposed DAP.
Total Harmonic Distortion+Noise
Power Supply Rejection Ratio
Channel Separation
Signal To Noise Ratio
Output Offset Voltage
Output Power
Total Harmonic Distortion+Noise
Power Supply Rejection Ratio
Channel Separation
Signal To Noise Ratio
JA
JA
JA
JA
is for an LM4863 packaged in an MXA20A with the exposed−DAP soldered to an exposed 2in
is for an LM4863 packaged in an MXA20A with the exposed−DAP soldered to an exposed 1in
is for an LM4863 packaged in an MXA20A with the exposed-DAP not soldered to printed circuit board copper.
is for an LM4863 packaged in an LQA24A with the exposed−DAP soldered to an exposed 2in
Parameter
Parameter
DMAX
= (T
JMAX
− T
DD
DD
= 5V unless otherwise specified. Limits apply for T
= 5V unless otherwise specified. Limits apply for T
A
)/θ
THD+N = 1%, f = 1kHz, R
20Hz ≤ f ≤ 20kHz, A
V
C
f = 1kHz, C
V
V
THD+N = 0.5%, f = 1kHz, R
THD+N = 1%, f = 1kHz, R
THD+N = 10%, f = 1kHz, R
A
R
C
f = 1kHz
f = 1kHz, C
V
JMAX
JA
DD
B
DD
IN
V
L
B
DD
. For the LM4863, T
= 32Ω
= 1.0µF
= −1, P
= 1.0µF, V
= 0V
, θ
LM4863, R
LM4863MTE, R
LM4863LQ, R
LM4863, R
= 5V, V
= 5V, P
= 5V, P
JA
, and the ambient temperature T
O
B
B
RIPPLE
O
O
= 75mW, 20Hz ≤ f ≤ 20kHz,
= 1.0µF
= 1.0µF
RIPPLE
= 1.1W, R
= 340mW, R
L
L
Conditions
Conditions
= 8Ω
= 8Ω, P
L
4
JMAX
= 200mV
L
= 4Ω, P
VD
= 200mV
= 4Ω, P
= 2
= 150˚C. For the θ
L
O
L
L
= 8Ω
= 1W
L
L
= 32Ω
O
= 8Ω
L
RMS
= 8Ω
= 8Ω
O
= 32Ω
= 2W
RMS
= 2W
, R
A
and must be derated at elevated temperatures. The maximum
,
L
= 8Ω,
JA
s for different packages, please see the Application
(Notes 3, 4)
(Note 12)
(Note 12)
(Notes 3, 11) (Continued)
Typical
Typical
0.3 0.3
A
A
2
2
2
= 25˚C.
0.34
= 25˚C.
340
440
1.5
0.3
0.2
area of 1oz printed circuit board copper.
area of 1oz printed circuit board copper.
67
90
98
85
52
60
95
area of 1oz printed circuit board copper.
5
LM4863
LM4863
(Note 13)
(Note 13)
Limit
Limit
50
75
mV (max)
mW (min)
(Limits)
(Limits)
Units
Units
mW
mW
dB
dB
dB
dB
dB
dB
W
W
%
%
%
2