- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄10439 > MAX9715ETE+ (Maxim Integrated Products)IC AMP AUDIO PWR 2.8W D 16TQFN PDF資料下載
參數(shù)資料
| 型號： | MAX9715ETE+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 2/13頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC AMP AUDIO PWR 2.8W D 16TQFN |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 60 |
| 類型： | D 類 |
| 輸出類型： | 2 通道（立體聲） |
| 在某負載時最大輸出功率 x 通道數(shù)量： | 2.8W x 2 @ 4 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(yīng)商設(shè)備封裝： | 16-TQFN-EP（5x5） |
| 封裝/外殼： | 16-WQFN 裸露焊盤 |
| 包裝： | 管件 |
| 產(chǎn)品目錄頁面： | 1392 (CN2011-ZH PDF) |
MAX9715
2.8W, Low-EMI, Stereo, Filterless Class D
Audio Amplifier
10
______________________________________________________________________________________
Supply Bypassing, Layout,
and Grounding
Proper layout and grounding are essential for optimum
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, minimizes crosstalk between chan-
nels, and prevents any switching noise from coupling into
the audio signal. Route ground return paths that carry
switching transients to power ground (PGND). Keep high-
current return paths that connect to PGND short and
route them away from analog ground (GND) and any
traces or components in the audio input signal path. Use
a star connection to connect GND and PGND together at
one point on the PC board.
Bypass each PVDD with a 0.1μF capacitor to PGND.
Bypass VDD to GND with a 0.1μF capacitor. Place a bulk
capacitor between VDD and PGND. Place the bypass
capacitors as close to the MAX9715 as possible.
Use large, low-resistance output traces. Current drawn
from the output increases as load impedance decreases.
High-output-trace resistance decreases the power deliv-
ered to the load. For example, when compared to a 0
Ω
trace, a 100m
Ω trace reduces the power delivered to a
4
Ω load from 2.1W to 2.0W. Large output, supply, and
GND traces decrease the thermal impedance of the cir-
cuit and allow more heat to be radiated from the MAX9715
to the air.
The MAX9715 thin QFN-EP package features an
exposed thermal pad on its underside. This pad lowers
the package’s thermal impedance by providing a direct-
heat conduction path from the die to the PC board.
Connect the exposed thermal pad to an electrically iso-
lated pad of copper. A bigger pad area provides better
thermal performance. Connect EP to GND if PC board
layout rules do not allow for isolated pads of copper. If
EP is connected to GND, ensure that high-current return
paths do not flow through EP.
Biamp Configuration
The
Typical Application Circuit shows the MAX9715
configured as a mid-/high-frequency amplifier and the
MAX9713 is configured as a mono bass amplifier.
Capacitors C1 and C2 set the highpass cutoff frequen-
cy according to the following equation:
where RIN is the input resistance of the MAX9715 and
C1 = C2. The 10μF capacitors on the output of the
MAX9715 ensure a two-pole roll-off with the 5
Ω load
shown.
The stereo signal is summed to a mono signal and then
sent to a two-pole lowpass filter. The filtered signal is
then amplified by the MAX9713. The passband gain of
the lowpass filter, for coherent left and right signals is
(-2 x R3) / R1, where R1 = R2. The cutoff frequency of
the lowpass filter is set by the following equation:
f
CC
R
=×
××
×
1
2
1
3
434
π
f
RC
IN
=
××
1
21
π
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MS27473E10B35S | CONN PLUG 13POS STRAIGHT W/SCKT |
| MS27466E15B5P | CONN RCPT 5POS WALL MT W/PINS |
| VI-J4Y-MY-B1 | CONVERTER MOD DC/DC 3.3V 33W |
| VI-21Y-IU-F2 | CONVERTER MOD DC/DC 3.3V 132W |
| VI-BTX-MX-F3 | CONVERTER MOD DC/DC 5.2V 75W |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX9715ETE+ | 功能描述:音頻放大器 2.8W Low-EMI Stereo Class D Amplifier 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 |
| MAX9715ETE+T | 功能描述:音頻放大器 2.8W Low-EMI Stereo Class D Amplifier 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 |
| MAX9715EUE+ | 制造商:Maxim Integrated Products 功能描述:AUD AMP SPKR 2CH STEREO 2.8W CLS-D 16TSSOP - Rail/Tube |
| MAX9715EUE+T | 制造商:Maxim Integrated Products 功能描述:AUD AMP SPKR 2CH STEREO 2.8W CLS-D 16TSSOP - Tape and Reel |
| MAX9715EVKIT | 功能描述:音頻放大器 Evaluation Kit for the MAX9715 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 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。