参数资料
| 型号： | AT73C209-EK |
| 厂商： | Atmel |
| 文件页数： | 1/63页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL FOR AT73C209 |
| 标准包装： | 1 |
| 系列： | PMAAC™ |
| 主要目的： | 电源管理，专用型: 手机 |
| 已用 IC / 零件： | AT73C209 |
| 已供物品： | 板，CD，文档 |
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Features
? Power Management
– Supply Input from USB or 1x Disposal Battery (Alkaline, NimH, NiCd)
– Input Voltage Range: 0.9V to 1.8V
– 2.7V/2.9V/3.1V/3.3V - 100 mA Step-Up DC/DC Converter for Main Supply
– 2.7V to 3.5V (100mV step) - 150 mA LDO from USB supply
– 2.4V to 3.0V (200mV step) - 60 mA LDO for Analog Supply
– Reset Generator
– SPI Interface and Internal Programming Registers
– Dynamic Power Management
– Very Low Quiescent Current Operation
? Stereo Audio DAC
– Programmable Stereo Audio DAC (16-bits, 18-bits or 20-bits)
– 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 Driver
– Microphone Preamplifier
– Stereo, Mono and Reverse Stereo Mixer
– Left/Right Speaker Short-Circuit Detection Flag
– 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
– Low Power Operation
? Applications:
Power
Management
and Analog
Companions
(PMAAC)
AT73C209
Audio and Power
Management
– Ideally Suited to Interface with Atmel’s AT8xC51SNDxC MP3 Microcontroller
– Portable Music Players, Digital Cameras, CD Players, Handheld GPS
1. Description
The AT73C209 is a fully integrated, low cost, combined Stereo Audio DAC and Power
Management Circuit targeted for battery powered devices such as MP3 players in
“walkman” format or “mass storage” USB format.
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
cascaded filters, followed by a first order SINC interpolator with a sample-rate factor of
8. This filter eliminates 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 provides extremely low noise tone energy.
Master clock is 256 or 384 times the input data rate, allowing multiple choice of input
data rate up to 48 kHz, including standard audio rates of 48, 44.1, 32, 16 and 8 kHz.
The DAC section also comprises volume and mute control and can be simultaneously
played back directly on the line outputs and through a 32-Ohms stereo headset.
6365A–PMAAC–12-Mar-08
相关PDF资料 |
PDF描述 |
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| AT73C212-EK | BOARD EVAL FOR AT73C212 |
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| AT73C221-EK | BOARD EVAL FOR AT73C221 |
| AT73C224-EK1 | KIT EVALUATION FOR AT73C224 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AT73C211 | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:Power Management |
| AT73C211-CI | 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 |
| AT73C211-EK | 功能描述:开发板和工具包 - ARM AT73C211 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 |
| AT73C211-ZI | 功能描述:IC POWER MANAGEMENT 48FBGA 制造商:microchip technology 系列:- 包装:带卷（TR） 零件状态:停產 应用:电源管理 - 手持设备 电流 - 电源:- 电压 - 电源:- 工作温度:-20°C ~ 85°C 封装/外壳:48-FBGA 基本零件编号:AT73C211 标准包装:2,500 |
| AT73C212 | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:Power Management for Mobiles (PM) |
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