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| 型號(hào)： | MAX9709ETN+TD |
| 廠商： | Maxim Integrated Products |
| 文件頁(yè)數(shù)： | 1/20頁(yè) |
| 文件大小： | 0K |
| 描述： | IC AMP AUDIO PWR 50W STER 56TQFN |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 類型： | D 類 |
| 輸出類型： | 1-通道（單聲道）或 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： | 50W x 1 @ 4 歐姆; 29W x 2 @ 8 歐姆 |
| 電源電壓： | 10 V ~ 22 V |
| 特點(diǎn)： | 消除爆音，差分輸入，靜音，短路和熱保護(hù)，關(guān)機(jī) |
| 安裝類型： | 表面貼裝 |
| 供應(yīng)商設(shè)備封裝： | 56-TQFN-EP（8x8） |
| 封裝/外殼： | 56-WFQFN 裸露焊盤(pán) |
| 包裝： | 帶卷 (TR) |
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General Description
The MAX9709 stereo/mono, Class D audio power amplifi-
er delivers up to 2 x 25W into an 8Ω stereo mode and
1 x 50W into a 4Ω load in mono mode while offering up to
87% efficiency. The MAX9709 provides Class AB amplifi-
er performance with the benefits of Class D efficiency,
eliminating the need for a bulky heatsink and conserving
power. The MAX9709 operates from a single +10V to
+22V supply, driving the load in a BTL configuration.
The MAX9709 offers two modulation schemes: a fixed-fre-
quency modulation (FFM) mode, and a spread-spectrum
modulation (SSM) mode that reduces EMI-radiated emis-
sions. The MAX9709 can be synchronized to an external
clock from 600kHz to 1.2MHz. A synchronized output
allows multiple units to be cascaded 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 MAX9709 is available in a 56-pin TQFN (8mm x
8mm x 0.8mm) package, and is specified over the
extended -40°C to +85°C temperature range.
Applications
LCD TVs
PDP TVs
Automotive
PC/HiFi Audio Solutions
Features
2 x 25W Output Power in Stereo Mode
(8Ω, THD = 10%)
1 x 50W Output Power in Mono Mode
(4Ω, THD = 10%)
High Efficiency: Up to 87%
Filterless Class D Amplifier
Unique 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
Clock Synchronization Input and Output
Available in Thermally Efficient, Space-Saving
Package: 56-Pin TQFN
MAX9709
25W/50W, Filterless, Spread-Spectrum,
Stereo/Mono, Class D Amplifier
________________________________________________________________
Maxim Integrated Products
1
CLASS D
MODULATOR
SYNCOUT
TEMP
OUTPUT
PROTECTION
GAIN
CONTROL
FS1, FS2
MAX9709
STEREO MODE
G1, G2
2
SYNC
RIGHT
CHANNEL
LEFT
CHANNEL
MONO
2
TH0, TH1,
TH2
3
PART
TEMP RANGE
PIN-PACKAGE
MAX9709ETN+
-40°C to +85°C
56 TQFN-EP**
Simplified Block Diagram
Ordering Information
19-3769; Rev 1; 5/08
+
Denotes a lead-free package.
**
EP = Exposed pad.
Pin Configurations appear at end of data sheet.
EVALUATION
KIT
AVAILABLE
CLASS D
MODULATOR
SYNCOUT
TEMP
OUTPUT
PROTECTION
GAIN
CONTROL
FS1, FS2
MAX9709
MONO MODE
G1, G2
2
SYNC
AUDIO
INPUT
VDIGITAL
MONO
2
TH0, TH1,
TH2
3
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| MAX9709EVKIT | 功能描述:音頻放大器 Evaluation Kit for the MAX9709 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 |
| MAX970EEE | 功能描述:校驗(yàn)器 IC Quad uPower Comparator RoHS:否 制造商:STMicroelectronics 產(chǎn)品: 比較器類型: 通道數(shù)量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補(bǔ)償電壓（最大值）:6 mV 電源電流（最大值）:1350 nA 響應(yīng)時(shí)間: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel |
| MAX970EEE+ | 功能描述:校驗(yàn)器 IC Quad uPower Comparator RoHS:否 制造商:STMicroelectronics 產(chǎn)品: 比較器類型: 通道數(shù)量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補(bǔ)償電壓（最大值）:6 mV 電源電流（最大值）:1350 nA 響應(yīng)時(shí)間: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel |
| MAX970EEE+T | 功能描述:校驗(yàn)器 IC Quad uPower Comparator RoHS:否 制造商:STMicroelectronics 產(chǎn)品: 比較器類型: 通道數(shù)量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補(bǔ)償電壓（最大值）:6 mV 電源電流（最大值）:1350 nA 響應(yīng)時(shí)間: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel |
| MAX970EEE-T | 功能描述:校驗(yàn)器 IC Quad uPower Comparator RoHS:否 制造商:STMicroelectronics 產(chǎn)品: 比較器類型: 通道數(shù)量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補(bǔ)償電壓（最大值）:6 mV 電源電流（最大值）:1350 nA 響應(yīng)時(shí)間: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel |
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