参数资料
型号: MAX9860EVKIT+
厂商: Maxim Integrated Products
文件页数: 21/38页
文件大小: 0K
描述: KIT EVALUATION FOR MAX9860
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 1
系列: *
MAX9860
16-Bit Mono Audio Voice Codec
28
Maxim Integrated
Microphone Inputs
The MAX9860 provides two differential microphone
inputs and a low-noise 1.55V microphone bias for power-
ing the microphones. In typical applications, the left
microphone is used to record a voice signal and the
right microphone is used to record a background noise
signal. In applications that require only one microphone,
use the left microphone input and disable the right ADC.
The microphone signals are amplified by two stages of
gain and then routed to the ADCs. The first stage offers
selectable 0dB, 20dB, or 30dB settings. The second
stage is a programmable gain amplifier (PGA) adjustable
from 0dB to 20dB in 1dB steps. Zero-crossing detection
is included on the PGA to minimize zipper noise while
making gain changes. See Figure 5 for a detailed dia-
gram of the microphone input structure.
MICLN
MICLP
MICBIAS
AGC
PGA
-
PREAMP
MICRN
ADC
L
ADC
R
MICRP
REG
1.55V
0/20/30dB
0dB to +20dB
VCM
0/20/30dB
MICGND
PREAMP
MAX9860
Figure 5. Microphone Input Block Diagram
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相关代理商/技术参数
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MAX9860EVKIT+ 功能描述:音频 IC 开发工具 MAX9860 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
MAX9867ETJ+ 功能描述:接口—CODEC Stereo Audio CODEC for Portable Devices RoHS:否 制造商:Texas Instruments 类型: 分辨率: 转换速率:48 kSPs 接口类型:I2C ADC 数量:2 DAC 数量:4 工作电源电压:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-81 封装:Reel
MAX9867ETJ+T 功能描述:接口—CODEC Stereo Audio CODEC for Portable Devices RoHS:否 制造商:Texas Instruments 类型: 分辨率: 转换速率:48 kSPs 接口类型:I2C ADC 数量:2 DAC 数量:4 工作电源电压:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-81 封装:Reel
MAX9867EVKIT+ 功能描述:音频 IC 开发工具 MAX9867 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
MAX9867EWV+ 制造商:Maxim Integrated Products 功能描述:LOW-POWER, STEREO AUDIO CODEC - Rail/Tube