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參數資料
| 型號： | LM4961LQ |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | Ceramic Speaker Driver |
| 中文描述： | 1 CHANNEL, AUDIO AMPLIFIER, QCC28 |
| 封裝： | 5 X 5 MM, LLP-28 |
| 文件頁數： | 4/16頁 |
| 文件大?。?/td> | 509K |
| 代理商： | LM4961LQ |
Electrical Characteristics V
DD
= 3.2V
(Continued)
The following specifications apply for V
= 3.2V, A
V-BTL
= 26dB, R
L
= 2μF+30
, Cb = 1.0μF, Band-SW = V
DD
unless other-
wise specified. Limits apply for T
A
= 25C.
Symbol
Parameter
Conditions
LM4961
Units
(Limits)
Typical
(Note 6)
Limit
(Notes 7, 8)
1.5
V
LH
Logic High Threshold Voltage
For Shutdown 1, Shutdown 2, and
Band-SW
For Shutdown 1, Shutdown 2, and
Band-SW
For Shutdown 2 and Band-SW
V (min)
V
LL
Logic Low Threshold Voltage
0.4
V (max)
R
PULLDOWN
TSD
Pulldown Resistor
Thermal Shutdown Temperature
70k
50k
125
(min)
C (min)
V
out
Output Voltage Swing
THD = 1%, f = 1kHz
R
L
= 2μF+30
Mono BTL
V
out
= 14Vp-p, f = 1kHz
A-Weighted Filter, V
IN
= 0V (Note
10)
V
RIPPLE
= 200mV
p-p
, f = 100Hz
Band SW “High” Isink = 100μA
(Between pin 1 and pin 28)
15
14
Vp-p (min)
THD+N
Total Harmomic Distortion + Noise
Output Noise
0.1
125
1.0
% (max)
μV
e
OS
PSRR
Ron-sw-out
Power Supply Rejection Ratio
On Resistance on SW-Out
80
170
65
220
dB (min)
(max)
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 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 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 given in Absolute Maximum Ratings, whichever is lower. For the LM4961 typical application (shown
in
Figure 1
) with V
DD
= 4.2V, R
L
= 2μF+30
mono BTL operation the maximum power dissipation is 232mW.
θ
JA
= 66C/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:
Shutdown current is measured in a normal room environment. The Shutdown pin should be driven as close as possible to GND for minimum shutdown
current.
Note 10:
Noise measurements are dependent on the absolute values of closed loop gain setting resistors (input and feedback resistors).
L
www.national.com
4
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LM4961LQ/NOPB | 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產品: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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| LM4961LQBD | 功能描述:音頻 IC 開發(fā)工具 LM4961LQ EVAL BOARD RoHS:否 制造商:Texas Instruments 產品:Evaluation Kits 類型:Audio Amplifiers 工具用于評估:TAS5614L 工作電源電壓:12 V to 38 V |
| LM4961LQBD/NOPB | 制造商:Texas Instruments 功能描述:Evaluation Kit For Ceramic Speaker Driver |
| LM4961LQX | 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產品: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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| LM4961LQX/NOPB | 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產品: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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
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