LM4888SQBD National Semiconductor, LM4888SQBD Datasheet - Page 6

• Manufacturer Part Number: LM4888SQBD
• Description: BOARD EVALUATION LM4888SQ
• Manufacturer: National Semiconductor
• Series: Boomer®r

Specifications of LM4888SQBD

• Amplifier Type: Class AB
• Output Type: 2-Channel (Stereo) with Stereo Headphones
• Max Output Power X Channels @ Load: 3W x 2 @ 3 Ohm; 90mW x 2 @ 32 Ohm
• Voltage - Supply: 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Board Type: Fully Populated
• Utilized Ic / Part: LM4888
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

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P
THD+N
PSRR
X
V
Symbol
O
TALK
NO
Electrical Characteristics for Single-Ended Operation (3V)
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 operates within the Operating Ratings. Specifications are not guaranteed for parameters where
no limit is given. The typical value however, is a good indication of device performance.
Note 4: The maximum power dissipation must be derated at elevated temperatures and is dictated by T
allowable power dissipation is P
Note 5: Human body model, 100pF discharged through a 1.5kΩ resistor.
Note 6: Machine model, 200pF–220pF discharged through all pins.
Note 7: All voltages are measured with respect to the ground (GND) pins, unless otherwise specified.
Note 8: Typicals are specified at 25˚C and represent the parametric norm.
Note 9: Datasheet min/max specification limits are guaranteed by design, test, or statistical analysis.
Note 10: The quiescent power supply current depends on the offset voltage when a practical load is connected to the amplifier.
Note 11: Output power is measured at the device terminals.
Note 12: When driving 3Ω or 4Ω loads and operating on a 5V supply, the LM4888SQ must be mounted to a circuit board that has a minimum of 2.5in
uninterrupted copper area connected to the SQ package’s exposed DAP.
Note 13: All measurements taken from Applications Diagram (Figure 1).
The following specifications apply for V
Output Power
Total Harmonic Distortion+Noise
Power Supply Rejection Ratio
Channel Separation
Output Noise Voltage
Parameter
DMAX
= (T
JMAX
− T
DD
A
)/θ
= 3V unless otherwise specified. Limits apply for T
THD+N = 0.5%, f = 1 kHz, R
P
Input Unterminated, 217Hz
V
C
Input Unterminated, 1kHz
V
C
Input grounded, 217Hz
V
C
Input grounded, 1kHz
V
C
f = 1kHz, C
1kHz, A-weighted
JA
O
ripple
ripple
ripple
ripple
6
6
6
6
. For the LM4888SQ, T
= 1µF, R
= 1µF, R
= 1µF, R
= 1µF, R
= 25mW, 1kHz, R
= 200mV
= 200mV
= 200mV
= 200mV
L
L
L
L
6
= 32Ω
= 32Ω
= 32Ω
= 32Ω
= 1.0µF, 3D Control = Low
p-p
p-p
p-p
p-p
Conditions
6
JMAX
L
= 32Ω
= 150˚C.
L
= 32Ω
JMAX
, θ
JA
, and the ambient temperature T
A
= 25˚C.
(Note 8)
Typical
(Notes 3, 7, 13)
.015
35
71
79
65
72
80
11
LM4888
(Note 9)
Limit
A
. The maximum
2
of exposed,
(Limits)
Units
mW
dB
dB
dB
dB
dB
µV
%