* Not recommended for new designs. Contact NSC Audio Marketing.
www.national.com
2
LM4863
Absolute Maximum Ratings
(Note 3)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage
Storage Temperature
Input Voltage
Power Dissipation (Note 4)
ESD Susceptibility(Note 5)
ESD Susceptibility (Note 6)
Junction Temperature
Solder Information
Small Outline Package
Vapor Phase (60 sec.)
Infrared (15 sec.)
215˚C
220˚C
6.0V
−65˚C to +150˚C
−0.3V to V
DD
+0.3V
Internally limited
2000V
200V
150˚C
θ
JC
(typ) — M16B
θ
JA
(typ) — M16B
θ
JC
(typ) — N16A
*
θ
JA
(typ) — N16A
*
20˚C/W
80˚C/W
20˚C/W
63˚C/W
20˚C/W
80˚C/W
2˚C/W
41˚C/W (Note 7)
51˚C/W (Note 8)
90˚C/W(Note 9)
3.0˚C/W
42˚C/W (Note 10)
θ
JC
(typ) — MTC20
θ
JA
(typ) — MTC20
θ
JC
(typ) — MXA20A
θ
JA
(typ) — MXA20A
θ
JA
(typ) — MXA20A
θ
JA
(typ) — MXA20A
θ
JC
(typ) — LQ24A
θ
JA
(typ) — LQ24A
* Not recommended for new designs. Contact NSC Audio
Marketing.
Operating Ratings
Temperature Range
T
MIN
≤
T
A
≤
T
MAX
Supply Voltage
−40˚C
≤
T
A
≤
85˚C
2.0V
≤
V
DD
≤
5.5V
See AN-450 “Surface Mounting and their Effects on
Product Reliablilty” for other methods of soldering
surface mount devices.
Thermal Resistance
Electrical Characteristics for Entire IC
(Notes 3, 11)
The following specifications apply for V
DD
= 5V unless otherwise noted. Limits apply for T
A
= 25˚C.
Symbol
Parameter
Conditions
LM4863
Typical
(Note 12)
V
DD
I
DD
Supply Voltage
Quiescent Power Supply Current
V
IN
= 0V, I
O
= 0A (Note 14), HP-IN = 0V
V
IN
= 0V, I
O
= 0A (Note 14), HP-IN = 4V
I
SD
V
IH
V
IL
Shutdown Current
Headphone High Input Voltage
Headphone Low Input Voltage
V
DD
applied to the SHUTDOWN pin
11.5
5.8
0.7
2
4
0.8
Limit
(Note 13)
2
5.5
20
6
V (min)
V (max)
mA (max)
mA (min)
mA
µA (max)
V (min)
V (max)
Units
(Limits)
Electrical Characteristics for Bridged-Mode Operation
(Notes 3, 11)
The following specifications apply for V
DD
= 5V unless otherwise specified. Limits apply for T
A
= 25˚C.
Symbol
Parameter
Conditions
LM4863
Typical
(Note 12)
V
OS
P
O
Output Offset Voltage
Output Power (Note 15)
V
IN
= 0V
THD+N = 1%, f = 1kHz (Note 16)
LM4863MTE, R
L
= 3Ω
LM4863LQ, R
L
= 3Ω
LM4863MTE, R
L
= 4Ω
LM4863LQ, R
L
= 4Ω
LM4863, R
L
= 8Ω
THD+N = 10%, f = 1kHz (Note 16)
LM4863MTE, R
L
= 3Ω
LM4863LQ, R
L
= 3Ω
3.2
3.2
W
W
5
2.5
2.5
2.2
2.2
1.1
1.0
Limit
(Note 13)
50
Units
(Limits)
mV (max)
W
W
W
W
W (min)
3
www.national.com
LM4863
Electrical Characteristics for Bridged-Mode Operation
(Notes 3, 11)
The following specifications apply for V
DD
= 5V unless otherwise specified. Limits apply for T
A
= 25˚C.
Symbol
Parameter
Conditions
LM4863
Typical
(Note 12)
LM4863MTE, R
L
= 4Ω
LM4863LQ, R
L
= 4Ω
LM4863, R
L
= 8Ω
THD+N = 1%, f = 1kHz, R
L
= 32Ω
THD+N
Total Harmonic Distortion+Noise
20Hz
≤
f
≤
20kHz, A
VD
= 2
LM4863MTE, R
L
= 4Ω, P
O
= 2W
LM4863LQ, R
L
= 4Ω, P
O
= 2W
LM4863, R
L
= 8Ω, P
O
= 1W
PSRR
X
TALK
SNR
Power Supply Rejection Ratio
Channel Separation
Signal To Noise Ratio
V
DD
= 5V, V
RIPPLE
= 200mV
RMS
, R
L
= 8Ω,
C
B
= 1.0µF
f = 1kHz, C
B
= 1.0µF
V
DD
= 5V, P
O
= 1.1W, R
L
= 8Ω
2.7
2.7
1.5
0.34
0.3 0.3
(Continued)
Units
(Limits)
Limit
(Note 13)
W
W
W
W
%
0.3
67
90
98
%
dB
dB
dB
Electrical Characteristics for Single-Ended Operation
(Notes 3, 4)
The following specifications apply for V
DD
= 5V unless otherwise specified. Limits apply for T
A
= 25˚C.
Symbol
Parameter
Conditions
LM4863
Typical
(Note 12)
V
OS
P
O
Output Offset Voltage
Output Power
V
IN
= 0V
THD+N = 0.5%, f = 1kHz, R
L
= 32Ω
THD+N = 1%, f = 1kHz, R
L
= 8Ω
THD+N = 10%, f = 1kHz, R
L
= 8Ω
THD+N
PSRR
X
TALK
SNR
Total Harmonic Distortion+Noise
Power Supply Rejection Ratio
Channel Separation
Signal To Noise Ratio
A
V
= −1, P
O
= 75mW, 20Hz
≤
f
≤
20kHz,
R
L
= 32Ω
C
B
= 1.0µF, V
RIPPLE
= 200mV
f = 1kHz
f = 1kHz, C
B
= 1.0µF
V
DD
= 5V, P
O
= 340mW, R
L
= 8Ω
RMS
,
Limit
(Note 13)
50
75
Units
(Limits)
5
85
340
440
0.2
52
60
95
mV (max)
mW (min)
mW
mW
%
dB
dB
dB
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
JMAX
,
θ
JA
, and the ambient temperature T
A
and must be derated at elevated temperatures. The maximum
allowable power dissipation is P
DMAX
= (T
JMAX
− T
A
)/θ
JA
. For the LM4863, T
JMAX
= 150˚C. For the
θ
JA
s for different packages, please see the Application
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
JA
is for an LM4863 packaged in an MXA20A with the exposed−DAP soldered to an exposed 2in
2
area of 1oz printed circuit board copper.
Note 8:
The given
θ
JA
is for an LM4863 packaged in an MXA20A with the exposed−DAP soldered to an exposed 1in
2
area of 1oz printed circuit board copper.
Note 9:
The given
θ
JA
is for an LM4863 packaged in an MXA20A with the exposed-DAP not soldered to printed circuit board copper.
Note 10:
The given
θ
JA
is for an LM4863 packaged in an LQA24A with the exposed−DAP soldered to an exposed 2in
2
area of 1oz printed circuit board copper.
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
2
of exposed, uninterrupted copper area connected to the LLP package’s exposed DAP.
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