BIAS is the output of the internally-generated VCC/2 bia" />
參數(shù)資料
型號: MAX9716ETA+T
廠商: Maxim Integrated Products
文件頁數(shù): 4/21頁
文件大?。?/td> 0K
描述: IC AMP AUDIO PWR 1.4W MONO 8TDFN
產(chǎn)品培訓模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝: 1
類型: AB 類
輸出類型: 1-通道(單聲道)
在某負載時最大輸出功率 x 通道數(shù)量: 1.4W x 1 @ 4 歐姆
電源電壓: 2.7 V ~ 5.5 V
特點: 消除爆音,差分輸入,關(guān)閉,熱保護
安裝類型: 表面貼裝
供應商設(shè)備封裝: 8-TDFN-EP(3x3)
封裝/外殼: 8-WDFN 裸露焊盤
包裝: 標準包裝
產(chǎn)品目錄頁面: 1392 (CN2011-ZH PDF)
其它名稱: MAX9716ETA+TDKR
MAX9716/MAX9717
BIAS Capacitor
BIAS is the output of the internally-generated VCC/2 bias
voltage. The BIAS bypass capacitor, CBIAS, improves the
power-supply rejection ratio by reducing power supply
and other noise sources at the common-mode bias node.
CBIAS also generates the clickless/popless startup DC
bias waveform for the speaker amplifiers. Bypass BIAS
with a 1F capacitor to GND. Larger CBIAS values
improve PSRR but slow down tON time. Do not connect
external loads to BIAS.
Supply Bypassing
Proper power-supply bypassing ensures low-noise,
low-distortion performance. Connect a 1F ceramic
capacitor from VCC to GND. Add additional bulk
capacitance as required by the application. Connect
the bypass capacitor as close to the device as possible.
Layout and Grounding
Proper PC board layout and grounding is essential for
optimizing performance. Use large traces for the
power-supply inputs and amplifier outputs to minimize
losses due to parasitic trace resistance. Large traces
also aid in moving heat away from the package. Proper
grounding improves audio performance and prevents
digital switching noise from coupling into the audio signal.
The MAX9716/MAX9717 TDFN and MAX packages
feature exposed thermal pads on their undersides. This
pad lowers the thermal resistance of the package by
providing a direct-heat conduction path from the die to
the printed circuit board. Connect the exposed pad to
the ground plane using multiple vias, if required.
Low-Cost, Mono, 1.4W BTL Audio
Power Amplifiers
12
______________________________________________________________________________________
CLICKLESS/POPLESS
SHUTDOWN
CONTROL
BIAS
IN+
IN-
OUT+
OUT-
SHDN
GND
MAX9716
RF
20k
RF
20k
VCC
RIN
20k
CIN
0.33
F
AUDIO
INPUT
RIN
20k
CIN
0.33
F
AUDIO
INPUT
CBIAS
220pF
20k
20k
VCC
VALUES SHOWN FOR 0dB GAIN.
OFF
ON
Figure 4. MAX9716 Differential Input
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX9716EUA 制造商:Maxim Integrated Products 功能描述:- Rail/Tube
MAX9716EUA+ 功能描述:音頻放大器 Mono 1.4W BTL Audio Power Amp 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
MAX9716EUA+T 功能描述:音頻放大器 Mono 1.4W BTL Audio Power Amp 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
MAX9716EUA-T 制造商:Maxim Integrated Products 功能描述:- Tape and Reel
MAX9716EVKIT 功能描述:放大器 IC 開發(fā)工具 MAX9716 Eval Kit 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