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参数资料
| 型号： | MAX9853ETM+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/71页 |
| 文件大小： | 0K |
| 描述： | IC CODEC AUDIO STEREO 48TQFN |
| 标准包装： | 43 |
| 类型： | 立体声音频 |
| 数据接口： | 串行 |
| 分辨率（位）： | 18 b |
| ADC / DAC 数量： | 2 / 2 |
| 三角积分调变： | 是 |
| S/N 比，标准 ADC / DAC (db)： | 81.5 / 88 |
| 动态范围，标准 ADC / DAC (db)： | 82 / 87.5 |
| 电压 - 电源，模拟： | 2.6 V ~ 3.3 V |
| 电压 - 电源，数字： | 1.7 V ~ 3.3 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 48-WFQFN 裸露焊盘 |
| 供应商设备封装： | 48-TQFN-EP（7x7） |
| 包装： | 管件 |
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MAX9851/MAX9853
Stereo Audio CODECs with Microphone, DirectDrive
Headphones, Speaker Amplifiers, or Line Outputs
________________________________________________________________ Maxim Integrated Products
1
19-3732; Rev 2; 7/07
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
General Description
The MAX9851/MAX9853 are single-chip, stereo audio
CODECs designed to provide a complete audio solu-
tion for a GSM/GPRS/EDGE cell phone. The MAX9851/
MAX9853 provide stereo DirectDriveTM headphone
amplifiers, a mono receiver speaker amplifier, stereo
Class D speaker amplifiers (MAX9851 only), stereo dif-
ferential line outputs (MAX9853 only), microphone input
amplifiers, plus flexible input selection and gain control.
Two serial digital audio interfaces are included, one
intended to accept voiceband data and the other
accepting I2S data. The voiceband interface can be
reconfigured as needed to act as a secondary I2S feed
input—allowing multiple audio source mixing of ringer
tones or other audio at different sample rates. A trans-
ducer/vibrator signal can be derived from digital audio.
The stereo digital-to-analog converter (DAC) path
includes filtering and mixing, programmable-gain ampli-
fiers (PGA), soft muting, and optional voiceband digital
filtering. The MAX9851/MAX9853 accept up to two digital
audio inputs at different sample rates. All analog inputs
have PGAs on the front end, allowing dynamic range
optimization with a wide range of input sources.
The stereo analog-to-digital converter (ADC) converts
audio signals from either internal or external microphones
or stereo line inputs. The microphone amplifiers have a
programmable gain from 0 to 40dB to handle both ampli-
fied microphones and electret modules. In addition to a
digital highpass filter to remove DC offset voltages, the
ADC also features voiceband digital filtering.
The digital audio interfaces support a variety of serial
audio formats. The secondary serial audio interface has
an independent supply voltage to allow integration into
multiple supply systems. Control for volume levels, sig-
nal mixing, and operating modes is done through the
I2C 2-wire interface.
All circuitry is optimized for high PSRR. The MAX9851/
MAX9853 use a thermally efficient, space-saving 48-pin
thin QFN package (7mm x 7mm x 0.8mm) with an
exposed pad.
Applications
GSM/GPRS/EDGE Cell Phones
PDAs/SmartPhones
Features
+1.7V to +3.3V (Digital) and +2.6V to +3.3V
(Analog) Operation
+2.6V to +5.5V Class D Speaker Amplifier
Operation (Direct from Battery)
Low 26mW Quiescent Power Consumption
(Playback)
High 98dB Power-Supply Rejection Ratio
8kHz to 48kHz Sample Rate (Replay and Record)
Stereo 18-Bit ADC and DAC
Low-Noise Stereo Microphone Inputs and Stereo
Line Inputs
Dual Source Digital Mixing (DAC)
Selectable Voiceband Filter for
Recording/Playback Modes
Digital Filtering, Soft Mute, and Volume Control
Low-Noise, High-PSRR Microphone Bias
Generator
Stereo DirectDrive Headphone Amplifier
(2 x 50mW)
Mono DirectDrive Handset Receiver Amplifier
(1 x 105mW)
Stereo Class D, Ultra-Low-EMI, Filterless Speaker
Amplifier with Active Emissions Limiting
(2 x 1.25W, 8
Ω) (MAX9851)
Stereo Differential Line Output Amplifiers
(MAX9853)
Clickless/Popless Operation
Flexible Shutdown Modes for Power Saving
Comprehensive Headset Detection
Ultra-Low Power Wake-Up on Headset Detection
PART
PIN-PACKAGE
PKG CODE
MAX9851ETM+
48 TQFN-EP*
(7mm x 7mm x 0.8mm)
T4877-6
MAX9853ETM+
48 TQFN-EP*
(7mm x 7mm x 0.8mm)
T4877-6
Ordering Information
Pin Configurations and Selector Guide appear at end of data
sheet.
Note: All devices specified over the -40°C to +85°C temperature
range.
+Denotes lead-free package.
*EP = Exposed pad.
EVALUATION
KIT
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| MAX9851ETM+ | IC CODEC AUDIO STEREO 48TQFN-EP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX9853ETM+ | 功能描述:接口—CODEC Stereo Audio CODEC w/DirectDrive Amp 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 |
| MAX9853ETM+T | 功能描述:接口—CODEC Stereo Audio CODEC w/DirectDrive Amp 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 |
| MAX9853EVCMODU | 功能描述:音频 IC 开发工具 Evaluation Kit/Evaluation System for the MAX9853 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 |
| MAX9853EVKIT | 功能描述:音频 IC 开发工具 Evaluation Kit/Evaluation System for the MAX9853 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 |
| MAX9856ATL/V+ | 功能描述:接口—CODEC Low-Power Audio Codec With Directdrive. Headphone Amplifiers 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 |
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