參數(shù)資料
型號(hào)： LM4980SD
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 音頻／視頻放大
英文描述： 2 Cell Battery, 1mA, 42mW Per Channel High Fidelity Stereo Headphone Audio Amplifier for MP3 players
中文描述： 0.042 W, 2 CHANNEL, AUDIO AMPLIFIER, DSO10
封裝： LLP-10
文件頁(yè)數(shù)： 5/20頁(yè)
文件大小： 1324K
代理商： LM4980SD
Electrical Characteristics V
DD
= 1.8V
(Notes 1, 5) (Continued)
The following specifications apply for the circuit shown in Figure 2, unless otherwise specified. A
V
= 0dB, R
L
= 32
.
Limits apply for T
A
= 25C.
Symbol
Parameter
Conditions
LM4980
Units
(Limits)
Typical
(Note 6)
Limit
(Note 7)
P
O
Output Power (Note 9)
R
L
= 16
,
THD+N = 1%, f = 1kHz, per channel
R
L
= 32
,
THD+N = 1%, f = 1kHz, per channel
20Hz to 20kHz, A-weighted, Fig. 2
R
L
= 32
, P
OUT
= 10mW, f = 1kHz
Freq = 1kHz, P
OUT
= 9mW, R
L
= 32
V
RIPPLE
= 200mV
P-P
sine wave
f
RIPPLE
= 1kHz, C
MIDCAP
= 4.7μF,
V
MID
Voltage is Ripple-Free
V
RIPPLE
= 200mV
P-P
sine wave
f
RIPPLE
= 217Hz, C
MIDCAP
= 4.7μF,
V
MID
Voltage is Ripple-Free
Input coupling capacitors with 5%
tolerance, V
IN
= V
MID
,
f
RIPPLE
= 1kHz
C
MIDCAP
= 4.7μF, Fig 2.
1.5V
≤
V
DD
≤
3.3V
1.5V
≤
V
DD
≤
3.3V
11
mW (min)
9
mW (min)
V
NO
THD+N
Crosstalk
Output Voltage Noise
Total Harmonic Distortion + Noise
9
μV
RMS
%
dB
0.03
79
PSRR
Power Supply Rejection Ratio
78
dB
85
dB
CMRR
Common-Mode Rejection Ratio
47
dB
T
WAKE-UP
V
IH
V
IL
Wake-up Time
Control Logic High
Control Logic Low
320
ms
1.4V
0.4V
V (min)
V (max)
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 andAC 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 T
JMAX
,
θ
JA
, and the ambient temperature T
A
must be derated at elevated temperatures. The maximum
allowable power dissipation is P
DMAX
= (T
JMAX
T
A
) /
θ
JA
JMAX
= 150C. For the
θ
JA
s, 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, 200pF – 220pF 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.
L
www.national.com
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM4980SD/NOPB 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
LM4980SDBD 功能描述:音頻 IC 開(kāi)發(fā)工具 LM4980 EVAL BOARD RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評(píng)估:TAS5614L 工作電源電壓:12 V to 38 V
LM4980SDX 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
LM4980SDX/NOPB 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
LM4981 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Ground-Referenced, 80mW Stereo Headphone Amplifier with Digital Volume Control
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