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參數(shù)資料
| 型號： | MAX9850ETI |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 消費家電 |
| 英文描述： | Stereo Audio DAC with DirectDrive Headphone Amplifier |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, QCC28 |
| 封裝： | 5 X 5 MM, 0.80 MM PITCH, MO-220WHHD-1, TQFN-28 |
| 文件頁數(shù)： | 1/36頁 |
| 文件大小： | 956K |
| 代理商： | MAX9850ETI |
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General Description
The MAX9850 is a low-power, high-performance stereo
audio DAC with an integrated DirectDrive headphone
amplifier. The MAX9850 is designed to meet the board
space and performance requirements of portable devices
such as cell phones and MP3 and portable DVD players.
The MAX9850 uses Maxim’s patented DirectDrive
headphone technology that produces a ground-biased
analog audio output from a single supply, which allows
for driving the headphones directly from the amplifier
outputs without large DC-blocking capacitors. This fea-
ture saves board space, provides higher click/pop sup-
pression, and improves low-frequency (bass) response.
The architecture does not require the headphone jack
to be biased to a DC voltage and thus allows for a con-
ventional, grounded chassis design.
The MAX9850’s flexible clocking circuitry utilizes any
available system clock up to 40MHz, eliminating the
need for an external PLL and multiple crystal oscillators.
The DAC supports a wide range of sample rates from
8kHz to 48kHz in both master and slave modes, making
the MAX9850 the easiest to use and most versatile audio
DAC available. It can also be operated like traditional
synchronous DACs, at any integer-oversampling ratio.
The audio DAC receives input data over a flexible
3-wire interface that supports up to 32 bits of left-justi-
fied, right-justified, or I
2
S-compatible audio data. Stereo
audio line inputs are provided to either mix analog
audio with the digital input stream, or to drive the head-
phone outputs directly. Mode settings, headphone
amplifier volume controls, and shutdown for both the
headphone and line outputs are programmed through a
2-wire, I
2
C-compatible interface.
The MAX9850 is fully specified over the -40°C to +85°C
extended temperature range and is available in a low-
profile, 28-pin thin QFN package (5mm x 5mm x 0.8mm).
Applications
MP3/Portable Multimedia Players
Cell Phones/Smart Phones
Portable DVD Players
Features
1.8V to 3.6V Single-Supply Operation
30mW Stereo Headphone Output Power with
1.8V Supply
DirectDrive Outputs Eliminate DC-Blocking
Capacitors
91dB PSRR at 1kHz
Any Master Clock Up to 40MHz
Flexible I
2
S-Compatible Digital Audio Interface
I
2
C Headphone Volume and Mute Control
Stereo Line Inputs and Outputs
Clickless/Popless Operation
2-Wire (I
2
C)-Compatible Control Interface
Available in 28-Pin Thin QFN Package
M
Stereo Audio DAC with DirectDrive
Headphone Amplifier
________________________________________________________________
Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
Ordering Information
19-3454; Rev 0; 11/04
Purchase of I
2
C components from Maxim Integrated Products,
Inc. or one of its sublicensed Associated Companies, conveys
a license under the Philips I
2
C Patent Rights to use these com-
ponents in an I
2
C system, provided that the system conforms to
the I
2
C Standard Specification as defined by Philips.
PART
TEMP RANGE
-40°C to +85°C
PIN-PACKAGE
28 Thin QFN-EP*
MAX9850ETI
Pin Configuration appears at end of data sheet.
+
+
DAC
DAC
DIGITAL
AUDIO
DIGITAL
PLL
I
2
C
MAX9850
SDIN
BCLK
LRCLK
SDA
SCL
ADD
GPIO
LINE
OUT
LINE
OUT
OUTR
HPR
HPL
OUTL
INL
INR
1.8V TO 3.6V
MCLK
Block Diagram
*
EP = Exposed Paddle. Package code T2855-6 (see Package
Information section).
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX9850ETI+ | 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC Stereo Audio DAC w/DirectDrive Amp RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量: 分辨率:16 bit 接口類型:I2S, UBS 轉(zhuǎn)換速率: 信噪比:98 dB 工作電源電壓:5 V DAC 輸出端數(shù)量:2 工作溫度范圍:- 25 C to + 85 C 電源電流:23 mA 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel |
| MAX9850ETI+G47 | 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC Stereo Audio DAC w/DirectDrive Amp RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量: 分辨率:16 bit 接口類型:I2S, UBS 轉(zhuǎn)換速率: 信噪比:98 dB 工作電源電壓:5 V DAC 輸出端數(shù)量:2 工作溫度范圍:- 25 C to + 85 C 電源電流:23 mA 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel |
| MAX9850ETI+T | 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC Stereo Audio DAC w/DirectDrive Amp RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量: 分辨率:16 bit 接口類型:I2S, UBS 轉(zhuǎn)換速率: 信噪比:98 dB 工作電源電壓:5 V DAC 輸出端數(shù)量:2 工作溫度范圍:- 25 C to + 85 C 電源電流:23 mA 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel |
| MAX9850ETI+TG47 | 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC Stereo Audio DAC w/DirectDrive Amp RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量: 分辨率:16 bit 接口類型:I2S, UBS 轉(zhuǎn)換速率: 信噪比:98 dB 工作電源電壓:5 V DAC 輸出端數(shù)量:2 工作溫度范圍:- 25 C to + 85 C 電源電流:23 mA 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel |
| MAX9850ETI-T | 制造商:Maxim Integrated Products 功能描述:STEREO AUDIO DAC WITH DIRECTDRIVE HEADPHONE A - Tape and Reel |
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