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參數資料
| 型號： | MAX9776EVKIT+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數： | 1/38頁 |
| 文件大?。?/td> | 0K |
| 描述： | EVALUATION KIT FOR MAX9776 |
| 產品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 1 |
| 系列： | DirectDrive® |
| 放大器類型： | D 類 |
| 輸出類型： | 1-通道（單聲道），帶立體聲耳機 |
| 在某負載時最大輸出功率 x 通道數量： | 1.5W x 1 @ 4 歐姆; 60mW x 2 @ 16 歐姆 |
| 電源電壓： | 2.7 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 85°C |
| 板類型： | 完全填充 |
| 已用 IC / 零件： | MAX9776 |
| 已供物品： | 板，CD |
| 相關產品： | MAX9776EBX+TG45-ND - IC AMP AUDIO PWR 1.5W MONO 36WLP MAX9776ETJ+T-ND - IC AMP AUDIO PWR 1.5W D 32TQFN MAX9776ETJ+-ND - IC AMP AUDIO PWR 1.5W D 32TQFN |
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General Description
The MAX9775/MAX9776 combine a high-efficiency
Class D, stereo/mono audio power amplifier with a
mono DirectDrive receiver amplifier and a stereo
DirectDrive headphone amplifier.
Maxim’s 3rd-generation, ultra-low-EMI, Class D audio
power amplifiers provide Class AB performance with
Class D efficiency. The MAX9775/MAX9776 deliver
1.5W per channel into a 4Ω load from a 5V supply and
offer efficiencies up to 79%. Active emissions limiting
circuitry and spread-spectrum modulation greatly
reduce EMI, eliminating the need for output filtering
found in traditional Class D devices.
The MAX9775/MAX9776 utilize a fully differential archi-
tecture, a full-bridged output, and comprehensive click-
and-pop suppression. A 3D stereo enhancement
function allows the MAX9775 to widen the stereo sound
field immersing the listener in a cleaner, richer sound
experience than typically found in portable applications.
The devices utilize a flexible, user-defined mixer archi-
tecture that includes an input mixer, volume control, and
output mixer. All control is done through I2C.
The mono receiver amplifier and stereo headphone
amplifier use Maxim’s DirectDrive architecture that pro-
duces a ground-referenced output from a single supply,
eliminating the need for large DC-blocking capacitors,
saving cost, space, and component height.
The MAX9775 is available in a 36-bump WLP (3mm x
3mm) package. The MAX9776 is available in a 32-pin
TQFN (5mm x 5mm) or a 36-bump WLP (3mm x 3mm)
package. Both devices are specified over the extended
-40°C to +85°C temperature range.
Applications
Cell Phones
Portable Multimedia Players
Handheld Gaming Consoles
Features
Unique Spread-Spectrum Modulation and Active
Emissions Limiting Significantly Reduces EMI
3D Stereo Enhancement (MAX9775 Only)
Up to 3 Stereo Inputs
1.5W Stereo Speaker Output (4Ω, VDD = 5V)
50mW Mono Receiver/Stereo Headphone Outputs
(32Ω, VDD = 3.3V)
High PSRR (68dB at 217Hz)
79% Efficiency (VDD = 3.3V, RL = 8Ω, POUT =
470mW)
I2C Control—Input Configuration, Volume Control,
Output Mode
Click-and-Pop Suppression
Low Total Harmonic Distortion (0.03% at 1kHz)
Current-Limit and Thermal Protection
Available in Space-Saving, 36-Bump WLP (3mm x
3mm) and 32-Pin TQFN (5mm x 5mm) Packages
MAX9775/MAX9776
2 x 1.5W, Stereo Class D Audio Subsystem
with DirectDrive Headphone Amplifier
________________________________________________________________
Maxim Integrated Products
1
Ordering Information
MAX9775
MIXER/
MUX
GAIN
CONTROL
3D
SOUND
CONTROL
I2C
INTERFACE
SINGLE SUPPLY 2.7V TO 5.5V
MAX9776
MIXER/
MUX
GAIN
CONTROL
I2C
INTERFACE
SINGLE SUPPLY 2.7V TO 5.5V
Simplified Block Diagrams
19-0746; Rev 4; 8/08
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.
Pin Configurations appear at end of data sheet.
PART
PIN-PACKAGE
CLASS D
AMPLIFIER
MAX9775EBX+T
36 WLP*
Stereo
MAX9776ETJ+
32 TQFN-EP**
Mono
MAX9776EBX+T
36 WLP*
Mono
Note: All devices are specified over the -40°C to +85°C oper-
ating temperature range.
+
Denotes a lead-free/RoHS-compliant package.
*
Four center bumps depopulated.
**
EP = Exposed pad.
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 |
|---|---|
| MAX9776EVKIT+ | 功能描述:音頻 IC 開發工具 MAX9776 Eval Kit 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 |
| MAX9777ETI+ | 功能描述:音頻放大器 Integrated Circuits (ICs) RoHS:否 制造商:STMicroelectronics 產品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| MAX9777ETI+T | 功能描述:音頻放大器 Integrated Circuits (ICs) RoHS:否 制造商:STMicroelectronics 產品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| MAX9778ETI+ | 功能描述:音頻放大器 Integrated Circuits (ICs) RoHS:否 制造商:STMicroelectronics 產品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| MAX9778ETI+T | 功能描述:音頻放大器 Integrated Circuits (ICs) RoHS:否 制造商:STMicroelectronics 產品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
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