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參數(shù)資料
| 型號： | LM4700MWC |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 30 W, 1 CHANNEL, AUDIO AMPLIFIER, UUC |
| 封裝： | WAFER |
| 文件頁數(shù)： | 13/19頁 |
| 文件大?。?/td> | 558K |
| 代理商： | LM4700MWC |
Electrical Characteristics (Continued)
(Notes 4, 5) The following specifications are for V
CC = +28V, VEE = 28V with RL = 8, unless otherwise specified. Limits ap-
ply for T
A = 25C.
Symbol
Parameter
Conditions
LM4700
Units
(Limits)
Typical
Limit
(Note 9)
(Note
10)
CMRR
Common Mode Rejection Ratio
V
CC = 35V to 10V, VEE = 10V to 35V,
110
80
dB (min)
(Note 2)
V
CM = 10V to 10V, IO = 0mA
A
VOL (Note 2)
Open Loop Voltage Gain
R
L = 2k, VO = 30V
110
90
dB (min)
GBWP
Gain-Bandwidth Product
f
O = 100 kHz, VIN = 50 mVrms
7.5
5
MHz (min)
e
IN
Input Noise
IHF — A Weighting Filter
2.0
8
V (max)
(Note 3)
R
IN = 600 (Input Referred)
SNR
Signal-to-Noise Ratio
P
O = 1W, A-Weighted,
98
dB
Measured at 1 kHz, R
S = 25
P
O = 25W, A-Weighted
108
dB
Measured at 1 kHz, R
S = 25
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 (pin 7), 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 and AC 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
θJC = 2C/W (junction to case). Refer to the section, Determining the Correct Heat Sink, in the Application Information 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: VEE 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 VCC and VEE must be greater than 14V.
Note 12: The output dropout voltage, VOD, 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: Fora4
load, and with ±20V supplies, the LM4700 can deliver typically 22 Watts of continuous average power per channel with less than 0.1% (THD+N).
With supplies above ±20V, the LM4700 cannot deliver more than 22 watts into 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.
Note 14: Preliminary engineering evaluation of
θJC for the TF package has been assessed as 2C/W. This is a preliminary engineering number and represents the
data to this point. Please contact your local National Semiconductor sales representative for more information.
www.national.com
3
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| LM4700T | 30 W, 1 CHANNEL, AUDIO AMPLIFIER, PZFM11 |
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| LM4701MWC | 30 W, 1 CHANNEL, AUDIO AMPLIFIER, UUC |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM4700T | 功能描述:IC AMP AUDIO PWR 30W AB TO220-11 RoHS:否 類別:集成電路 (IC) >> 線性 - 音頻放大器 系列:Overture™ 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝: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，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) |
| LM4700T/NOPB | 制造商:Texas Instruments 功能描述: |
| LM4700TF | 制造商:Texas Instruments 功能描述:IC AMP + MUTE 30W 4700 TO-220-11 |
| LM4700TF | 制造商:Texas Instruments 功能描述:IC AMP + MUTE 30W 4700 TO-220-11 |
| LM4700TF/NOPB | 功能描述:IC AMP AUDIO PWR 30W AB TO220-11 RoHS:是 類別:集成電路 (IC) >> 線性 - 音頻放大器 系列:Overture™ 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝: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，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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