CSR8670 Datasheet – Audio System-On-Chip Solution

Part Number : CSR8670, CSR8670C‑IBBH‑R

Function : Low-power Solution for DSP Intensive Audio Applications

Package : VFBGA 112‑ball

Manufactures : Cambridge Silicon Radio ( http://www.csr.com/ )



The BlueCore CSR8670 BGA consumer audio platform for wired and wireless applications integrates an ultra-low-power DSP and application processor with embedded flash memory, a high-performance stereo codec, a power management subsystem, LED and LCD drivers and capacitive touch sensor inputs in a SOC IC. The dual-core architecture with flash memory enables manufacturers to easily differentiate their products with new features without extending development cycles.

CSR’s popular BlueCore5-Multimedia platform is software-portable to the BlueCore® CSR8670 BGA, with easy migration of a broad range of solutions from CSR’s eXtension partners. This migration enables rapid time-to-market deployment of a broad range of consumer electronics products.
The enhanced Kalimba DSP coprocessor with 80MIPS supports enhanced audio and DSP applications.





1. Bluetooth Radio
(1) On-chip balun (50Ω impedance in TX and RX modes)
(2) No external trimming is required in production
(3) Bluetooth v3.0 specification compliant

2.Bluetooth Transmitter
(1) 10dBm RF transmit power with level control from on-chip
(2) 6-bit DAC over a dynamic range >30dB
(3) Class 1, Class 2 and Class 3 support without the need for an external power amplifier or TX/RX switch

3. Bluetooth Receiver
(1) Receiver sensitivity of -90dBm
(2) Integrated channel filters
(3) Digital demodulator for improved sensitivity and cochannel rejection
(4) Real-time digitised RSSI available to application
(5) Fast AGC for enhanced dynamic range
(6) Channel classification for AFH

Official Homepage : http://www.csr.com/products/63/csr8670


1. Home Entertainment Ecosystem
(1) TVs
(2) Smart remote controllers
(3) Wired or wireless soundbars
(4) Wired or wireless speakers and headphones

2. Tablets / PCs / Mobile Connectivity
(1) Wearable audio (on-the-go)
(2) Wearable audio with sensors (health and wellbeing applications)
(3) Wired or wireless stereo headphones for music/ gaming/multimedia content
(4) Wired or wireless speakers
(5) Wired or wireless speakerphones
(6) Mono headsets for voice

CSR8670 Datasheet