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| 型号： | MAX97002EWP+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 10/37页 |
| 文件大小： | 0K |
| 描述： | IC AUDIO SUBSYSTEM 20WLP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 系列： | DirectDrive® |
| 类型： | D 类 |
| 输出类型： | 1-通道（单声道），带立体声耳机 |
| 在某负载时最大输出功率 x 通道数量： | 920mW x 1 @ 8 欧姆; 37mW x 2 @ 16 欧姆 |
| 电源电压： | 2.7 V ~ 5.5 V |
| 特点： | 消除爆音，差分输入，I²C，静音，关闭，音量控制 |
| 安装类型： | 表面贴装 |
| 供应商设备封装： | 20-WLP |
| 封装/外壳： | 20-WFBGA，WLBGA |
| 包装： | 标准包装 |
| 其它名称： | MAX97002EWP+TDKR |
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Audio Subsystem with Mono Class D
Speaker and Class H Headphone Amplifiers
MAX97002
18
Detailed Description
The MAX97002 mono audio subsystem combines a
mono speaker amplifier with a stereo headphone ampli-
fier and an analog DPST switch. The high-efficiency
700mW Class D speaker amplifier operates directly
from the battery and consumes no more than 1FA when
in shutdown mode. The headphone amplifier utilizes a
dual-mode charge pump and a Class H output stage
to maximize efficiency while outputting a ground-ref-
erenced signal that does not require output coupling
capacitors. The headphone and speaker amplifiers
have independent volume control and on/off control.
The 4 inputs are configurable as 2 differential inputs or
4 single-ended inputs. All control is performed using the
2-wire I2C interface.
The speaker amplifier incorporates a distortion limiter to
automatically reduce the volume level when excessive
clipping occurs. This allows high gain for low-level sig-
nals without compromising the quality of large signals.
Signal Path
The MAX97002 signal path consists of flexible inputs,
signal mixing, volume control, and output amplifiers
(Figure 2). The inputs can be configured for single-
ended or differential signals (Figure 3). The internal
preamplifiers feature programmable gain settings using
internal resistors and an external gain setting using a
trimmed internal feedback resistor. The external option
allows any desired gain to be selected. Following pre-
amplification, the input signals are mixed, volume adjust-
ed, and routed to the headphone and speaker amplifiers
based on the desired configuration.
Mixers
The MAX97002 features independent mixers for the left
headphone, right headphone, and speaker paths. Each
output can select any combination of any inputs. This
allows for mixing two audio signals together and rout-
ing independent signals to the headphone and speaker
amplifiers. If one of the inputs is not selected by either
mixer, it is automatically powered down to save power.
Class D Speaker Amplifier
The MAX97002 Class D speaker amplifier utilizes active
emissions limiting and spread-spectrum modulation to
minimize the EMI radiated by the amplifier.
Figure 2. Signal Path
-64dB TO +6dB
MIXER
AND
MUX
INA2
INA1
INB2
INB1
0/3dB
-64dB TO +6dB
0/3dB
-30dB TO +20dB
+12dB
INPUT A
-6dB TO +18dB
INPUT B
-6dB TO +18dB
相关PDF资料 |
PDF描述 |
|---|---|
| MAX97003EWP+T | IC AUDIO SUBSYSTEM LN 20WLP |
| MAX9700AEUB+ | IC AMP AUDIO 1.6W MONO D 10MSOP |
| MAX9701ETG+T | IC AMP AUDIO PWR 2.2W D 24TQFN |
| MAX9702ETI+T | IC AMP AUDIO PWR 1.8W D 28TQFN |
| MAX9704ETJ+ | IC AMP AUDIO PWR 16W STER 32TQFN |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX97003EVKIT# | 功能描述:音频 IC 开发工具 MAX97003 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 |
| MAX97003EWP+ | 制造商:Maxim Integrated Products 功能描述:AUDIO SUBSYSTEM - Rail/Tube |
| MAX97003EWP+T | 功能描述:音频放大器 Audio Subsystem 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 |
| MAX9700AEBC | 制造商:Maxim Integrated Products 功能描述:1.2W LOW EMI FILTERLESS CLASS D - Rail/Tube |
| MAX9700AEBC+ | 制造商:Maxim Integrated Products 功能描述:AUD AMP SPKR 1CH MONO 1.6W CLS-D 12UCSP - Rail/Tube |
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