- 您现在的位置：买卖IC网 > PDF目录16621 > AT73C213 (Atmel)IC PWR MGMT FOR MOBILES 32QFN PDF资料下载
参数资料
| 型号： | AT73C213 |
| 厂商： | Atmel |
| 文件页数： | 30/37页 |
| 文件大小： | 0K |
| 描述： | IC PWR MGMT FOR MOBILES 32QFN |
| 标准包装： | 260 |
| 应用： | 手持/移动设备 |
| 电流 - 电源： | 6mA |
| 电源电压： | 3 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 32-VQFN 裸露焊盘 |
| 供应商设备封装： | 32-QFN（7x7） |
| 包装： | 托盘 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页当前第30页第31页第32页第33页第34页第35页第36页第37页
9. Supplies and Start-up
In operating mode, VBAT (supply of the audio power amplifier) must be between 3V and 5.5V
and AVDD, AVDDHS and VDIG must be inferior or equal to VBAT.
A typical application is VBAT connected to a battery and AVDD, AVDDHS and VDIG supplied by
regulators. VBAT must be present at the same time or before AVDD, AVDDHS and VDIG.
RSTB must be active (0) until the voltages are stable and reach the proper values.
To avoid noise issues, it is recommended to use ceramic decoupling capacitors for each supply
The track of the supplies must be optimized to minimize the resistance, especially on VBAT
where all the current from the power amplifier comes from.
HPN and HPP must be routed symmetrically and the resistance must be minimized.
9.1
9.1.1
9.1.2
9.1.3
30
Audio DAC Start-up Sequences
In order to minimize the noise during the start-up, a specific sequence should be applied.
In any audio configuration, always force Bit 2 to high level (“1”) at 0x0B address.
Power on Example
Path DAC to headset output
1. Write @0x10 => 0x03 (deassert the reset)
2. Write @0x0C => 0xFF (precharge + master on)
3. Write @0x00 => 0x30 (ONLNOL and ONLONOR set to 1)
4. Delay 500 ms
5. Write @0x0C => 0x01 (precharge off + master on)
6. Delay 1ms
7. Write @0x00 => 0x3C (ONLNOL, ONLNOR, ONDACR and ONDACL set to 1)
Power off Example
1. Write @0x00 => 0x30 (ONDACR and ONDACL set to 0)
2. Write @0x0C => 0x00 (master off)
3. Delay 1ms
4. Write @0x00 => 0x00 (all off)
I2S Example
In order to prevent I2S from generating noise at the output (for example a MP3 player switching
from one song to another):
1. Set ONDAC to 0 ((bit 4 and 5 in register @0x00)
2. Stop I2S and MCLK
When I2S is restarted, in order to prevent noise generation at the output:
1. Start MCLK
2. Write @0x10 => 0x07 (RSTMSK=1)
3. Write @0x10 => 0x04 (RESFILZ=0, RSTZ=0)
4. Write @0x10 => 0x07 (RESFILZ=1, RSTZ=1)
AT73C213
2744B–PMAAC–11-Apr-08
相关PDF资料 |
PDF描述 |
|---|---|
| VI-B1J-EW | CONVERTER MOD DC/DC 36V 100W |
| EVAL-ADM3051EBZ | EVAL BOARD FOR ADM3051 |
| GBM36DSEH | CONN EDGECARD 72POS .156 EYELET |
| GSM11DSES-S243 | CONN EDGECARD 22POS .156 EYELET |
| ELC-18B272L | COIL CHOKE 2700UH RADIAL |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AT73C213B | 功能描述:音频数/模转换器 IC Stereo DAC + Cls AB Amp for portables RoHS:否 制造商:Texas Instruments 转换器数量: 分辨率:16 bit 接口类型:I2S, UBS 转换速率: 信噪比:98 dB 工作电源电压:5 V DAC 输出端数量:2 工作温度范围:- 25 C to + 85 C 电源电流:23 mA 安装风格:SMD/SMT 封装 / 箱体:TQFP-32 封装:Reel |
| AT73C213-EK | 功能描述:开发板和工具包 - ARM AT73C213 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 |
| 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 |
发布紧急采购，3分钟左右您将得到回复。