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參數(shù)資料
| 型號(hào)： | LM1876T |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | Overture⑩ Audio Power Amplifier Series Dual 20W Audio Power Amplifier with Mute and Standby Modes |
| 中文描述： | 22 W, 2 CHANNEL, AUDIO AMPLIFIER, PZFM15 |
| 封裝： | PLASTIC, TO-220, 15 PIN |
| 文件頁(yè)數(shù)： | 3/16頁(yè) |
| 文件大小： | 593K |
| 代理商： | LM1876T |
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Electrical Characteristics
(Notes 4, 5) (Continued)
The following specifications apply for V
CC
= +22V, V
EE
= 22V with R
L
= 8
unless otherwise specified. Limits apply for T
A
=
25C.
Symbol
Parameter
Conditions
LM1876
Units
(Limits)
Typical
(Note 9)
110
Limit
(Note 10)
90
A
VOL
(Note 2)
GBWP
e
IN
(Note 3)
SNR
Open Loop Voltage Gain
R
L
= 2 k
,
V
O
= 20 V
dB (min)
Gain Bandwidth Product
Input Noise
f
O
= 100 kHz, V
IN
= 50 mVrms
IHF— A Weighting Filter
R
IN
= 600
(Input Referred)
P
O
= 1W, A— Weighted,
Measured at 1 kHz, R
S
= 25
P
O
= 15W, A— Weighted
Measured at 1 kHz, R
S
= 25
Pin 6,11 at 2.5V
7.5
2.0
5
8
MHz (min)
μV (max)
Signal-to-Noise Ratio
98
dB
108
dB
A
M
Standby
Pin
V
IL
V
IH
Mute pin
V
IL
V
IH
Mute Attenuation
115
80
dB (min)
Standby Low Input Voltage
Standby High Input Voltage
Not in Standby Mode
In Standby Mode
0.8
2.5
V (max)
V (min)
2.0
Mute Low Input Voltage
Mute High Input Voltage
Outputs Not Muted
Outputs Muted
0.8
2.5
V (max)
V (min)
2.0
Note 1:
Operation is guaranteed up to 64V, however, distortion may be introduced from
SPiKe
Protection Circuitry if proper thermal considerations are not taken into
account. Refer to the Application Information section for a complete explanation.
Note 2:
DC Electrical Test; Refer to Test Circuit
#
1.
Note 3:
AC Electrical Test; Refer to Test Circuit
#
2.
Note 4:
All voltages are measured with respect to the GND pins (5, 10), unless otherwise specified.
Note 5:
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is func-
tional, but do not guarantee specific performance limits. Electrical Characteristics state DC andAC electrical specifications under particular test conditions which guar-
antee 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 6:
For operating at case temperatures above 25C, the device must be derated based on a 150C maximum junction temperature and a thermal resistance of
θ
= 2C/W (junction to case) for the TF package and
θ
JC
= 1C/W for the T package. Refer to the section Determining the Correct Heat Sink in the Application In-
formation section.
Note 7:
Human body model, 100 pF discharged through a 1.5 k
resistor.
Note 8:
The operating junction temperature maximum is 150C, however, the instantaneous Safe Operating Area temperature is 250C.
Note 9:
Typicals are measured at 25C and represent the parametric norm.
Note 10:
Limits are guarantees that all parts are tested in production to meet the stated values.
Note 11:
V
must have at least 9V at its pin with reference to ground in order for the under-voltage protection circuitry to be disabled. In addition, the voltage dif-
ferential between V
CC
and V
EE
must be greater than 14V.
Note 12:
The output dropout voltage, V
OD
, is the supply voltage minus the clipping voltage. Refer to the Clipping Voltage vs. Supply Voltage graph in the Typical Per-
formance Characteristics section.
Note 13:
For a 4
load, and with
±
20V supplies, the LM1876 can deliver typically 22W of continuous average output power with less than 0.1% (THD + N). With
supplies above
±
20V, the LM1876 cannot deliver more than 22W into a 4
due to current limiting of the output transistors. Thus, increasing the power supply above
±
20V will only increase the internal power dissipation, not the possible output power. Increased power dissipation will require a larger heat sink as explained in the
Application Information section.
www.national.com
3
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM1876T/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 |
| LM1876TF | 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 |
| LM1876TF | 制造商:Texas Instruments 功能描述:IC AMP AUDIO DUAL 20W |
| LM1876TF/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 |
| LM1877 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Dual Audio Power Amplifier |
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