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參數資料
| 型號： | MAX9708ETN |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 20W/40W, Filterless, Spread-Spectrum, Mono/Stereo, Class D Amplifier |
| 中文描述： | 42 W, 1 CHANNEL, AUDIO AMPLIFIER, PQCC56 |
| 封裝： | 8 X 8 MM, 0.80 MM HIEGHT, MO-220WLLD-5, TQFN-56 |
| 文件頁數： | 1/24頁 |
| 文件大小： | 781K |
| 代理商： | MAX9708ETN |
General Description
The MAX9708 mono/stereo, Class D audio power ampli-
fier delivers up to 2 x 21W into an 8
stereo mode and
1 x 42W into a 4
load in mono mode while offering up
to 87% efficiency. The MAX9708 provides Class AB
amplifier performance with the benefits of Class D effi-
ciency, eliminating the need for a bulky heatsink and
conserving power. The MAX9708 operates from a single
+10V to +18V supply, driving the load in a BTL configu-
ration.
The MAX9708 offers two modulation schemes: a fixed-
frequency modulation (FFM) mode, and a spread-spec-
trum modulation (SSM) mode that reduces
EMI-radiated emissions. The MAX9708 can be synchro-
nized to an external clock from 600kHz to 1.2MHz. A
synchronized output allows multiple units to be cascad-
ed in the system.
Features include fully differential inputs, comprehensive
click-and-pop suppression, and four selectable-gain set-
tings (22dB, 25dB, 29.5dB, and 36dB). A pin-program-
mable thermal flag provides seven different thermal
warning thresholds. Short-circuit and thermal-overload
protection prevent the device from being damaged
during a fault condition.
The MAX9708 is available in 56-pin TQFN (8mm x 8mm
x 0.8mm) and 64-pin TQFP (10mm x 10mm x 1.4mm)
packages, and is specified over the extended
-40°C to +85°C temperature range.
Applications
PDP TVs
PC/HiFi Audio Solutions
LCD TVs
Automotive
Features
2 x 21W Output Power in Stereo Mode
(8
, THD = 10%)
1 x 42W Output Power in Mono Mode
(4
, THD = 10%)
High Efficiency: Up to 87%
Filterless Class D Amplifier
Unique Patented Spread-Spectrum Mode
Programmable Gain (+22dB, +25dB, +29.5dB,
+36dB)
High PSRR (90dB at 1kHz)
Differential Inputs Suppress Common-Mode
Noise
Shutdown and Mute Control
Integrated Click-and-Pop Suppression
Low 0.1% THD+N
Current Limit and Thermal Protection
Programmable Thermal Flag
SYNC Input/Output
Available in Thermally Efficient, Space-Saving
Packages: 56-Pin TQFN and 64-Pin TQFP
Ordering Information
M
20W/40W, Filterless, Spread-Spectrum,
Mono/Stereo, Class D Amplifier
________________________________________________________________
Maxim Integrated Products
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.
1
CLASS D
MODULATOR
SYNCOUT
TEMP
OUTPUT
PROTECTION
GAIN
CONTROL
FS1, FS2
SYNC
RIGHT
CHANNEL
MAX9708
STEREO MODE
G1, G2
TH0, TH1,
2
LEFT
CHANNEL
MONO
2
TH2
3
PART
TEMP RANGE
PIN-PACKAGE
PKG
CODE
MAX9708ETN
MAX9708ECB*
-40°C to +85°C
-40°C to +85°C
56 TQFN-EP**
64 TQFP-EP**
T5688-3
C64E-6
Simplified Block Diagram
19-3678; Rev 0; 7/05
EVALUATION KIT
AVAILABLE
*
Future product—Contact factory for availability.
**
EP = Exposed paddle.
Pin Configurations appear at end of data sheet.
CLASS D
MODULATOR
SYNCOUT
TEMP
OUTPUT
PROTECTION
GAIN
CONTROL
FS1, FS2
SYNC
MAX9708
MONO MODE
G1, G2
TH0, TH1,
2
AUDIO
INPUT
V
DIGITAL
MONO
2
TH2
3
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX9708ETN/V+TD | 制造商:Maxim Integrated Products 功能描述:20W/40W FILTERLESS, SPREAD SPECTRUM, MONO/STEREO, CLASS D AM - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC AMP AUDIO PWR 42W STER 56TQFN 制造商:Maxim Integrated Products 功能描述:Filterless Class D Amp Mono/Stereo |
| MAX9708ETN+ | 制造商:Maxim Integrated Products 功能描述:AUD AMP SPKR 1CH MONO/2CH STEREO 42W/21W CLS-D 56TQFN EP - Rail/Tube |
| MAX9708ETN+D | 功能描述:音頻放大器 20W/40W Filterless Class D Amplifier RoHS:否 制造商:STMicroelectronics 產品: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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| MAX9708ETN+T | 制造商:Maxim Integrated Products 功能描述:AUD AMP SPKR 1CH MONO/2CH STEREO 42W/21W CLS-D 56TQFN EP - Tape and Reel |
| MAX9708ETN+TD | 功能描述:音頻放大器 20W/40W Filterless Class D Amplifier RoHS:否 制造商:STMicroelectronics 產品: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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
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