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参数资料
| 型号： | MAX9724AEVKIT+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 5/19页 |
| 文件大小： | 0K |
| 描述： | EVALUATION KIT FOR MAX9724A/B |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 系列： | DirectDrive® |
| 放大器类型： | AB 类 |
| 输出类型： | 耳机，2-通道（立体声） |
| 在某负载时最大输出功率 x 通道数量： | 63mW x 2 @ 32 欧姆 |
| 电源电压： | 2.7 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 板类型： | 完全填充 |
| 已用 IC / 零件： | MAX9724A |
| 已供物品： | 板 |
| 相关产品： | MAX9724AEBC+TG45-ND - IC AMP AUDIO .045W STER 12UCSP MAX9724DEBC+TG45-ND - IC AMP AUDIO .045W STER 12UCSP MAX9724CEBC+TG45-ND - IC AMP AUDIO .045W STER 12UCSP MAX9724CETC+T-ND - IC AMP AUDIO .063W STER 12TQFN MAX9724DETC+T-ND - IC AMP AUDIO .063W STER 12TQFN MAX9724DETC+-ND - IC AMP AUDIO .063W STER 12TQFN MAX9724CETC+-ND - IC AMP AUDIO .063W STER 12TQFN MAX9724BEBC+TG45-ND - IC AMP AUDIO .045W STER 12UCSP MAX9724AEUD+-ND - IC AMP AUDIO .045W STER 14TSSOP MAX9724AETC+T-ND - IC AMP AUDIO .045W STER 12TQFN 更多... |
MAX9724A/MAX9724B
60mW, DirectDrive, Stereo Headphone Amplifier
with Low RF Susceptibility and Shutdown
______________________________________________________________________________________
13
Lineout Amplifier and Filter Block
The MAX9724A can be used as an audio line driver
capable of providing 2VRMS into 10kΩ loads with a sin-
gle 5V supply (see Figure 4 for the RMS Output Voltage
vs. Supply Voltage plot). 2VRMS is a popular audio line
level, first used in CD players, but now common in DVD
and set-top box (STB) interfacing standards. A 2VRMS
sinusoidal signal equates to approximately 5.7VP-P,
which means that the audio system designer cannot
simply run the lineout stage from a (typically common)
5V supply—the resulting output swing would be inade-
quate. A common solution to this problem is to use op
amps driven from split supplies (±5V typically), or to
use a high-voltage supply rail (9V to 12V). This can
mean adding extra cost and complexity to the system
power supply to meet this output level requirement.
Having the ability to derive 2VRMS from a 5V supply, or
even 3.3V supply, can often simplify power-supply
design in some systems.
When the MAX9724A is used as a line driver to provide
outputs that feed stereo equipment (receivers, STBs,
notebooks, and desktops) with a digital-to-analog con-
verter (DAC) used as an audio input source, it is often
desirable to eliminate any high-frequency quantization
noise produced by the DAC output before it reaches
the load. This high-frequency noise can cause the input
stages of the line-in equipment to exceed slew-rate lim-
itations or create excessive EMI emissions on the
cables between devices.
LEFT
AUDIO
INPUT
RIGHT
AUDIO
INPUT
OUTL
INL
INR
OUTR
MAX9724A
7.5k
Ω
7.5k
Ω
7.5k
Ω
7.5k
Ω
15k
Ω
10k
Ω
10k
Ω
15k
Ω
1.2nF
220pF
LINE IN DEVICE
STEREO
DAC
1
μF
1
μF
Figure 5. MAX9724A Line Out Amplifier and Filter Block Configuration
RMS OUTPUT VOLTAGE
vs. SUPPLY VOLTAGE
SUPPLY VOLTAGE (V)
RMS
OUTPUT
VOLTAGE
(V)
5.0
4.5
4.0
3.5
3.0
2.0
2.5
3.0
3.5
1.5
2.5
5.5
RL = 10k
Ω
1% THD+N
fIN = 1kHz
RL = 1k
Ω
1% THD+N
LIMITED BY
ABS. MAXIMUM
RATINGS
Figure 4. RMS Output Voltage vs. Supply Voltage
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX9724AEVKIT+ | 功能描述:音频 IC 开发工具 MAX9724A/B Eval Kit RoHS:否 制造商:Texas Instruments 产品:Evaluation Kits 类型:Audio Amplifiers 工具用于评估:TAS5614L 工作电源电压:12 V to 38 V |
| MAX9724BEBC+ | 制造商:Maxim Integrated Products 功能描述:AUD AMP HDPH 2CH STEREO 0.045W CLS-AB 12UCSP - Rail/Tube |
| MAX9724BEBC+T | 制造商:Maxim Integrated Products 功能描述:LOW RF SUSCEPTIBILITY DIRECTDRIVE S 制造商:Maxim Integrated Products 功能描述:AUD AMP HDPH 2CH STEREO 0.045W CLS-AB 12UCSP - Tape and Reel |
| MAX9724BEBC+TG45 | 功能描述:音频放大器 60mW DirectDrive Headphone 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 |
| MAX9724BETC | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
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