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| 型号： | MAX9707ETX+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 5/25页 |
| 文件大小： | 0K |
| 描述： | IC AMP AUDIO 2.3W STER+1 36TQFN |
| 标准包装： | 2,500 |
| 类型： | D 类 |
| 输出类型： | 2-通道（立体声）带超低音器 |
| 在某负载时最大输出功率 x 通道数量： | 2.3W x 3 @ 4 欧姆 |
| 电源电压： | 4.5 V ~ 5.5 V |
| 特点： | 消除爆音，短路保护和热保护，关闭 |
| 安装类型： | 表面贴装 |
| 供应商设备封装： | 36-TQFN 裸露焊盘（6x6） |
| 封装/外壳： | 36-WFQFN 裸露焊盘 |
| 包装： | 带卷 (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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相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 |
| MAX9708ETN | 制造商:Maxim Integrated Products 功能描述:20W/40W FILTERLESS, SPREAD-SPECTRUM, MONO/STE - Rail/Tube |
| 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 |
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