参数资料
| 型号： | AT73C213-EK |
| 厂商： | Atmel |
| 文件页数： | 1/37页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL FOR AT73C213 |
| 标准包装： | 1 |
| 系列： | PMAAC™ |
| 类型： | 电源管理 |
| 适用于相关产品： | AT73C213 |
| 所含物品： | 评估板、软件和说明文档 |
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Features
? Stereo Audio DAC
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–
–
–
–
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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 2 μA)
– Minimum External Components (Direct Connection of the Loudspeaker)
? Applications: Mobile Phones, Digital Cameras, PDAs, SmartPhones, DECT Phones,
Music Players
1. Description
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.
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
2744B–PMAAC–11-Apr-08
相关PDF资料 |
PDF描述 |
|---|---|
| AT73C221-EK | BOARD EVAL FOR AT73C221 |
| AT73C224-EK1 | KIT EVALUATION FOR AT73C224 |
| AT73C239-EK | KIT EVAL FOR AT73C239 |
| AT73C240-EK1 | KIT EVALUATION FOR AT73C240 |
| AT73C246-EK1 | KIT EVALUATION FOR AT73C246 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AT73C214 | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:Power Management and Battery Charger for Wireless Devices |
| AT73C214J | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:Power Management and Battery Charger for Wireless Devices |
| AT73C221 | 功能描述:其他电源管理 NGD MONOLITHIC NUMERIC IC RoHS:否 制造商:Texas Instruments 输出电压范围: 输出电流:4 mA 输入电压范围:3 V to 3.6 V 输入电流: 功率耗散: 工作温度范围:- 40 C to + 110 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-48 封装:Reel |
| AT73C221-EK | 功能描述:开发板和工具包 - ARM AT73C221 EVALUATION BOARD RoHS:否 制造商:Arduino 产品:Development Boards 工具用于评估:ATSAM3X8EA-AU 核心:ARM Cortex M3 接口类型:DAC, ICSP, JTAG, UART, USB 工作电源电压:3.3 V |
| AT73C221J | 功能描述:电池管理 Monolithic numeric RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
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