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参数资料
| 型号： | LM4901LD/NOPB |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 1.6 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO10 |
| 封装： | LLP-10 |
| 文件页数： | 16/21页 |
| 文件大小： | 1281K |
| 代理商： | LM4901LD/NOPB |
Electrical Characteristics V
The following specifications apply for the circuit shown in Figure 1, unless otherwise specified. Limits apply for T
A =
25C. (Continued)
Symbol
Parameter
Conditions
LM4901
Units
(Limits)
Typical
Limit
(Notes 7, 8)
P
o
Output Power (8
)
THD = 1% (max);f=1kHz
390
mW
(4
)
THD = 1% (max);f=1kHz
525
mW
T
WU
Wake-up time
75
mS (max)
THD+N
Total Harmonic Distortion + Noise
P
o = 0.25 Wrms; f = 1kHz
0.1
%
PSRR
Power Supply Rejection Ratio
V
ripple = 200mV sine p-p
Input terminated with 10
62 (f =
217Hz)
68 (f = 1kHz)
55
dB (min)
Electrical Characteristics V
DD = 2.6V
(Notes 1, 2)
The following specifications apply for the circuit shown in Figure 1, unless otherwise specified. Limits apply for T
A = 25C.
Symbol
Parameter
Conditions
LM4901
Units
(Limits)
Typical
Limit
(Notes 7, 8)
I
DD
Quiescent Power Supply Current
V
IN = 0V, Io = 0A, No Load
2.0
mA (max)
V
IN = 0V, Io = 0A, 8
Load
3.0
mA (max)
I
SD
Shutdown Current
V
SD =VSD Mode
0.1
A (max)
V
SDIH
Shutdown Voltage Input High
V
SD MODE =VDD
1.0
V (min)
V
SDIL
Shutdown Voltage Input Low
V
SD MODE =VDD
0.9
V (max)
V
SDIH
Shutdown Voltage Input High
V
SD MODE = GND
1.2
V (min)
V
SDIL
Shutdown Voltage Input Low
V
SD MODE = GND
1.0
V (max)
V
OS
Output Offset Voltage
5
50
mV (max)
R
OUT
Resistor Output to GND (Note 9)
8.5
9.7
k
(max)
7.0
k
(min)
P
o
Output Power ( 8
)
THD = 1% (max);f=1kHz
275
mW
(4
)
THD = 1% (max);f=1kHz
340
T
WU
Wake-up time
70
mS (max)
THD+N
Total Harmonic Distortion + Noise
P
o = 0.15 Wrms; f = 1kHz
0.1
%
PSRR
Power Supply Rejection Ratio
V
ripple = 200mV sine p-p
Input terminated with 10
51 (f =
217Hz)
51 (f = 1kHz)
dB (min)
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 TJMAX, θJA, and the ambient temperature TA. The maximum
allowable power dissipation is PDMAX =(TJMAX–TA)/θJA or the number given in Absolute Maximum Ratings, whichever is lower. For the LM4901, see power derating
curves for additional information.
Note 4: Human body model, 100 pF discharged through a 1.5 k
resistor.
Note 5: Machine Model, 220 pF–240 pF discharged through all pins.
Note 6: Typicals are measured at 25C and represent the parametric norm.
Note 7: 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: RROUT is measured from the output pin to ground. This value represents the parallel combination of the 10k output resistors and the two 20k resistors.
Note 10: If the product is in Shutdown mode and VDD exceeds 6V (to a max of 8V VDD), then most of the excess current will flow through the ESD protection circuits.
If the source impedance limits the current to a max of 10mA, then the device will be protected. If the device is enabled when VDD is greater than 5.5V and less than
6.5V, no damage will occur, although operation life will be reduced. Operation above 6.5V with no current limit will result in permanent damage.
Note 11: Maximum power dissipation in the device (PDMAX) occurs at an output power level significantly below full output power. PDMAX can be calculated using
Equation 1 shown in the Application Information section. It may also be obtained from the power dissipation graphs.
LM4901
www.national.com
4
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| LM4901MM/NOPB | 功能描述:IC AMP AUDIO PWR 1.6W AB 10MSOP RoHS:是 类别:集成电路 (IC) >> 线性 - 音頻放大器 系列:Boomer® 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:DirectDrive® 类型:H 类 输出类型:耳机，2-通道（立体声） 在某负载时最大输出功率 x 通道数量:35mW x 2 @ 16 欧姆 电源电压:1.62 V ~ 1.98 V 特点:I²C，麦克风，静音，短路保护，音量控制 安装类型:表面贴装 供应商设备封装:25-WLP（2.09x2.09） 封装/外壳:25-WFBGA，WLCSP 包装:带卷 (TR) |
| LM4901MMBD | 功能描述:BOARD EVALUATION LM4901MM RoHS:否 类别:编程器，开发系统 >> 评估板 - 音频放大器 系列:Boomer® 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- |
| LM4901MMX | 功能描述:音频放大器 RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
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