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| 型号： | MAX97000EWA+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 10/34页 |
| 文件大小： | 0K |
| 描述： | IC AUDIO SUBSYSTEM 25WLP |
| 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： | 930mW x 1 @ 8 欧姆; 40mW 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： | 25-WLP（2.09x2.09） |
| 封装/外壳： | 25-WFBGA，WLCSP |
| 包装： | 标准包装 |
| 其它名称： | MAX97000EWA+TDKR |
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Audio Subsystem with Mono Class D
Speaker and Class H Headphone Amplifier
MAX97000
18
Pin Description (continued)
Detailed Description
The MAX97000 audio subsystem combines a mono
speaker amplifier with a stereo headphone amplifier
and an analog DPST switch. The high-efficiency 725mW
Class D speaker amplifier operates directly from the bat-
tery 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-referenced signal
that does not require output coupling capacitors. The
headphone and speaker amplifiers have independent
volume control and on/off control. The four inputs are
configurable as two differential inputs or four 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.
Internal Linear Regulator
The MAX97000 includes an internal regulator (LDOIN) to
generate VDD in cases where no 1.8V supply is available.
Using the regulator allows single-supply operation directly
from a Li+ battery. To enable the internal regulator apply
a power supply to LDOIN and do not connect power to
VDD. When not using the internal regulator, leave LDOIN
unconnected and power VDD from a 1.8V supply.
Signal Path
The MAX97000 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 pream-
plification, the input signals are mixed, volume adjusted,
and routed to the headphone and speaker amplifiers
based on the desired configuration.
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
BUMP
NAME
FUNCTION
D1
OUTN
Negative Speaker Output
D2
COM1
Analog Switch 1 Input
D3
COM2
Analog Switch 2 Input
D4
INB1
Input B1. Left or negative input.
D5
INB2
Input B2. Right or positive input.
E1
OUTP
Positive Speaker Output
E2
NC1
Analog Switch 1 Output
E3
NC2
Analog Switch 2 Output
E4
INA1
Input A1. Left or negative input.
E5
INA2
Input A2. Right or positive input.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX97001EVKIT+ | 功能描述:音频 IC 开发工具 MAX97001 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 |
| MAX97001EWP+T | 功能描述:音频放大器 Audio Subsystem w/ Mono Class D 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 |
| MAX97002EVKIT+ | 功能描述:音频 IC 开发工具 MAX97002 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 |
| MAX97002EWP+T | 功能描述:音频放大器 Audio Subsystem w/ Mono Class D 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 |
| 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 |
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