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參數資料
| 型號： | MAX9856ETL+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數： | 1/46頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC CODEC AUDIO LP 40TQFN-EP |
| 產品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 50 |
| 類型： | 音頻編解碼器 |
| 數據接口： | 串行 |
| 分辨率（位）： | 18 b |
| ADC / DAC 數量： | 2 / 2 |
| 三角積分調變： | 是 |
| S/N 比，標準 ADC / DAC (db)： | 77 / 91 |
| 動態(tài)范圍，標準 ADC / DAC (db)： | 85 / 91 |
| 電壓 - 電源，模擬： | 1.71 V ~ 3.6 V |
| 電壓 - 電源，數字： | 1.71 V ~ 3.6 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 40-WFQFN 裸露焊盤 |
| 供應商設備封裝： | 40-TQFN-EP（5x5） |
| 包裝： | 管件 |
| 產品目錄頁面： | 1392 (CN2011-ZH PDF) |
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General Description
The MAX9856 is a high-performance, low-power stereo
audio CODEC designed for MP3, personal media play-
ers (PMPs), or other portable multimedia devices.
Using on-board stereo DirectDrive headphone ampli-
fiers, the CODEC can output 30mW into stereo 32
Ω
headphones while operating from a single 1.8V power
supply. Very low 9mW playback power consumption
makes it an ideal choice for battery-powered applica-
tions. The MAX9856 provides microphone input ampli-
fiers, plus flexible input selection, signal mixing, and
automatic gain control (AGC). Comprehensive load-
impedance sensing allows the MAX9856 to autodetect
most common audio and audio/video headset and jack
plug types.
Outputs include stereo DirectDrive line outputs and
DirectDrive headphone amplifiers. The stereo ADC can
convert audio signals from either internal or external
microphones that can be configured for single-ended
or differential signal inputs. Line inputs can be config-
ured as stereo, differential, or mono and fed through
one channel of the microphone path. The analog inputs
selected can be gain ranged or mixed with other input
sources prior to conversion to digital. The ADC path
also features programmable digital highpass filters to
remove DC offset voltages and wind noise.
The MAX9856 supports all common sample rates from
8kHz to 48kHz in both master and slave mode. The ser-
ial digital audio interfaces support a variety of formats
including I2S, left-justified, and PCM modes.
The MAX9856 uses a thermally efficient, space-saving
40-pin, 6mm x 6mm x 0.8mm TQFN package.
Applications
MP3 Players
Personal Media Players
Handheld Gaming Consoles
Cellular Phones
Features
o 1.71V to 3.6V Single-Supply Operation
o Stereo 30mW DirectDrive Headphone Amplifier
o Stereo 1VRMS DirectDrive Line Outputs
(VDD = 1.8V) and Stereo Line Inputs
o Low-Noise Stereo and Mono Differential
Microphone Inputs with Automatic Gain Control
and Noise Quieting
o 9mW Playback Power Consumption (VDD = 1.8V)
o 91dB 96kHz 18-Bit Stereo DAC
o 85dB 48kHz 18-Bit Stereo ADC
o Supports Any Master Clock Frequency from
10MHz to 60MHz
o ADCs and DACs Can Run at Independent Sample
Rates
o Flexible Audio Mixing and Volume Control
o Clickless/Popless Operation
o Headset Detection Logic
o I2C Control Interface
MAX9856
Low-Power Audio CODEC with
DirectDrive Headphone Amplifiers
________________________________________________________________
Maxim Integrated Products
1
PART
TEMP RANGE
PIN-PACKAGE
MAX9856ETL+
-40°C to +85°C
40 TQFN-EP*
MAX9856GTL/V+
-40°C to +105°C
40 TQFN-EP*
Ordering Information
AUXIN
LINEIN1
LINEIN2
SDOUT
SDIN
BCLK
LRCLK_D
LRCLK_A
SDA
SCL
IRQ
MUX
DIGITAL
INTERFACE
DAC
ANALOG
MIXERS
DAC
ADC
I2C
DIGITAL
FILTERING
AND
MIXERS
DVDD AND DVDDS2
1.71V TO 3.6V
AVDD AND CPVDD
1.71V TO 3.6V
LEFT LINE
OUT
RIGHT LINE
OUT
DIFF
MIC
LEFT
EXT
MIC
RIGHT
EXT
MIC
CLOCK
CONTROL
MCLK
MAX9856
Simplified Block Diagram
19-1288; Rev 2; 12/11
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.
EVALUATION
KIT
AVAILABLE
+
Denotes a lead-free/RoHS-compliant package.
*
EP = Exposed pad.
/V denotes an automotive qualified part.
Pin Configuration appears at end of data sheet.
DirectDrive is a registered trademark of Maxim Integrated
Products, Inc.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX9856ETL/V+ | 功能描述:接口—CODEC Low-Power Audio Codec With Directdrive. Headphone Amplifiers RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉換速率:48 kSPs 接口類型:I2C ADC 數量:2 DAC 數量:4 工作電源電壓:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel |
| MAX9856ETL/V+T | 功能描述:接口—CODEC Low-Power Audio Codec With Directdrive. Headphone Amplifiers RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉換速率:48 kSPs 接口類型:I2C ADC 數量:2 DAC 數量:4 工作電源電壓:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel |
| MAX9856ETL+ | 功能描述:接口—CODEC Stereo Audio CODEC w/DirectDrive Amp RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉換速率:48 kSPs 接口類型:I2C ADC 數量:2 DAC 數量:4 工作電源電壓:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel |
| MAX9856ETL+T | 功能描述:接口—CODEC Stereo Audio CODEC w/DirectDrive Amp RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉換速率:48 kSPs 接口類型:I2C ADC 數量:2 DAC 數量:4 工作電源電壓:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel |
| MAX9856EVKIT+ | 功能描述:音頻 IC 開發(fā)工具 Evaluation Kit for the MAX9856 RoHS:否 制造商:Texas Instruments 產品:Evaluation Kits 類型:Audio Amplifiers 工具用于評估:TAS5614L 工作電源電壓:12 V to 38 V |
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