参数资料
| 型号： | AT73C246-EK1 |
| 厂商： | Atmel |
| 文件页数： | 1/2页 |
| 文件大小： | 0K |
| 描述： | KIT EVALUATION FOR AT73C246 |
| 标准包装： | 1 |
| 系列： | * |
| 主要目的： | * |
| 嵌入式： | * |
| 已用 IC / 零件： | * |
| 主要属性： | * |
| 次要属性： | * |
| 已供物品： | * |
Power Management and Analog Companions (PMAAC)
AT73C246
Power Management Unit and Stereo Audio Codec
Multimedia systems such as portable media players are typically built around a microcontroller, memories,
wireless communications ICs and audio input/output devices. The keys to their success are their audio
quality and their power efficiency.
Atmel’s AT73C246 is the ideal power management unit and stereo audio interface for such systems. It
integrates, in a single device, a high-quality audio codec and multiple power supplies that are precisely
adapted to the requirements of an MCU-based multimedia system. In particular, the AT73C246 is designed
to interface directly to Atmel’s AT91SAM9 and AT91CAP9 families of ARM9?- based microcontrollers and
their DDR2 memories.
The AT73C246 reduces the system chip count by replacing a number of discrete voltage regulators.
Operating from a single 2.9V to 5.5V power supply, it provides precisely calibrated voltages to all the other
components of the system, and enables these components to be powered down selectively when not
required. This keeps system power consumption to a minimum under all conditions of use.
The AT73C246 also provides high quality audio. It multiplexes the stereo inputs from two microphones, a
line in and an auxiliary input, and provides stereo output for headphones or an external speaker amplifier.
The audio inputs can be channeled directly to the output or digitized and transferred to the MCU for
recording or processing. In playback mode, digital signals originating from the MCU are converted to
high-fidelity analog for output.
By its high level of integration, precisely calibrated power supplies, configurable power management and
high-quality audio, the AT73C246 reduces the cost, board space and power consumption of a wide range
of multimedia applications while enhancing the sound quality.
ATMEL PRODUCT
2.9V - 5.5V
VBackup LDO 2.5V
Rechargeable
Backup Battery
FM Receiver
Aux In
AT73C246
DC/DC 1.8V/600mA
Control: TWI
DDR2 Memory
CAP9, AVR32
Line In
2 x Mic In
Line Out
POWER
MANAGEMENT
UNIT
&
STEREO
Digital Audio: I 2 S
Reset
DC/DC 1.2V/600mA
LDO 1V/300mA
LDO 3.3V/200mA
MICROCONTROLLER
e.g. SAM7, SAM9
Core
Core
Input/Output
AUDIO CODEC
Headset
AT73C246 Application Example
Wakeup
BlueTooth
WiFi
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AT73C260B | 功能描述:多媒体杂项 NGD MONOLITHIC NUMERIC IC RoHS:否 制造商:Texas Instruments 类型: 通道数量: 转换速率:540 Mbps 分辨率: 封装 / 箱体:SOIC-16 封装:Tube |
| AT73C500 | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:Chip Set Solution for Watt-Hour Meters |
| AT73C500-JC | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Power Metering |
| AT73C501 | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:Chip Set Solution for Watt-Hour Meters |
| AT73C501-JC | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog-to-Digital Converter， 16-Bit |
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