CSR8670

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CSR8670 Bluetooth Audio SoC

Embedded Flash Solution for Bluetooth Audio Applications

The CSR8670 SoC is an audio system-on-chip (SoC) solution with wireless connectivity, embedded flash memory and integrated capacitive touch sensors, enabling the creation of feature rich home entertainment and wearable audio products with a highly compelling user experience and superior audio performance.

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CSR8670 Specs

Bluetooth

Bluetooth Version

  • Bluetooth 5.0

Bluetooth Radio

  • +10dBm maximum output power (typical)
  • -90dBm receiver sensitivity (basic rate, typical)

USB

USB Version

  • USB 2.0 (Full Speed)

USB Support

  • Supports USB charger detection

Audio

Audio Technology

  • Qualcomm® aptX™ codec technology
  • Qualcomm® cVc™ audio technology
  • Qualcomm TrueWireless™ Technology
  • 16 bit audio data path

Analog Microphone Input

  • 2 analog mics/line inputs (up to 96kHz sample rate)

Digital Microphone Input

  • 6 digital mics

Analog DAC output

  • 2 analog DAC channels (up to 192kHz sample rate)

Microphone Bias Generator

  • 2 microphone bias generators

Qualcomm® aptX™ playback support

  • aptX Classic

DSP

DSP Technology

  • Qualcomm® Kalimba™ DSP

DSP Bit Architecture

  • 24-bit

DSP Clock Speed

  • 80 MHz

MCU

MCU Clock Speed

  • 80MHz

Power Management

Maximum Input Voltage

  • 3.3V

Charging

Maximum Current

  • 200 mA on chip
  • 500 mA with external transistor

Memory

RAM

  • 56KB RAM

Flash

  • 16MB
  • Up to 64 MB external flash

Interface

Supported Interfaces

  • UART
  • Master I²C
  • 1x PCM/I²S
  • 1x SPDIF

Input/Output

ADC

  • 2 ADCs

DAC

  • 2 DACs

Maximum PIOs

  • 29

PWM (LED)

  • 3

Input

Touch Sensor Inputs

  • 6 touch sensor inputs

Package

Package Type

  • VFBGA
  • WLCSP
  • 4.7 x 4.8 x 0.6 mm 0.5 mm pitch WLCSP
  • 6.5 x 6.5 x 1 mm 0.5 mm pitch VFBGA

Pitch

  • 0.5mm

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