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參數(shù)資料
| 型號： | LM4953SD |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | Ground-Referenced, Ultra Low Noise, Ceramic Speaker Driver |
| 中文描述： | 1 CHANNEL, AUDIO AMPLIFIER, DSO14 |
| 封裝： | LLP-14 |
| 文件頁數(shù)： | 4/11頁 |
| 文件大?。?/td> | 663K |
| 代理商： | LM4953SD |
Electrical Characteristics V
DD
= 3.0V
(Continued)
The following specifications apply for V
DD
= 3.0V, A
V-BTL
= 6dB, Z
L
= 2μF+30
unless otherwise specified. Limits apply to T
A
=
25C. See Figure 1.
Symbol
Parameter
Conditions
LM4953
Units (Limits)
Typ
(Note 6)
Limit
(Notes 7, 8)
V
SDIL
Shutdown Voltage Input Low
SD1
SD2
0.3*CPVdd
V (max)
T
WU
V
OS
Wake-up Time
Output Offset Voltage
125
1
μsec
10
mV (max)
V
OUT
Output Voltage Swing
THD = 1% (max); f = 1kHz
Z
L
= 2μF+30
, Mono BTL
10.2
Vpp
THD+N
Total Harmonic Distortion +
Noise
Output Noise
V
OUT
= 8.5Vp-p, f
IN
= 1kHz
0.02
%
∈
OS
A-Weighted Filter, V
IN
= 0V
V
RIPPLE
= 200mVp-p, f = 217Hz,
Input Referred
V
RIPPLE
= 200mVp-p, f = 1kHz,
Input Referred
Z
L
= 2μF+30
, V
OUT
= 8.5Vp-p
15
μV
PSRR
Power Supply Rejection
Ratio
73
dB
68
dB
SNR
Signal-to-Noise Ratio
105
dB
Note 1:
All voltages are measured with respect to the GND 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 that
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 T
,
θ
, and the ambient temperature, T
. The maximum
allowable power dissipation is P
DMAX
= (T
JMAX
– T
A
)/
θ
JA
or the number given in Absolute Maximum Ratings, whichever is lower. For the LM4xxx typical application
(shown in Figure 1) with V
DD
= yyV, R
L
= 2μF+30
mono BTL operation the total power dissipation is xxxW.
θ
JA
= 40C/W.
Note 4:
Human body model, 100pF discharged through a 1.5k
resistor.
Note 5:
Machine Model, 220pF-240pF 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:
If the product is in shutdown mode and V
DD
exceeds 3.6V (to a max of 4V V
DD
), 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 part will be protected. If the part is enabled when V
DD
is above 4V, circuit performance will
be curtailed or the part may be permanently damaged.
L
www.national.com
4
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM4953SD/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 |
| LM4953SDBD | 功能描述:BOARD EVALUATION LM4953SD RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - 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:1 系列:- |
| LM4953SDBD/NOPB | 功能描述:音頻 IC 開發(fā)工具 LM4953SD EVAL BRD RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評估:TAS5614L 工作電源電壓:12 V to 38 V |
| LM4953SDX | 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 |
| LM4953SDX/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 |
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