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參數(shù)資料
| 型號： | MAX9867ETJ+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 44/55頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC STEREO AUD CODEC LP 32TQFN-EP |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 類型： | 立體聲音頻 |
| 數(shù)據(jù)接口： | I²C，串行 |
| 分辨率（位）： | 18 b |
| ADC / DAC 數(shù)量： | 2 / 2 |
| 三角積分調(diào)變： | 是 |
| 動態(tài)范圍，標(biāo)準(zhǔn) ADC / DAC (db)： | 85 / 90 |
| 電壓 - 電源，模擬： | 1.65 V ~ 1.95 V |
| 電壓 - 電源，數(shù)字： | 1.65 V ~ 1.95 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 32-WFQFN 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 32-TQFN-EP（5x5） |
| 包裝： | 帶卷 (TR) |
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MAX9867
Ultra-Low Power Stereo Audio Codec
______________________________________________________________________________________
49
ACKNOWLEDGE FROM MAX9867
1 BYTE
AUTOINCREMENT INTERNAL
REGISTER ADDRESS POINTER
ACKNOWLEDGE FROM MAX9867
A
AP
0
ACKNOWLEDGE FROM MAX9867
R/W
S
R/W
REPEATED START
Sr
1
SLAVE ADDRESS
REGISTER ADDRESS
SLAVE ADDRESS
DATA BYTE
Figure 15. Reading n Bytes of Data from the MAX9867
Applications Information
Proper layout and grounding are essential for optimum
performance. When designing a PCB for the MAX9867,
partition the circuitry so that the analog sections of the
MAX9867 are separated from the digital sections. This
ensures that the analog audio traces are not routed
near digital traces.
Use a large continuous ground plane on a dedicated
layer of the PCB to minimize loop areas. Connect
AGND and DGND directly to the ground plane using
the shortest trace length possible. Proper grounding
improves audio performance, minimizes crosstalk
between channels, and prevents any digital noise from
coupling into the analog audio signals.
Ground the bypass capacitors on MICBIAS, REG,
PREG, and REF directly to the ground plane with mini-
mum trace length. Also be sure to minimize the path
length to AGND. Bypass AVDD directly to AGND.
Connect all digital I/O termination to the ground plane
with minimum path length to DGND. Bypass DVDD and
DVDDIO directly to DGND.
Route microphone signals from the microphone to the
MAX9867 as a differential pair, ensuring that the posi-
tive and negative signals follow the same path as close-
ly as possible with equal trace length. When using
single-ended microphones or other single-ended audio
sources, ground the negative microphone input as near
as possible to the audio source and then treat the posi-
tive and negative traces as differential pairs.
The MAX9867 TQFN package features an exposed
thermal pad on its underside. Connect the exposed
thermal pad to AGND.
An evaluation kit (EV Kit) is available to provide an
example layout for the MAX9867. The EV kit allows
quick setup of the MAX9867 and includes easy-to-use
software, allowing all internal registers to be controlled.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX9867EVKIT+ | 功能描述:音頻 IC 開發(fā)工具 MAX9867 Eval Kit RoHS:否 制造商:Texas Instruments 產(chǎn)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 |
| MAX9867EWV+ | 制造商:Maxim Integrated Products 功能描述:LOW-POWER, STEREO AUDIO CODEC - Rail/Tube |
| MAX9867EWV+T | 功能描述:接口—CODEC Stereo Audio CODEC for Portable Devices RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉(zhuǎn)換速率:48 kSPs 接口類型:I2C ADC 數(shù)量:2 DAC 數(shù)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(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel |
| MAX986ESA | 功能描述:校驗器 IC Single uPower Comparator RoHS:否 制造商:STMicroelectronics 產(chǎn)品: 比較器類型: 通道數(shù)量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補償電壓（最大值）:6 mV 電源電流（最大值）:1350 nA 響應(yīng)時間: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel |
| MAX986ESA+ | 功能描述:校驗器 IC Single uPower Comparator RoHS:否 制造商:STMicroelectronics 產(chǎn)品: 比較器類型: 通道數(shù)量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補償電壓（最大值）:6 mV 電源電流（最大值）:1350 nA 響應(yīng)時間: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel |
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