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參數(shù)資料
| 型號(hào)： | LM4913MH/NOPB |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 0.09 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO10 |
| 封裝： | TSSOP-10 |
| 文件頁數(shù)： | 14/18頁 |
| 文件大?。?/td> | 1078K |
| 代理商： | LM4913MH/NOPB |
Electrical Characteristics: Bridged-Mode Operation (V
DD = 3V)
(Notes 4, 9)
The following specifications apply for the circuit shown in Figure 1, R
L = 4, and a measurement bandwidth of 20Hz to 80kHz,
unless otherwise specified. Limits apply for T
A = 25°C.
Symbol
Parameter
Conditions
LM4913
Units
(Limits)
Typical
Limit
(Note 9)
(Notes 10, 11)
P
O
Output Power (Note 11)
THD = 1% (max); f = 1kHz (Note 12)
R
L = 4 (THD = 0.1%)
660
W
THD+N
Total Harmonic Distortion + Noise
f = 1kHz
R
L = 4, PO = 500mW
0.2
%
V
ON
Output Voltage Noise
C
B = 0.47F, 20Hz < f < 20kHz
21
V
RMS
Electrical Characteristics: SE Operation (V
DD = 3V)
(Notes 4, 9)
The following specifications apply for the circuit shown in Figure 1, R
L = 4, and a measurement bandwidth of 20Hz to 80kHz,
unless otherwise specified. Limits apply for T
A = 25°C.
Symbol
Parameter
Conditions
LM4913
Units
(Limits)
Typical
Limit
(Note 9)
(Notes 10, 11)
P
O
Output Power (Note 11)
THD+N = 0.1%, f = 1kHz, R
L = 32
33
30
mW
THD+N
Total Harmonic Distortion + Noise
f = 1kHz
R
L =32, PO = 30mW
0.1
%
V
ON
Output Voltage Noise
C
B = 0.47F, 20Hz < f < 20kHz
12
V
RMS
Note 2:
An LM4913MH that has been properly mounted to a circuit board with a copper heatsink area of at least 2in2 will deliver 2.1W into 4
.
Note 3:
All voltages are measured with respect to the ground pin, unless otherwise specified.
Note 4:
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 5:
The maximum power dissipation must be derated at elevated temperatures and is dictated by T
JMAX, θJA, and the ambient temperature TA. The maximum
allowable power dissipation is P
DMAX = (TJMAX–TA)/θJA or the number given in Absolute Maximum Ratings, whichever is lower. For the LM4913, see power derating
curves for additional information.
Note 6:
Human body model, 100pF discharged through a 1.5k
resistor.
Note 7:
Machine Model, 220pF–240pF discharged through all pins.
Note 8:
The given
θ
JA is for an LM4913 packaged in an MXF10A with the Exposed-DAP soldered to an exposed 2in
2
area of 1oz printed circuit board copper.
Note 9:
Typicals are measured at 25°C and represent the parametric norm.
Note 10:
Limits are guaranteed to National's AOQL (Average Outgoing Quality Level).
Note 11:
Datasheet minimum and maximum specification limits are guaranteed by design, test, or statistical analysis.
Note 12:
Output power is measured at the amplifier's package pins.
Note 13:
When driving 4
loads and operating on a 5V supply, the LM4913MH must be mounted to a circuit board that has a minimum of 2.5in2 of exposed,
uninterrupted copper area connected to the MH package's exposed DAP.
Note 14:
See Application Information section "Single-Ended Output Power Performance and Measurement Considerations" for more information.
5
www.national.com
LM4913
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