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USB-device

  • 高通(Qualcomm)蓝牙芯片QCC5151_硬件设计详细指导书(官方内部培训手册)

    高通(Qualcomm)蓝牙芯片QCC5151_硬件设计详细指导书(官方内部培训手册)共52页其内容是针对硬件设计、部分重要元器件选择(ESD,Filter)及走线注意事项的详细说明。2 Power management 2.1 SMPS 2.1.1 Components specification 2.1.2 Input power supply selection 2.1.3 Minimize SMPS EMI emissions 2.1.4 Internal LDOs and digital core decoupling 2.1.5 Powering external components 2.2 Charger 2.2.1 Charger connections.2.2.2 General charger operation2.2.3 Temperature measurement during charging 2.3 SYS_CTRL 3 Bluetooth radio3.1 RF PSU component choice 3.2 RF band-pass filter3.3 Layout (天线 走线的注意事项)4 Audio4.1 Audio bypass capacitors 4.2 Earphone speaker output4.3 Line/Mic input 4.4 Headphone output optimizition5 LED pads 5.1 LED driver 5.2 Digital/Button input 5.3 Analog input5.4 Disabled 6 Reset pin (Reset#)7 QSPIinterface 8 USB interfaces 8.1 USB device port8.1.1 USB connections8.1.2 Layout notes8.1.3 USB charger detection

    标签: qualcomm 蓝牙芯片 qcc5151

    上传时间: 2022-01-24

    上传用户:XuVshu

  • 高通蓝牙芯片QCC5144_硬件设计指导书

    高通(Qualcomm)蓝牙芯片QCC5144_硬件设计详细指导书(官方内部培训手册)其内容是针对硬件设计、部分重要元器件选择(ESD,Filter)及走线注意事项的详细说明。2 Power management 2.1 SMPS 2.1.1 Components specification 2.1.2 Input power supply selection 92.1.3 Minimize SMPS EMI emissions 2.1.4 Internal LDOs and digital core decoupling 2.1.5 Powering external components 2.2 Charger 2.2.1 Charger connections.2.2.2 General charger operation2.2.3 Temperature measurement during charging 2.3 SYS_CTRL 3 Bluetooth radio3.1 RF PSU component choice 3.2 RF band-pass filter3.3 Layout (天线 走线的注意事项)4 Audio4.1 Audio bypass capacitors 4.2 Earphone speaker output4.3 Line/Mic input 4.4 Headphone output optimizition5 LED pads 5.1 LED driver 5.2 Digital/Button input 5.3 Analog input5.4 Disabled 6 Reset pin (Reset#)7 USB interfaces7.1 USB device port7.1.1 USB device port7.1.2 Layout notes 7.1.3 USB charger detectionA QCC5144 VFBGA example schematic and BOM B Recommended SMPS components specificationB.1 Inductor specifition B.2 Recommended inductors B.3 SMPS capacitor specifition

    标签: 蓝牙芯片 qcc5144

    上传时间: 2022-04-07

    上传用户:默默

  • USB192K麦克风芯片AP3852芯片规格书

    AP3852 是一款拥有 CPU 和 DSP 双核的智能音频/语音处理芯片。芯片内置有 32 位 CPU 和 32 位 DSP 以及 2M FLASH,配合丰富的外围控制接口,非常适合各 种智能音频/语音处理系统。 该芯片配合菁音科技各种专利音频处理算法,能处理从声音输入、噪声消除、 音频预补偿、音效处理到声音回放的一个完整的音频通路;仅需配备简单的外围 器件即可组成高品质的音频输入/回放系统。能极大的提升产品的性能。 芯片内置 32Bits CPU,拥有良好的开发环境;内置 32Bits 音效处理 DSP,支 持浮点数运算、支持 FFT,方便各种进行各种算法编写;此外,为增加运算能力, 芯片还内置有一块专用的 Hardware Engine 单元,特别适合高速 FIR/IIR 运算。 芯片内置24Bits的Audio Codec,具有较高的SNR、THD。内置112KBytesSRAM; 内置 32 位 OTP Key,支持用户程序加密。 具有丰富的外围接口,包括 Full Speed USB Device、10Bits SAR ADC、SPI、I2C、 I2S、UART、GPIO 等。

    标签: usb192k 麦克风 芯片 ap3852 规格

    上传时间: 2022-07-07

    上传用户:

  • USB 源码 ISP1581 Device controller

    USB 源码 ISP1581 Device controller

    标签: controller Device 1581 USB

    上传时间: 2015-03-05

    上传用户:梧桐

  • PIC MCU USB Keyboard/Mouse Combination Device C sample

    PIC MCU USB Keyboard/Mouse Combination Device C sample

    标签: Combination Keyboard Device sample

    上传时间: 2015-03-27

    上传用户:xjz632

  • LPC2148 USB Audio Device Example This USB example project implements an USB Audio Device that conne

    LPC2148 USB Audio Device Example This USB example project implements an USB Audio Device that connects via the USB interface to the PC. It may be used on the following devices: LPC2141 LPC2142 LPC2144 LPC2146 LPC2148 An USB Audio Device (HID) does not require any special USB driver, since the USB Audio support is already built into Windows 2000 and Windows XP. Therefore USB Audio devices can be directly connected to the computer. This example project is designed to work with Keil MCB2140 Evaluation Board. Refer to Running USBAudio for information on how to operate this example project.

    标签: Device USB Audio implements

    上传时间: 2015-04-16

    上传用户:VRMMO

  • USBarmLP2148 This is a USB Memory Device demonstration for the Keil MCB2140 Board with Philips LPC2

    USBarmLP2148 This is a USB Memory Device demonstration for the Keil MCB2140 Board with Philips LPC2148.

    标签: demonstration USBarmLP Philips Memory

    上传时间: 2013-12-14

    上传用户:rocwangdp

  • s3c44b0,开发板上测试usb的host/device的源程序

    s3c44b0,开发板上测试usb的host/device的源程序,ads调试通过

    标签: device host usb 44

    上传时间: 2013-11-25

    上传用户:cxl274287265

  • LPC2142 虚拟U盘源程序 KEIL工程 This is a USB Memory Device demonstration for the Keil MCB2140 Board with

    LPC2142 虚拟U盘源程序 KEIL工程 This is a USB Memory Device demonstration for the Keil MCB2140 Board with Philips LPC2142.

    标签: demonstration Device Memory Board

    上传时间: 2014-12-03

    上传用户:huql11633

  • Keil-At91sam7S64-USB 2.0 full speed device

    Keil-At91sam7S64-USB 2.0 full speed device

    标签: Keil-At device speed full

    上传时间: 2014-07-27

    上传用户:huannan88