参数资料
| 型号： | AT73C209-EK |
| 厂商： | Atmel |
| 文件页数： | 2/63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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The 32-Ohms pair of stereo-headset drivers also includes a LINEL and LINER channel-mixer
pair of stereo inputs.
Every DAC can be powered down separately via internal register control. Each single left or right
DAC can be directed in MONO mode to the stereo headset and line outputs while the other is
set in off mode.
In addition, a microphone preamplifier with a microphone bias switch is integrated, reducing
external ICs and saving board space.
The volume, mute, power down, de-emphasis controls and 16-bit, 18-bit and 20-bit audio for-
mats are digitally programmable via a 4-wire SPI bus and the digital audio data is provided
through a multi-format I2S interface.
The Power Management section can tolerate several types of input supply, such as:
? Battery: voltage is converted to 3.3V via a DC/DC step up converter using 1 external inductor,
1 schottky diode and a capacitor.
– Disposable AA or AAA size
– coin cell size, 1 cell, as low as 0.9V for alkaline
? USB: 5V VBUS supply from a USB connector or a Lithium-Ion battery
The Power Management section also includes a set of low dropout (LDO) voltage regulators
with different voltages to supply specific chip and analog requirements:
? LDO1 is designed to drive up to 150 mA from a USB port with 9-step programmable output
voltages: 2.7V, 2.8V, 2.9V, 3.0V, 3.1V, 3.2V, 3.3V, 3.4V, 3.5V. Default voltage is 3.4V and
represents the initial output voltage of LDO1 at start up. When RSTB is activated, the
external MCU can change the output voltage via the SPI serial interface. This LDO is
designed to supply the complete chip when the device is connected to a USB port.
? LDO2 is designed to drive up to 60 mA from LDO1 with 4-step programmable output
voltages: 2.4V, 2.6V, 2.8V, 3.0V with low noise and high PSRR. Default voltage is 3.0V and
represents the initial output voltage of LDO2 at start up. When RSTB is activated, the MCU
can change the output voltage via the SPI serial interface. This LDO is designed to supply the
internal analog section.
2
AT73C209
6365A–PMAAC–12-Mar-08
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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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