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參數(shù)資料
| 型號： | LM4873MDC |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 1.1 W, 2 CHANNEL, AUDIO AMPLIFIER, UUC |
| 封裝： | DIE |
| 文件頁數(shù)： | 25/29頁 |
| 文件大?。?/td> | 1019K |
| 代理商： | LM4873MDC |
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Electrical Characteristics for Bridged-Mode Operation (Notes 3, 15) (Continued)
The following specifications apply for V
DD= 5V unless otherwise specified. Limits apply for TA= 25C.
Symbol
Parameter
Conditions
LM4873
Units
(Limits)
Typical
Limit
THD+N = 10%, f = 1kHz (Note 20)
LM4873MTE-1, R
L =3
3.0
W
LM4873LQ, R
L =3
3.0
W
LM4873MTE-1, R
L =4
2.6
W
LM4873LQ, R
L =4
2.6
W
LM4873, R
L =8
1.5
W
THD+N = 1%, f = 1kHz, R
L =32
0.34
W
THD+N
Total Harmonic Distortion+Noise
20Hz
≤ f ≤ 20kHz, A
VD =2
LM4873MTE-1, R
L =4
,P
O =2W
0.3
LM4873LQ, R
L =4
,P
O =2W
LM4873, R
L =8
,P
O = 1W
0.3
%
PSRR
Power Supply Rejection Ratio
V
DD = 5V, VRIPPLE = 200mVRMS,RL =8
,
C
B = 1.0F
67
dB
X
TALK
Channel Separation
f = 1kHz, C
B = 1.0F
80
dB
SNR
Signal To Noise Ratio
V
DD = 5V, PO = 1.1W, RL =8
97
dB
Electrical Characteristics for Single-Ended Operation (Notes 3, 15)
The following specifications apply for V
DD= 5V unless otherwise specified. Limits apply for TA= 25C.
Symbol
Parameter
Conditions
LM4873
Units
(Limits)
Typical
Limit
V
OS
Output Offset Voltage
V
IN = 0V
5
50
mV (max)
P
O
Output Power
THD+N = 0.5%, f = 1 kHz, R
L =32
85
75
mW (min)
THD+N = 1%, f = 1 kHz, R
L =8
340
mW
THD+N = 10%, f = 1 kHz, R
L =8
440
mW
THD+N
Total Harmonic Distortion+Noise
A
V = 1, PO = 75mW, 20Hz
≤ f ≤ 20kHz,
R
L =32
0.2
%
PSRR
Power Supply Rejection Ratio
C
B = 1.0F, VRIPPLE = 200mV RMS,
f = 1kHz
52
dB
X
TALK
Channel Separation
f = 1kHz, C
B = 1.0F
60
dB
SNR
Signal To Noise Ratio
V
DD = 5V, PO = 340mW, RL =8
94
dB
Note 3: 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 operates within the Operating Ratings. Specifications are not guaranteed for parameters where
no limit is given. The typical value however, is a good indication of device performance.
Note 4: The maximum power dissipation must be derated at elevated temperatures and is dictated by TJMAX, θ JA, and the ambient temperature TA. The maximum
allowable power dissipation is PDMAX =(TJMAX T A)/θJA. For the LM4873, TJMAX = 150C. For the θJAs for different packages, please see the Application
Information section or the Absolute Maximum Ratings section.
Note 5: Human body model, 100 pF discharged through a 1.5 k
resistor.
Note 6: Machine model, 220 pF–240 pF discharged through all pins.
Note 7: The given
θJA is for an LM4873 packaged in an MXA20A with the Exposed-DAP soldered to an exposed 2in2 area of 1oz printed circuit board copper.
Note 8: The given
θJA is for an LM4873 packaged in an MXA20A with the Exposed-DAP soldered to an exposed 1in2 area of 1oz printed circuit board copper.
Note 9: The given
θJA is for an LM4873 packaged in an MXA20A with the Exposed-DAP not soldered to printed circuit board copper.
Note 10: The given
θJA is for an LM4873 packaged in an MXA28A with the Exposed-DAP soldered to an exposed 2in2 area of 1oz printed circuit board copper.
Note 11: The given
θJA is for an LM4873 packaged in an MXA28A with the Exposed-DAP soldered to an exposed 1in2 area of 1oz printed circuit board copper.
Note 12: The given
θJA is for an LM4873 packaged in an MXA28A with the Exposed-DAP not soldered to printed circuit board copper.
Note 13: The given
θJA is for an LM4873 packaged in an LQA24A with the Exposed-DAP soldered to an exposed 2in2 area of 1oz printed circuit board copper.
Note 14: The
θJA is specified for an LM4873 packaged in a BLA20AAB or TLA20AAA with their four ground connections soldered to a 3in2, 1oz copper plane.
Note 15: All voltages are measured with respect to the ground (GND) pins, unless otherwise specified.
Note 16: Typicals are specified at 25C and represent the parametric norm.
Note 17: Datasheet min/max specification limits are guaranteed by design, test, or statistical analysis.
LM4873
www.national.com
5
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM4873MT | 制造商:Texas Instruments 功能描述: |
| LM4873MT/NOPB | 功能描述:IC AMP AUDIO PWR 3W STER 20TSSOP RoHS:是 類別:集成電路 (IC) >> 線性 - 音頻放大器 系列:Boomer® 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:DirectDrive® 類型:H 類 輸出類型:耳機，2-通道（立體聲） 在某負(fù)載時最大輸出功率 x 通道數(shù)量:35mW x 2 @ 16 歐姆 電源電壓:1.62 V ~ 1.98 V 特點:I²C，麥克風(fēng)，靜音，短路保護，音量控制 安裝類型:表面貼裝 供應(yīng)商設(shè)備封裝:25-WLP（2.09x2.09） 封裝/外殼:25-WFBGA，WLCSP 包裝:帶卷 (TR) |
| LM4873MTE | 制造商:Rochester Electronics LLC 功能描述: 制造商:Texas Instruments 功能描述: |
| LM4873MTE/NOPB | 功能描述:音頻放大器 Dual 2.1W Audio Amp Plus Stereo HdPh Fcn 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 |
| LM4873MTE-1 | 功能描述:IC AMP AUDIO PWR 3W STER 28TSSOP RoHS:是 類別:集成電路 (IC) >> 線性 - 音頻放大器 系列:Boomer® 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:DirectDrive® 類型:H 類 輸出類型:耳機，2-通道（立體聲） 在某負(fù)載時最大輸出功率 x 通道數(shù)量:35mW x 2 @ 16 歐姆 電源電壓:1.62 V ~ 1.98 V 特點:I²C，麥克風(fēng)，靜音，短路保護，音量控制 安裝類型:表面貼裝 供應(yīng)商設(shè)備封裝:25-WLP（2.09x2.09） 封裝/外殼:25-WFBGA，WLCSP 包裝:帶卷 (TR) |
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