914
此人體感應(yīng)藍(lán)牙耳機(jī)，主要由QUALCOMM藍(lán)牙CSR8670芯片和SEMTECH公司的SX9310傳感器芯片，兩部分組成的高端人體感應(yīng)藍(lán)牙耳機(jī)。對比其他的藍(lán)牙耳機(jī)，額外具備“當(dāng)來電 或 音樂時，耳機(jī)可以檢測是否為佩戴狀態(tài)，以決定語音 或 音樂是否轉(zhuǎn)回手機(jī)播放”高級功能。
SX9310 是電容比吸收率控制器（SAR）。擁有三個感應(yīng)器件( CS0, CS1, CS2)，可以使用其三個中的兩個來精確地連接到SAR的智能引擎,來做無生命的物體和人體區(qū)分。第三個傳感器輸入可獨(dú)立用于標(biāo)準(zhǔn)電容傳感。I2C的通信接口，在檢測到接近物時由NIRQ腳輸出信號。SX9310包含一個片上的自校正控制器,定期進(jìn)行敏感度調(diào)整以保持在寬溫度變化下的峰值性能，濕度和噪聲環(huán)境，提供簡化產(chǎn)品開發(fā)和提高性能。
實(shí)物圖：
核心技術(shù)優(yōu)勢
CSR8670 Features:
■ Bluetooth® v4.0 specification fully qualified
software
■ Radio includes integrated balun
■ 80MHz RISC MCU and 80MIPS Kalimba DSP
■ 16Mb internal flash memory (64-bit wide, 45ns);
optional support for 64Mb of external SPI flash
■ Stereo codec with 2 channels of ADC and up to 6
microphone inputs (includes bias generators and
digital microphone support)
■ Support for CSR's latest CVC technology for
narrow-band and wideband voice connections
including wind noise reduction
■ Audio interfaces: I²S, PCM and SPDIF
■ Serial interfaces: UART, USB 2.0 full-speed, I²C
■ Integrated dual switch-mode regulators, linear
regulators and battery charger
■ 3 hardware LED controllers (for RGB) and ability
to drive LCD segment display directly
■ Support for up to 6 capacitive touch sensor inputs
■ 6.5 x 6.5 x 1mm, 0.5mm pitch 112?ball VFBGA
■ Green (RoHS compliant and no antimony or
halogenated flame retardants)
方案規(guī)格
SX9310 PRODUCT FEATURES
■ 2.7 – 5.5V Core Supply (VDD)
* 1.65 – 2V Host Interface Supply (SVDD)
* 1.65 – 5.5V Compliant Host Interface (VPULL)
■ Up to 3 SAR Capacitive Sensor Inputs
* Patented On-Chip Smart Engine For SAR (Body versusInanimate Object Detection)
* Capacitance Resolution down to 0.08 fF
* Capacitance Offset Compensation up to 100 pF
* Integrated RF Shield
* Advanced Temperature Compensation
■ Automatic Calibration
■ Built-in Start-up Proximity Detection
■ Ultra Low Power Consumption
* Active Mode: 70 uA
* Doze Mode: 8 uA
* Sleep Mode: 2.5 uA
■ 400kHz I2C Serial Interface
■ Programmable Interrupt or Real-Time Status Pin
■ User NVM for Custom Default Registers Values(Standalone Mode)
■ Two Reset Sources: POR, Soft Reset
■ -40°C to +85°C Operation
■ Compact Size: 1.36 x 1.33 mm WLCSP package
■ Pb & Halogen Free, RoHS/WEEE compliant
方案來源于大大通。
