If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage (Note 1)
Storage Temperature
Voltage at Any Input Pin
Power Dissipation (Note 3)
ESD Susceptibility (Note 4)
ESD Susceptibility (Note 5)
Junction Temperature (T
J
)
Thermal Resistance
θ
JA
(MSOP)
190˚C/W
6.0V
−65˚C to +150˚C
V
DD
+ 0.3V
≥
V
≥
GND - 0.3V
Internally Limited
2.0kV
200V
150˚C
Operating Ratings
(Note 2)
Temperature Range
T
MIN
≤
T
A
≤
T
MAX
Supply Voltage (MSOP & LD)
Supply Voltage (ITL) (Note11)
−40˚C
≤
T
A
≤
85˚C
2.7V
≤
V
DD
≤
5.5V
2.7V
≤
V
DD
≤
3.8V
Electrical Characteristics V
DD
= 5V
The following specifications apply for V
DD
wise specified. Limits apply for T
A
= 25˚C.
(Notes 1, 2, 11)
= 5V, R
L
= 8Ω + 33µH, measurement bandwidth is
<
10Hz - 22kHz unless other-
LM4665
Symbol
I
DD
I
SD
V
SDIH
V
SDIL
V
SDIH
V
SDIL
V
GSIH
V
GSIL
A
V
A
V
V
OS
T
WU
P
o
THD+N
R
IN
PSRR
Parameter
Quiescent Power Supply Current
Shutdown Current
Shutdown Voltage Input High
Shutdown Voltage Input Low
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
Differential Input Resistance
Power Supply Rejection Ratio
THD+N = 3% (max), f
IN
= 1kHz
P
O
= 400mW
RMS
, f
IN
= 1kHz
V
Gain
V
Gain
Select
Select
Conditions
V
IN
= 0V, No Load
V
IN
= 0V, 8Ω + 22µH Load
V
SD
= V
SD
V
SD
V
SD
V
SD
V
SD
Mode
Mode
Mode
Mode
Mode
Typical
(Note 6)
14
14.5
0.1
1.2
1.1
1.2
1.1
1.2
1.1
Limit
(Notes 7, 8)
Units
(Limits)
mA
mA
(Note 9)
5.0
1.4
0.4
1.4
0.4
1.4
0.4
5.5
6.5
11.5
12.5
µA (max)
V (min)
V (max)
V (min)
V (max)
V (min)
V (max)
dB (min)
dB (max)
dB (min)
dB (max)
mV
ms
W
%
kΩ
kΩ
dB
= V
DD
= V
DD
= GND
= GND
V
Gain
V
Gain
Select
= V
DD
= GND
6
12
10
5
1.4
0.8
100
65
52
Select
= V
DD
, Gain = 6dB
= GND, Gain = 12dB
V
Ripple
= 100mV
RMS
,
f
Ripple
= 217Hz, A
V
= 6dB
Inputs Terminated
V
Ripple
= 100mV
RMS
,
f
Ripple
= 217Hz, A
V
= 6dB
A-Weighted filter, V
IN
= 0V
CMRR
e
N
Common Mode Rejection Ratio
Output Noise Voltage
43
350
dB
µV
3
www.national.com
LM4665
Electrical Characteristics V
DD
= 3V
(Notes 1, 2)
The following specifications apply for V
DD
= 3V, and R
L
= 8Ω + 33µH, measurement bandwidth is
<
10Hz - 22kHz unless oth-
erwise specified. Limits apply for T
A
= 25˚C.
LM4665
Symbol
I
DD
I
SD
V
SDIH
V
SDIL
V
SDIH
V
SDIL
V
GSIH
V
GSIL
A
V
A
V
V
OS
T
WU
P
o
THD+N
R
IN
Parameter
Quiescent Power Supply Current
Shutdown Current
Shutdown Voltage Input High
Shutdown Voltage Input Low
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
Differential Input Resistance
THD+N = 2% (max), f
IN
= 1kHz
P
O
= 100mW
RMS
, f
IN
= 1kHz
V
Gain
V
Gain
Select
Select
Conditions
V
IN
= 0V, No Load
V
IN
= 0V, 8Ω + 22µH Load
V
SD
= V
SD
V
SD
V
SD
V
SD
V
SD
Mode
Mode
Mode
Mode
Mode
Typical
(Note 6)
3.0
3.5
0.01
1.0
0.8
1.0
0.8
1.0
0.8
Limit
(Notes 7, 8)
7.0
5.0
1.4
0.4
1.4
0.4
1.4
0.4
5.5
6.5
11.5
12.5
Units
(Limits)
mA (max)
mA
µA (max)
V (min)
V (max)
V (min)
V (max)
V (min)
V (max)
dB (min)
dB (max)
dB (min)
dB (max)
mV
ms
(Note 9)
= V
DD
= V
DD
= GND
= GND
V
Gain
V
Gain
Select
= V
DD
= GND
6
12
10
5
400
0.4
100
65
52
Select
350
mW (min)
% (max)
kΩ
kΩ
dB
= V
DD
, Gain = 6dB
= GND, Gain = 12dB
PSRR
Power Supply Rejection Ratio
V
Ripple
= 100mV
RMS
,
f
Ripple
= 217Hz, A
V
= 6dB,
Inputs Terminated
V
Ripple
= 100mV
RMS
,
f
Ripple
= 217Hz, A
V
= 6dB
A-Weighted filter, V
IN
= 0V
CMRR
e
N
Common Mode Rejection Ratio
Output Noise Voltage
39
350
dB
µV
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
JMAX
,
θ
JA
, and the ambient temperature T
A
. The maximum
allowable power dissipation is P
DMAX
= (T
JMAX
–T
A
)/θ
JA
or the number given in Absolute Maximum Ratings, whichever is lower. For the LM4665, T
JMAX
= 150˚C.
See the
Efficiency and Power Dissipation versus Output Power
curves for more information.
Note 4:
Human body model, 100 pF discharged through a 1.5 kΩ resistor.
Note 5:
Machine Model, 220 pF–240 pF 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
SD
by a maximum of 2µA. The Shutdown Mode pin
should be connected to V
DD
or GND and the Shutdown pin should be driven as close as possible to V
DD
or GND for minimum shutdown current and the best THD
performance in PLAY mode. See the
Application Information
section under SHUTDOWN FUNCTION for more information.
Note 10:
The exposed-DAP of the LDA10B package should be electrically connected to GND.
Note 11:
The LM4665 in the micro SMD package (ITL) has an operating range of 2.7V - 3.8V for 8Ω speaker loads. The supply range may be increased as speaker
impedance is increased. It is not recommended that 4Ω loads be used with the micro SMD package. To increase the supply voltage operating range, see Figure 2
and INCREASING SUPPLY VOLTAGE RANGE in the
Application Information
section for more information.
External Components Description
(Figure
1)
Components
1.
C
S
Functional Description
Supply bypass capacitor which provides power supply filtering. Refer to the
Power Supply Bypassing
section for information concerning proper placement and selection of the supply bypass capacitor.
