- 您現在的位置：買賣IC網 > PDF目錄384592 > LDC08A (National Semiconductor Corporation) 3W Audio Power Amplifier with Shutdown Mode PDF資料下載
參數資料
| 型號： | LDC08A |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | 3W Audio Power Amplifier with Shutdown Mode |
| 中文描述： | 3W音頻功率放大器關斷模式 |
| 文件頁數： | 1/15頁 |
| 文件大小： | 543K |
| 代理商： | LDC08A |
LM4991
3W Audio Power Amplifier with Shutdown Mode
General Description
The LM4991 is a mono bridged audio power amplifier ca-
pable of delivering 3W of continuous average power into a
3
load with less than 10% THD when powered by a 5V
power supply (Note 1). To conserve power in portable appli-
cations, the LM4991’s micropower shutdown mode (I
=
0.1μA, typ) is activated when V
DD
is applied to the SHUT-
DOWN pin.
Boomer audio power amplifiers are designed specifically to
provide high power, high fidelity audio output. They require
few external components and operate on low supply volt-
ages from 2.2V to 5.5V. Since the LM4991 does not require
output coupling capacitors, bootstrap capacitors, or snubber
networks, it is ideally suited for low-power portable systems
that require minimum volume and weight.
Additional LM4991 features include thermal shutdown pro-
tection, unity-gain stability, and external gain set.
Note 1:
An LM4991LD that has been properly mounted to a circuit board will
deliver 3W into 3
(at 10% THD). The other package options for the LM4991
will deliver 1.5W into 8
(at 10% THD). See the
Application Information
sections for further information concerning the LM4991LD and LM4991M.
Key Specifications
n
Improved PSRR at 217kHz and 1kHz
n
P
O
at V
DD
= 5.0V, 10% THD, 1kHz
n
LM4991LD (only), 3
, 4
n
All packages, 8
load
n
Shutdown current
64dB (typ)
3W (typ), 2.5W (typ)
1.5W (typ)
0.1μA (typ)
Features
n
Available in space-saving LLP and MA packages
n
Ultra low current shutdown mode
n
Can drive capacitive loads up to 500pF
n
Improved pop & click circuitry reduces noises during
turn-on and turn-off transitions
n
2.2 - 5.5V operation
n
No output coupling capacitors, snubber networks,
bootstrap capacitors or gain-setting resistors required
n
Unity-gain stable
Applications
n
Wireless and cellular handsets
n
PDA’s
n
Portable computers
n
Desktop computers
Connection Diagrams
Small Outline Package
LLP Package
20074002
Top View
Order Number LM4991MA
See NS Package Number M08A
20074039
Top View
Order Number LM4991LD
See NS Package Number LDC08A
Boomer
is a registered trademark of National Semiconductor Corporation.
May 2003
L
2003 National Semiconductor Corporation
DS200740
www.national.com
相關PDF資料 |
PDF描述 |
|---|---|
| LDO513 | IP Library: Power Supply Range 2.9V to 13V, Low Power, 50mA Low Dropout Voltage Regulator |
| LDO514 | IP Library: High PSRR, Very Low power, 200mA Low Dropout Voltage Regulator |
| LDO517 | IP Library: Wide Range ESR Capacitor, Low Noise, 100mA Low Dropout Voltage Regulator |
| LDO518 | IP Library: Low Noise, High PSRR 100mA Low Dropout Voltage Regulator |
| LDO57 | IP Library: High Output Current, Low power, 400mA Low Dropout Voltage Regulator |
相關代理商/技術參數 |
參數描述 |
|---|---|
| LDC1000 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:LDC1000 Inductance to Digital Converter |
| LDC1000EVM | 制造商:Texas Instruments 功能描述:Evaluation Module for Inductance to Digital Converter with Sample PCB Coil 制造商:Texas Instruments 功能描述:LDC1000EVM - Boxed Product (Development Kits) 制造商:Texas Instruments 功能描述:EVAL BOARD FOR LDC1000 制造商:Texas Instruments 功能描述:LDC1000 INDUCTIVE SENSING EV |
| LDC1000NHRJ | 制造商:Texas Instruments 功能描述: 制造商:Texas Instruments 功能描述:IC INDUCTIVE TO DIGITAL CONVERTE 制造商:Texas Instruments 功能描述:Data Converter ICs - Various Inductive-to-Digital Converter 制造商:Texas Instruments 功能描述:INDUCTIVE-TO-DIGITAL CONV, 16BIT, SON-16, Supply Voltage Min:4.75V, Supply Voltage Max:5.25V, Operating Temperature Min:-40C, Operating Temperature Max:125C, Digital IC Case Style:SON, No. of Pins:16, Data Interface:SPI , RoHS Compliant: Yes |
| LDC1000NHRR | 制造商:Texas Instruments 功能描述: 制造商:Texas Instruments 功能描述:IC INDUCTIVE TO DIGITAL CONVERTE 制造商:Texas Instruments 功能描述:Data Converter ICs - Various Inductive-to-Digital Converter 制造商:Texas Instruments 功能描述:INDUCTIVE-TO-DIGITAL CONV, 16BIT, SON-16, Supply Voltage Min:4.75V, Supply Voltage Max:5.25V, Operating Temperature Min:-40C, Operating Temperature Max:125C, Digital IC Case Style:SON, No. of Pins:16, Data Interface:SPI , RoHS Compliant: Yes |
| LDC1000NHRT | 制造商:Texas Instruments 功能描述:INDUCTIVE-TO-DIGITAL CONVERTER - Tape and Reel 制造商:Texas Instruments 功能描述:INDUCTIVE-TO-DIGITAL CONVERTER - Cut TR (SOS) 制造商:Texas Instruments 功能描述:IC INDUCTIVE TO DIGITAL CONVERTE 制造商:Texas Instruments 功能描述:CONVERTER INDUCTANCE - DIGITA 制造商:Texas Instruments 功能描述:Data Converter ICs - Various Inductive-to-Digital Converter 制造商:Texas Instruments 功能描述:INDUCTIVE-TO-DIGITAL CONV, 16BIT, SON-16, Resolution (Bits):16bit, Supply Voltage Type:Single, Supply Voltage Min:4.75V, Supply Voltage Max:5.25V, Supply Current:1.7mA, Digital IC Case Style:SON, No. of Pins:16, Input Channel Type:- , RoHS Compliant: Yes |
發布緊急采購，3分鐘左右您將得到回復。