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參數(shù)資料
| 型號(hào)： | MAX9796EBX+TG45 |
| 廠商： | Maxim Integrated Products |
| 文件頁(yè)數(shù)： | 7/28頁(yè) |
| 文件大小： | 0K |
| 描述： | IC AMP AUDIO 2.3W MONO D 36UCSP |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 系列： | DirectDrive® |
| 類型： | D 類 |
| 輸出類型： | 1-通道（單聲道），帶立體聲耳機(jī) |
| 在某負(fù)載時(shí)最大輸出功率 x 通道數(shù)量： | 2.3W x 1 @ 4 歐姆 |
| 電源電壓： | 2.7 V ~ 5.5 V |
| 特點(diǎn)： | 消除爆音，差分輸入，I²C，靜音，短路和熱保護(hù)，關(guān)機(jī)，音量控制 |
| 安裝類型： | 表面貼裝 |
| 供應(yīng)商設(shè)備封裝： | 36-UCSP |
| 封裝/外殼： | 36-WFBGA，CSBGA |
| 包裝： | 帶卷 (TR) |
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Operating Modes
Fixed-Frequency Modulation
The MAX9796 features a fixed-frequency modulation
mode with a 1.1MHz switching frequency, set through
the I2C interface (Table 2). In fixed-frequency modula-
tion mode, the frequency spectrum of the Class D out-
put consists of the fundamental switching frequency
and its associated harmonics (see the Wideband
Output Spectrum Fixed-Frequency Mode graph in the
Typical Operating Characteristics).
Spread-Spectrum Modulation
The MAX9796 features a unique spread-spectrum
modulation that flattens the wideband spectral compo-
nents. Proprietary techniques ensure that the cycle-to-
cycle variation of the switching period does not
degrade audio reproduction or efficiency (see the
Typical Operating Characteristics). Select the spread-
spectrum modulation mode through the I2C interface
(Table 2). In spread-spectrum modulation mode, the
switching frequency varies randomly by ±30kHz
around the center frequency (1.16MHz). The modula-
tion scheme remains the same, but the period of the
sawtooth waveform changes from cycle to cycle
(Figure 2). Instead of a large amount of spectral energy
present at multiples of the switching frequency, the
energy is now spread over a bandwidth that increases
with frequency. Above a few megahertz, the wideband
spectrum looks like white noise for EMI purposes (see
Figure 3).
MAX9796
2.3W, High-Power Class D Audio Subsystem
with DirectDrive Headphone Amplifiers
______________________________________________________________________________________
15
VOUT+ - VOUT-
tSW
VIN-
VIN+
OUT+
OUT-
tON(MIN)
Figure 2. Output with an Input Signal Applied (Spread-Spectrum Modulation Mode)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX9796EVKIT | 制造商:Maxim Integrated Products 功能描述:2.3W HIGH-POWER CLASS D AUDIO SUBS - Rail/Tube |
| MAX9796EVKIT+ | 制造商:Maxim Integrated Products 功能描述:MAX9796 EVAL KIT - Boxed Product (Development Kits) |
| MAX98088EVKIT# | 功能描述:音頻 IC 開(kāi)發(fā)工具 MAX98088 Eval Kit RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評(píng)估:TAS5614L 工作電源電壓:12 V to 38 V |
| MAX98088EVKIT+ | 功能描述:音頻 IC 開(kāi)發(fā)工具 MAX98088 Eval Kit RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評(píng)估:TAS5614L 工作電源電壓:12 V to 38 V |
| MAX98088EWY+T | 功能描述:接口—CODEC Dual I2S Codec RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉(zhuǎn)換速率:48 kSPs 接口類型:I2C ADC 數(shù)量:2 DAC 數(shù)量:4 工作電源電壓:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel |
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