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参数资料
| 型号： | LM4919MM/NOPB |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 0.014 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO10 |
| 封装： | MSOP-10 |
| 文件页数： | 10/15页 |
| 文件大小： | 568K |
| 代理商： | LM4919MM/NOPB |
Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage
3.6V
Storage Temperature
65C to +150C
Input Voltage
0.3V to V
DD +0.3V
Power Dissipation (Note 2)
Internally limited
2000V
ESD Susceptibility (Note 4)
200V
Junction Temperature
150C
Thermal Resistance
θ
JA (typ) MUB10A
175C/W
Operating Ratings
Temperature Range
T
MIN
≤ T
A
≤ T
MAX
40C
≤ T
A
≤ 85C
Supply Voltage
0.9V
≤ V
DD
≤ 2.5V
Electrical Characteristics for the LM4919 (Notes 1, 5)
The following specifications apply for the circuit shown in Figure 4 operating with V
DD = 1. 5V, unless otherwise
specified. Limits apply for T
A = 25C.
Symbol
Parameter
Conditions
LM4919
Units
(Limits)
Typical
Limit
V
DD
Supply Voltage (Notes 10, 11)
0.9
V (min)
2.5
V (max)
I
DD
Quiescent Power Supply Current
V
IN = 0V, IO = 0A, RL = ∞ (Note 8)
0.9
1.4
mA (max)
I
SD
Shutdown Current
V
SHUTDOWN = GND
0.02
A
V
OS
Output Offset Voltage
BTL
5
50
mV (max)
P
O
Output Power (Note 9)
f = 1kHz
R
L =8
BTL, THD+N = 1%
85
70
mW (min)
R
L =16
SE, THD+N = 1%
14
mW (min)
THD+N
Total Harmonic Distortion + Noise
R
L =8
, BTL, P
O = 25mW, f = 1kHz
0.2
0.5
% (max)
R
L =16
, SE, P
O = 5mW, f = 1kHz
0.07
V
NO
Output Voltage Noise
20Hz to 20kHz, A-weighted SE
10
V
RMS
20Hz to 20kHz, A-weighted BTL
15
V
RMS
I
MUTE
Mute Current
V
MUTE =0,SE
15
A
Crosstalk
R
L =16
,SE
55
dB
PSRR
Power Supply Rejection Ratio
V
RIPPLE = 200mVP-P
C
BYPASS = 4.7F, RL =8
f = 1kHz, BTL
70
dB
V
RIPPLE = 200mVP-P sine wave
C
BYPASS = 4.7F, RL =16
f = 1kHz, SE
72
dB
V
IH
Control Logic High
0.9
V
IL
Control Logic Low
0.3
V
Note 1: 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 2: The maximum power dissipation is dictated by TJMAX, θJA, and the ambient temperature TA and must be derated at elevated temperatures. The maximum
allowable power dissipation is PDMAX =(TJMAX TA)/θJA. For the LM4919, TJMAX = 150C. For the θJAs, please see the Application Information section or the
Absolute Maximum Ratings section.
Note 3: Human body model, 100pF discharged through a 1.5k
resistor.
Note 4: Machine model, 220pF–240pF discharged through all pins.
Note 5: All voltages are measured with respect to the ground (GND) pins unless otherwise specified.
Note 6: Typicals are measured at 25C and represent the parametric norm.
Note 7: Datasheet min/max specification limits are guaranteed by design, test, or statistical analysis.
Note 8: The quiescent power supply current depends on the offset voltage when a practical load is connected to the amplifier.
Note 9: Output power is measured at the device terminals.
LM4919
www.national.com
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