LM4666SD National Semiconductor, LM4666SD Datasheet - Page 4

• Manufacturer Part Number: LM4666SD
• Description: IC AMP AUDIO 1.2W STER D 14LLP
• Manufacturer: National Semiconductor
• Series: Boomer®r
• Type: Class Dr

Specifications of LM4666SD

• Output Type: 2-Channel (Stereo)
• Max Output Power X Channels @ Load: 1.2W x 2 @ 8 Ohm
• Voltage - Supply: 2.8 V ~ 5.5 V
• Features: Depop, Differential Inputs, Short-Circuit Protection, Shutdown
• Mounting Type: Surface Mount
• Package / Case: 14-LLP
• For Use With: LM4666SDBD - BOARD EVALUATION LM4666SD
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LM4666SD/NOPB; LM4666SDTR

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I
I
V
V
V
V
A
A
V
T
P
THD+N
X
R
PSRR
CMRR
SNR
e
DD
SD
OUT
Symbol
WU
SDIH
SDIL
GSIH
GSIL
V
V
OS
o
TALK
IN
Electrical Characteristics V
The following specifications apply for V
25˚C.
Note 1: All voltages are measured with respect to the ground pin, unless otherwise specified.
Note 2: 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 3: The maximum power dissipation must be derated at elevated temperatures and is dictated by T
allowable power dissipation is P
The typical θ
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 specifications are specified at 25˚C and represent the parametric norm.
Note 7: Tested limits are guaranteed to National’s AOQL (Average Outgoing Quality Level).
Note 8: Datasheet min/max specification limits are guaranteed by design, test, or statistical analysis.
Note 9: Shutdown current is measured in a normal room environment. Exposure to direct sunlight will increase I
be driven as close as possible to GND for minimal shutdown current and to V
section under SHUTDOWN FUNCTION for more information.
Note 10: The performance graphs were taken using the Audio Precision AUX–0025 Switching Amplifier Measurement Filter in series with the LC filter on the demo
board.
Quiescent Power Supply Current
Shutdown Current
Shutdown Voltage Input High
Shutdown Voltage Input Low
Gain Select Input High
Gain Select Input Low
Closed Loop Gain
Closed Loop Gain
Output Offset Voltage
Wake-up Time
Output Power
Total Harmonic Distortion+Noise
Channel Separation
Differential Input Resistance
Power Supply Rejection Ratio
Common Mode Rejection Ratio
Signal to Noise Ratio
Output Noise
JA
is 63˚C/W and the typical θ
Parameter
DMAX
= (T
JMAX
JC
is 12˚C/W for the SDA package.
–T
DD
A
)/θ
JA
= 3V and R
or the number given in Absolute Maximum Ratings, whichever is lower. For the LM4666, T
DD
V
V
V
V
V
THD = 1% (max); f = 1kHz,
22kHz BW
P
f
Both channels in phase
P
V
V
V
f
Inputs terminated to AC GND
V
f
P
V
f
P
A-Weighted filter, V
IN
RIPPLE
RIPPLE
Ripple
IN
IN
SD
Gain Select
Gain Select
O
O
Gain Select
Gain Select
ripple
Ripple
OUT
Ripple
O
= 3V
= 1kHz, 22kHz BW,
= 100mW
= 100mW
= 400mW
= 0V, No Load
= 0V, R
= GND (Note 9)
= 10mW,1kHz
L
= 217Hz, Input referred
= 100mV
= 100mV
= 100mV
= 217Hz,
= 217Hz,
= 15µH + 8Ω + 15µH unless otherwise specified. Limits apply for T
= V
= GND
= V
= GND
L
(Notes 1, 2)
Conditions
DD
RMS
RMS
RMS
= 15µH + 8Ω + 15µH
DD
DD
4
RMS
for the best THD performance in PLAY mode. See the Application Information
RMS
RMS
/Channel,
, f = 1kHz
, A-Weighted Filter
in
sine wave,
,
sine wave,
= 0V
JMAX
, θ
SD
JA
(Note 6)
Typical
, and the ambient temperature T
by a maximum of 2µA. The Shutdown pin should
0.02
0.65
450
125
6.5
7.0
1.0
0.8
1.0
0.8
12
10
57
90
60
60
65
48
83
6
6
LM4666
(Notes 7, 8)
11.25
12.75
Limit
5.25
6.75
400
2.0
1.4
0.4
1.4
0.4
10
35
A
. The maximum
JMAX
mA (max)
mV (max)
mW (min)
µA (max)
dB (max)
dB (max)
dB (min)
dB (min)
(Limits)
V (max)
V (max)
V (min)
V (min)
Units
= 150˚C.
ms
kΩ
kΩ
dB
dB
dB
dB
dB
µV
%
A
=