高通(Qualcomm)藍牙芯片QCC5151_硬件設計詳細指導書(官方內部培訓手冊)共52頁其內容是針對硬件設計、部分重要元器件選擇(ESD,Filter)及走線注意事項的詳細說明。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 (天線 走線的注意事項)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
上傳時間: 2022-01-24
上傳用戶:XuVshu
高通(Qualcomm)藍牙芯片QCC5144_硬件設計詳細指導書(官方內部培訓手冊)其內容是針對硬件設計、部分重要元器件選擇(ESD,Filter)及走線注意事項的詳細說明。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 (天線 走線的注意事項)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
上傳時間: 2022-04-07
上傳用戶:默默
AP3852 是一款擁有 CPU 和 DSP 雙核的智能音頻/語音處理芯片。芯片內置有 32 位 CPU 和 32 位 DSP 以及 2M FLASH,配合豐富的外圍控制接口,非常適合各 種智能音頻/語音處理系統。 該芯片配合菁音科技各種專利音頻處理算法,能處理從聲音輸入、噪聲消除、 音頻預補償、音效處理到聲音回放的一個完整的音頻通路;僅需配備簡單的外圍 器件即可組成高品質的音頻輸入/回放系統。能極大的提升產品的性能。 芯片內置 32Bits CPU,擁有良好的開發環境;內置 32Bits 音效處理 DSP,支 持浮點數運算、支持 FFT,方便各種進行各種算法編寫;此外,為增加運算能力, 芯片還內置有一塊專用的 Hardware Engine 單元,特別適合高速 FIR/IIR 運算。 芯片內置24Bits的Audio Codec,具有較高的SNR、THD。內置112KBytesSRAM; 內置 32 位 OTP Key,支持用戶程序加密。 具有豐富的外圍接口,包括 Full Speed USB Device、10Bits SAR ADC、SPI、I2C、 I2S、UART、GPIO 等。
上傳時間: 2022-07-07
上傳用戶:
USB 源碼 ISP1581 Device controller
標簽: controller Device 1581 USB
上傳時間: 2015-03-05
上傳用戶:梧桐
PIC MCU USB Keyboard/Mouse Combination Device C sample
標簽: Combination Keyboard Device sample
上傳時間: 2015-03-27
上傳用戶:xjz632
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.
標簽: Device USB Audio implements
上傳時間: 2015-04-16
上傳用戶:VRMMO
USBarmLP2148 This is a USB Memory Device demonstration for the Keil MCB2140 Board with Philips LPC2148.
標簽: demonstration USBarmLP Philips Memory
上傳時間: 2013-12-14
上傳用戶:rocwangdp
s3c44b0,開發板上測試usb的host/device的源程序,ads調試通過
上傳時間: 2013-11-25
上傳用戶:cxl274287265
LPC2142 虛擬U盤源程序 KEIL工程 This is a USB Memory Device demonstration for the Keil MCB2140 Board with Philips LPC2142.
標簽: demonstration Device Memory Board
上傳時間: 2014-12-03
上傳用戶:huql11633
Keil-At91sam7S64-USB 2.0 full speed device
上傳時間: 2014-07-27
上傳用戶:huannan88