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| 型号： | MAX9759ETE+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 7/20页 |
| 文件大小： | 0K |
| 描述： | IC AMP AUDIO PWR 3.2W D 16TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 75 |
| 类型： | D 类 |
| 输出类型： | 1-通道（单声道） |
| 在某负载时最大输出功率 x 通道数量： | 4.3W x 1 @ 3 欧姆 |
| 电源电压： | 3 V ~ 5.5 V |
| 特点： | 消除爆音，差分输入，静音，短路和热保护，关机 |
| 安装类型： | 表面贴装 |
| 供应商设备封装： | 16-TQFN-EP（4x4） |
| 封装/外壳： | 16-WQFN 裸露焊盘 |
| 包装： | 管件 |
| 产品目录页面： | 1392 (CN2011-ZH PDF) |
MAX9759
3.2W, High-Efficiency, Low-EMI, Filterless,
Class D Audio Amplifier
______________________________________________________________________________________
15
Component Selection
Input Filter
An input capacitor, CIN, in conjunction with the input
impedance of the MAX9759 forms a highpass filter that
removes the DC bias from an incoming signal. The AC-
coupling capacitor allows the amplifier to bias the sig-
nal to an optimum DC level. Assuming zero source
impedance, the -3dB point of the highpass filter is
given by:
f-3dB = 1/(2
πRINCIN)
Choose CIN such that f-3dB is well below the lowest fre-
quency of interest. Setting f-3dB too high affects the
low-frequency response of the amplifier. Use capaci-
tors whose dielectrics have low-voltage coefficients,
such as tantalum or aluminum electrolytic. Capacitors
with high-voltage coefficients, such as ceramics, may
result in increased distortion at low frequencies.
IN+
IN-
OUT+
OUT-
SYNC_OUT
RIGHT-CHANNEL
DIFFERENTIAL
AUDIO INPUT
MAX9759
VDD
PVDD
IN+
IN-
OUT+
SYNC_OUT
SYNC
LEFT-CHANNEL
DIFFERENTIAL
AUDIO INPUT
MAX9759
VDD
PVDD
IN+
IN-
OUT+
SYNC_OUT
SYNC
DIFFERENTIAL
AUDIO INPUT
MAX9759
VDD
PVDD
SYNC
U1
U2
Figure 7. Master-Slave Configuration
100
0
0.5
1.0
1.5
2.0
10
1
0.1
0.01
0.001
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER
OUTPUT POWER (W)
THD+N
(%)
VDD = 5.0V
f = 1kHz
RL = 8
SLAVE DEVICE
Figure 8. Total Harmonic Distortion Plus Noise vs. Output
Voltage
-150
10
100
1k
100k
CROSSTALK vs. FREQUENCY
-130
-110
-90
-30
FREQUENCY (Hz)
CROSSTALK
(dB)
-70
-50
10k
VDD = 5V
RL = 8
f = 1kHz
MASTER TO SLAVE
SLAVE TO MASTER
Figure 9. Crosstalk vs. Frequency
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX9759ETE+ | 功能描述:音频放大器 3.2W Low-EMI Class D Amplifier RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| MAX9759ETE+T | 功能描述:音频放大器 3.2W Low-EMI Class D Amplifier RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| MAX9759EUE+ | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
| MAX9759EUE+T | 制造商:Maxim Integrated Products 功能描述:AUD AMP SPKR 1CH MONO 4.3W CLS-D 16TSSOP - Tape and Reel |
| MAX9759EVKIT | 功能描述:音频放大器 Evaluation Kit for the MAX9759 RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
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