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參數(shù)資料
| 型號(hào)： | LX1720-01DB |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 2 CHANNEL, AUDIO AMPLIFIER, PDSO44 |
| 封裝： | PLASTIC, SSOP-44 |
| 文件頁(yè)數(shù)： | 1/6頁(yè) |
| 文件大?。?/td> | 179K |
| 代理商： | LX1720-01DB |
DESCRIPTION
KEY FEA TURES
s
s Integrated Switching (Class-D) Stereo
Power Amplifier Controller IC
s
s Delivers >10W
RMS Across 8 /Channel
(20W
RMS stereo)
s
s Output Power Limited Only By External
FETs And Available Supply Voltage
s
s Will Drive A Wide Range Of Speakers
s
s High Efficiency (>92%)
s
s Due To High Efficiency, Power FETs Do Not
Require Heatsinking
s
s Audio Bandwidth Of 20Hz to 20kHz
s
s Wide Input Voltage Range Of 7V-15V
s
s Low Output Signal Distortion <1%
s
s High Operating Frequency (350kHz) Helps
To Reduce Output Filter Size
s
s Compact Design Minimizes EMI / RFI
The LX1720 is a highly-integrated,
Switching Class-D Stereo Power Am-
plifier Controller IC with power and
size features that make it ideal for multi-
media computer applications, as well as
other applications where high fidelity
sound is required.
With input voltage ranging from 7V-
15V, the LX1720 is designed to operate
over the full 20Hz to 20kHz audio range.
Signal distortion measurements using
industry standard 1kHz signal yields THD
+ noise levels < 1% (10 watts output).
PRODUCT HIGHLIGHT
SWITCHING CLASS-D, STEREO POWER AMPLIFIER CONTROLLER IC
P RODUCTION D AT A S HEET
T HE
I NFINITE
P OWER
OF
I NNOV A TION
LX1720
Its high efficiency (>92%) eliminates the
need for heat sinks — even while deliv-
ering more than 10W
RMS across 8 ohms
per channel (20W
RMS stereo) with 0.1 ohm
SO-8 power FETs.
The LX1720's output power is limited
only by external FETs and available sup-
ply voltage.
While offering breakthrough perfor-
mance capabilities for notebooks, the
LX1720 is equally attractive for multime-
dia systems or to drive full-size home
theatre speakers.
Copyright 1999
Rev. 1.0
9/99
1
11861 WESTERN AVENUE, GARDEN GROVE, CA. 92841, 714-898-8121, FAX: 714-893-2570
L IN F INITY M ICROELECTRONICS I NC .
APPLICATIONS / BENEFITS
Notebook Computers:
s
s Replaces existing internal low power linear
amplifier with a high efficiency Class-D
amplifier
s
s Enables the use of virtually any external
speaker without amplification
s
s Precious battery life is extended
s
s Fully protected power topology can
withstand shorts or external speaker
failures without damage, overheating or
posing fire hazard
Desktop Computers:
s
s Output power capability of up to 20W
RMS
per channel in an area less than 3"x3",
without using expensive heatsinks
s
s Greatly reduced power supply
requirements when compared to a linear
solution of same power capabilities
s
s Any speakers can be used including
conventional home stereo speakers
s
s Very light weight circuitry will not add to
the overall weight of the system
s
s Multimedia amplifier can be directly
incorporated on the motherboard using
surface mount components
0 to 70
15V
LX1720-01CDB
PACKAGE ORDER INFO
T
J (°C)
Plastic SSOP
44-pin
DB
Note: Available in Tape & Reel.
Append the letter "T" to part number. (i.e. LX1720-01CDBT)
0
Seconds
Efficiency
(%)
60
0
5
10
15
20
100
80
40
20
Highly Integrated
Linear Amplifier
Linfinity's LX1720
Class-D Amplifier
- Average Power Out for 20sec
512mW
- Across 8.6
W load
Audio sample from "Hold On Tight"
by Electric Light Orchestra
EFFICIENCY COMPARISON OF THE CLASS-D AMPLFIER
Maximum
VDD
IMPORTANT: For the most current data, consult LinFinity's web site: http://www.linfinity.com.
APPLICATION NOTE AN-11
available on our web site
or call 1-800-LMI-7011
AudioMAX
TM
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LX1720-01DB | 2 CHANNEL, AUDIO AMPLIFIER, PDSO44 |
| LX1720-01CDB | 2 CHANNEL, AUDIO AMPLIFIER, PDSO44 |
| LX1720-02CDBT | 2 CHANNEL, AUDIO AMPLIFIER, PDSO44 |
| LX1720-02CDB | 2 CHANNEL, AUDIO AMPLIFIER, PDSO44 |
| LX1720-02CDBT | 2 CHANNEL, AUDIO AMPLIFIER, PDSO44 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LX1721 | 制造商:MICROSEMI 制造商全稱:Microsemi Corporation 功能描述:Class-D Stereo Power Amplifier Controller |
| LX1721_04 | 制造商:MICROSEMI 制造商全稱:Microsemi Corporation 功能描述:Class-D Stereo Power Amplifier Controller |
| LX1721-01 EVAL KIT | 功能描述:KIT EVAL AMP STEREO CLASS D RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評(píng)估板 - 音頻放大器 系列:AudioMAX 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:- |
| LX1721CDB | 功能描述:IC AMP AUDIO PWR 10W STER 44QSOP RoHS:否 類別:集成電路 (IC) >> 線性 - 音頻放大器 系列:AudioMAX™ 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:DirectDrive® 類型:H 類 輸出類型:耳機(jī)，2-通道（立體聲） 在某負(fù)載時(shí)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(diǎn):I²C，麥克風(fēng)，靜音，短路保護(hù)，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) |
| LX1721CDBTR | 制造商:MICROSEMI 制造商全稱:Microsemi Corporation 功能描述:Class-D Stereo Power Amplifier Controller |
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