參數(shù)資料
型號(hào)： AT73C213
廠商： ATMEL CORP
元件分類(lèi)： 電源管理
英文描述： Power Management for Mobiles (PM) / Audio Interface for Portable Handsets
中文描述： 1-CHANNEL POWER SUPPLY SUPPORT CKT, QCC32
封裝： MO-220, QFN-32
文件頁(yè)數(shù)： 1/35頁(yè)
文件大?。?/td> 754K
代理商： AT73C213
Features
Stereo Audio DAC
– 2.7V to 3.3V Analog Supply Operation
– 2.4V to 3.3V Digital Supply Operation
– 20-bit Stereo Audio DAC
– 93 dB SNR Playback Stereo Channels
– 32 Ohm/20 mW Stereo Headset Drivers with Master Volume and Mute Controls
– Stereo Line Level Input with Volume Control/mute and Playback through the
Headset Drivers
– Differential Monaural Auxiliary Input, with Volume Control/mute and Playback
through the Headset Drivers
– Accepts Mixed Signals from All Signal Paths (Line Inputs, External Mono and DAC
Output)
– 8, 11.024, 16, 22.05, 24, 32, 44.1 and 48 kHz Sampling Rates
– 256x or 384xFs Master Clock Frequency
– I2S Serial Audio Interface
Mono Audio Power Amplifier
– Supply Input from Main Li-Ion Battery
– 440mW on 8 Ohm Load
– Low Power Mode for Earphone
– Programmable Volume Control (-22 to +20 dB)
– Fully Differential Structure, Input and Output
– 8 mA Drain Current in Full Power Mode
– Power-down mode (Consumption Less than 2uA)
– Minimum External Components (Direct Connection of the Loudspeaker)
Applications: Mobile Phones, Digital Cameras, PDAs, SmartPhones, DECT Phones,
Music Players
1.
The AT73C213 is a fully integrated, low-cost, combined stereo audio DAC and audio
power amplifier circuit targeted for Li-Ion or Ni-Mh battery powered devices such as
mobile phones, smartphones, PDA, DECT phones, digital still cameras, music players
or any other type of handheld device where an audio interface is needed.
Description
The stereo DAC section is a complete high performance, stereo audio digital-to-ana-
log converter delivering a 93 dB dynamic range. It comprises a multibit sigma-delta
modulator with dither, continuous time analog filters and analog output drive circuitry.
This architecture provides a high insensitivity to clock jitter. The digital interpolation fil-
ter increases the sample rate by a factor of 8 using 3 linear phase half-band filters
cascaded, followed by a first order SINC interpolator with a factor of 8. This filter elim-
inates the images of baseband audio, retaining only the image at 64x the input sample
rate, which is eliminated by the analog post filter. Optionally, a dither signal can be
added that reduces possible noise tones at the output. However, the use of a multibit
sigma-delta modulator already provides extremely low noise tone energy.
Master clock is from 256 or 384 times the input data rate, allowing choice of input data
rate up to 50 kHz, including standard audio rates of 48, 44.1, 32, 16 and 8 kHz.
The DAC section is followed by a volume and mute control and can be simultaneously
played back directly through a stereo 32 Ohm headset pair of drivers.
Power
Management for
Mobiles (PM)
AT73C213
Audio Interface
for Portable
Handsets
2744A–PMGMT–27-Jan-05
相關(guān)PDF資料
PDF描述
AT73C239 Power Management for Mobiles (PM)
AT73C501 Chip Set Solution for Watt-Hour Meters
AT73C500 ER 9C 6#16 3#12 PIN RECP BOX
AT73C502 Chip Set Solution for Watt-Hour Meters
AT75C110 Digital Telephone Answering Device(數(shù)字電話應(yīng)答設(shè)備)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AT73C213B 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC Stereo DAC + Cls AB Amp for portables RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量: 分辨率:16 bit 接口類(lèi)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
AT73C213-EK 功能描述:開(kāi)發(fā)板和工具包 - ARM AT73C213 EVALUATION BOARD RoHS:否 制造商:Arduino 產(chǎn)品:Development Boards 工具用于評(píng)估:ATSAM3X8EA-AU 核心:ARM Cortex M3 接口類(lèi)型:DAC, ICSP, JTAG, UART, USB 工作電源電壓:3.3 V
AT73C214 制造商:ATMEL 制造商全稱(chēng):ATMEL Corporation 功能描述:Power Management and Battery Charger for Wireless Devices
AT73C214J 制造商:ATMEL 制造商全稱(chēng):ATMEL Corporation 功能描述:Power Management and Battery Charger for Wireless Devices
AT73C221 功能描述:其他電源管理 NGD MONOLITHIC NUMERIC IC RoHS:否 制造商:Texas Instruments 輸出電壓范圍: 輸出電流:4 mA 輸入電壓范圍:3 V to 3.6 V 輸入電流: 功率耗散: 工作溫度范圍:- 40 C to + 110 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-48 封裝:Reel
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