參數(shù)資料
型號： MAX4297EAG
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 音頻／視頻放大
英文描述： Mono/Stereo 2W Switch-Mode (Class-D) Audio Power Amplifiers
中文描述： 2 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO24
封裝： 5.30 MM, MO-150, SSOP-24
文件頁數(shù)： 1/18頁
文件大?。?/td> 719K
代理商： MAX4297EAG
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
M
Mono/Stereo 2W Switch-Mode (Class-D)
Audio Power Amplifiers
________________________________________________________________
Maxim Integrated Products
1
AOUTL
INL
AOUTR
INR
FS1
FS2
PGND
6, 7,
18, 19
AGND
10
SS
V
PVCC
V
CC
V
PVCC
V
CC
OUT+L
OUT-L
OUT+R
OUT-R
VCM*
1
2
12
11
22
14
15
24
17
13
8
20
5
3
4, 9,
16, 21
INPUTL
INPUTR
V
CC
V
CC
RF
RF
RIN
RIN
CIN
CIN
L1A
L1B
L2A
L2B
CSS
C1A
C1B
C2A
C2B
*DO NOT CONNECT.
SHDN
MAX4297
+
19-1746; Rev 1; 2/01
Ordering Information
16 QSOP
16 Narrow SO
24 SSOP
24 Wide SO
PIN-PACKAGE
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
MAX4295
EEE
MAX4295ESE
MAX4297
EAG
MAX4297EWG
PART
Palmtop/Notebook
Computers
PDA Audio
Sound Cards
Game Cards
Boom Boxes
AC Amplifiers
Battery-Powered Speakers
Cordless Phones
Portable Equipment
Pin Configurations appear at end of data sheet.
Typical Operating Circuit
General Description
The MAX4295/MAX4297 mono/stereo, switch-mode
(Class-D) audio power amplifiers operate from a single
+2.7V to +5.5V supply. They have >85% efficiency and
are capable of delivering 2W continuous power to a 4
load, making them ideal for portable multimedia and
general-purpose high-power audio applications.
The MAX4295/MAX4297 feature a total harmonic distor-
tion plus noise (THD+N) of 0.4% (f
OSC
= 125kHz), low
quiescent current of 2.8mA (MAX4295) or 4.6mA
(MAX4297), high efficiency, and clickless power-up and
shutdown. The
SHDN
input disables the device and lim-
its supply current to <1.5μA (MAX4295) or <2.3μA
(MAX4297). Other features include a 1A current limit,
thermal protection, and under-voltage lockout.
The MAX4295 (mono) and MAX4297 (stereo) reduce
the number of required external components. Both
devices have internal high-speed power-MOS transis-
tors, allowing operation as bridge-tied load (BTL) ampli-
fiers. The BTL configuration eliminates the need for
isolation capacitors on the output. The frequency-selec-
table pulse-width modulator (PWM) allows the user to
optimize the size and cost of the output filter.
The MAX4295 is offered in a space-saving 16-pin
QSOP package, and the MAX4297 is offered in a com-
pact 24-pin SSOP package.
Applications
Features
o
+2.7V to +5.5V Single-Supply Operation
o
2W/Channel Output Power at 5V
0.7W/Channel Output Power at 3V
o
87% Efficiency (R
L
= 4
, P
O
= 2W, MAX4295)
o
0.4% THD+N (R
L
= 4
, f
OSC
= 125kHz)
o
Logic-Programmable PWM Frequency Selection
(125kHz, 250kHz, 500kHz, 1MHz)
o
Low-Power Shutdown Mode
o
Clickless Transitions Into and Out of Shutdown
o
1A Current Limit and Thermal Protection
o
Available in Space-Saving Packages
16-Pin QSOP (MAX4295)
24-Pin SSOP (MAX4297)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX4297EAG+ 功能描述:音頻放大器 Integrated Circuits (ICs) 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
MAX4297EAG+T 功能描述:音頻放大器 Integrated Circuits (ICs) 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
MAX4297EAG-T 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
MAX4297EVKIT 制造商:Maxim Integrated Products 功能描述:
MAX4297EWG 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
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