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參數(shù)資料
| 型號： | MAX9706ETX+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 5/25頁 |
| 文件大小： | 0K |
| 描述： | IC AMP AUDIO 2.3W STER+1 36TQFN |
| 標準包裝： | 2,500 |
| 系列： | DirectDrive® |
| 類型： | D 類 |
| 輸出類型： | 2-通道（立體聲）帶立體聲耳機和超低音器 |
| 在某負載時最大輸出功率 x 通道數(shù)量： | 2.3W x 3 @ 4 歐姆; 95mW x 2 @ 16 歐姆 |
| 電源電壓： | 4.5 V ~ 5.5 V |
| 特點： | 消除爆音，短路保護和熱保護，關(guān)閉 |
| 安裝類型： | 表面貼裝 |
| 供應商設備封裝： | 36-TQFN 裸露焊盤（6x6） |
| 封裝/外殼： | 36-WFQFN 裸露焊盤 |
| 包裝： | 帶卷 (TR) |
MAX9706/MAX9707
3-Channel, 2.3W, Filterless Class D Amplifiers
with Active Crossover
______________________________________________________________________________________
13
Detailed Description
The MAX9706/MAX9707 combine three high-efficiency
Class D amplifiers with an active crossover to provide
stereo highpass outputs, and a mono lowpass output
(Figure 1). All three channels deliver up to 2.3W per
channel into 4Ω when operating from a 5V supply.
An internal active filter processes the stereo inputs (left
and right) into stereo highpass and mono lowpass out-
puts. The crossover frequency is pin-selectable to four
different frequencies to accommodate a variety of
speaker configurations.
The internal Class D amplifiers feature low-EMI, spread-
spectrum outputs. No output filters are required.
The MAX9706 features Maxim’s DirectDrive headphone
amplifier, providing ground-referenced headphone out-
puts without the need for bulky coupling capacitors.
The headphone outputs are capable of delivering
95mW per channel into 16Ω from a 3.3V supply, and
are protected against ESD up to ±8kV.
Pin Description (continued)
PIN
MAX9706
MAX9707
NAME
FUNCTION
27
INR
Right-Channel Audio Input. Connect the right-channel audio signal to INR with a series
capacitor. INR has a 25k
Ω typical input impedance.
28
MGAIN
Mono Gain Control. Connect MGAIN to GND, VDD, or leave floating to set the gain of the
MONO channel with respect to the left and right channels. See Table 3.
29
GAIN2
Amplifier Gain-Control Input. Connect GAIN1 and GAIN2 to GND or VDD to set the gain of the
left and right channels. See Tables 2 and 4.
30
GAIN1
Amplifier Gain-Control Input. Connect GAIN1 and GAIN2 to GND or VDD to set the gain of the
left and right channels. See Tables 2 and 4.
32
OUTM-
Mono-Speaker Negative Terminal
33
OUTM+
Mono-Speaker Positive Terminal
35
MONO_OUT
Mono Line-Level Output. MONO_OUT is the monaural output of the summed left and right low-
frequency signals.
36
INL
Left-Channel Audio Input. Connect the left-channel audio signal to INL with a series capacitor.
INL has a 25k
Ω typical input impedance.
—
9–13,
16–19
N.C.
No Connection. Not internally connected.
—
15
I.C.
Internally Connected. Connect to GND.
EP
Exposed Pad. The external pad lowers the package’s thermal impedance by providing a
direct heat conduction path from the die to the PC board. The exposed pad is not internally
connected. Connect the exposed pad to GND.
MAX9706
MAX9707
LEFT IN
CLASS D
AMPLIFIER
CLASS D
AMPLIFIER
CLASS D
AMPLIFIER
HPF
LPF
HPF
RIGHT IN
Figure 1. Speaker Arrangement
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX9706EVKIT | 功能描述:放大器 IC 開發(fā)工具 RoHS:否 制造商:International Rectifier 產(chǎn)品:Demonstration Boards 類型:Power Amplifiers 工具用于評估:IR4302 工作電源電壓:13 V to 23 V |
| MAX9707ETX+ | 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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| MAX9707ETX+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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| MAX9708ECB+D | 制造商:Maxim Integrated Products 功能描述:AUD AMP SPKR 1CH MONO/2CH STEREO 42W/21W CLS-D 64TQFP EP - Rail/Tube |
| MAX9708ECB+TD | 制造商:Maxim Integrated Products 功能描述:AUD AMP SPKR 1CH MONO/2CH STEREO 42W/21W CLS-D 64TQFP EP - Tape and Reel |
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