CSR8640 Dual-mode Bluetooth Audio VFBGA SoC with cVc noise cancellation support

Bluetooth® audio ROM platform with Qualcomm® cVc™ noise cancellation technology for entry level to mid-range audio devices.

The CSR8640 dual-mode ROM audio SoC offers various capabilities found in the CSR8670 SoC, including cVc noise cancellation technology in a ROM-based package, ideal for entry-level ...

The CSR8640 dual-mode ROM audio SoC offers various capabilities found in the CSR8670 SoC, including cVc noise cancellation technology in a ROM-based package, ideal for entry-level to mid-range wireless audio products with support for voice and music. The CSR8640 is part of the CSR86xx portfolio, a range of silicon platforms for wireless audio applications which integrate a dual-mode Bluetooth radio, a low power DSP, an application processor, a battery charger, memory and various audio and hardware interfaces into a single-chip solutio...

CSR8640, Qualcomm cVc and Qualcomm Kalimba are products of Qualcomm Technologies, Inc., and/or its subsidiaries.

Product license agreement

Ideal for entry-level to mid-range wireless audio products

The CSR8640 SoC has a reduced feature set supporting the essential features expected from Bluetooth audio products while providing cost efficiency for entry-level products.

Integrated single-chip solution for smaller designs

Application processor, Bluetooth and Bluetooth low energy radios, DSP and memory integrated into a single SoC helps reduce system complexity and eBOM while supporting small form factor designs.

No software development required

Pre-loaded Bluetooth and audio applications allow manufacturers to develop end-products without writing code, while customization tools support quick modification of device behaviour and user interface.

cVc 6th generation 2-mic audio technology

cVc technology is a suite of algorithms designed to work on the transmit and receive path of voice calls to deliver optimum voice quality on Bluetooth headsets, handsets, hands-free devices, and automotive.

CSR8640 Block Diagram

Features

Bluetooth 4.0 specification compliant
Flexible ROM-based platform with fully configurable MMI and tool chain
Support for various profiles including: HFP 1.6, A2DP 1.2 AVRCP 1.4
80MHz Qualcomm® Kalimba™ DSP with integrated multipoint A2DP and HFP audio applications
2-mic cVc 6th Generation voice processing technology with wideband speech
Audio tuning suite with audio enhancements and 5-band EQs
Internal ROM, serial flash memory and EEPOM interfaces
MP3, AAC and SBC audio codecs
GAIA V1 and associated Android and iOS apps for connectivity with mobile devices
Reference speaker and headset applications pre-loaded on the ROM
Fast charging support up to 200mA with no external components
Pin compatible with CSR8645

Specifications

CPU

Clock Speed

Up to 80 MHz

DSP

Name

Qualcomm® Kalimba™

Bluetooth

Specification Version

Bluetooth® 4.1

Links

Dual eSCO, Dual A2DP

Classic Profiles

Bluetooth® Advanced Audio Distribution Profile (A2DP) 1.2, Bluetooth® Hands-Free Profile (HFP) 1.6, Bluetooth® Audio/Video Remote Control Profile (AVRCP) 1.4, Bluetooth® Headset Profile (HSP) 1.2, Bluetooth® Device ID Profile (DIP) 1.3

Maximum Output Power (typical)

Up to 9 dBm

Receiver Sensitivity (Basic Rate, typical)

Down to -92 dBm

Audio

Qualcomm® cVc™ Echo Cancelling and Noise Suppression (ECNS) technology support

Qualcomm® cVc™ Echo Cancelling and Noise Suppression

Other Audio Capturing Technologies

HD Voice, Talk-Time Extension

Other Audio Processing Technologies

5-band EQ

Charging

Maximum Current

200 mA1, 500 mA2

On chip
With external transistor

Compare related products.

Product	Status	CPU Clock Speed	Bluetooth Receiver Sensitivity (Basic Rate, typical)	Audio Other Audio Capturing Technologies	Digital Microphones Number of Interfaces	Package Type	Package Size
CSR8605 Chipset	End of life	Up to 80 MHz	Down to -91 dBm	Talk-Time Extension	—	—	8 × 8 × 0.9 mm
CSR8635 Chipset	Not for new designs	Up to 80 MHz	Down to -91 dBm	Talk-Time Extension	—	QFN	8 × 8 × 0.9 mm
CSR8645 Chipset	Not for new designs	Up to 80 MHz	Down to -92 dBm	HD Voice Talk-Time Extension	2	VFBGA	5.5 × 5.5 × 1 mm
CSR8640 Chipset	Not for new designs	Up to 80 MHz	Down to -92 dBm	HD Voice Talk-Time Extension	2	VFBGA	5.5 × 5.5 × 1 mm
CSR8630 Chipset	Not for new designs	Up to 80 MHz	Down to -91 dBm	Talk-Time Extension	—	QFN	8 × 8 × 0.9 mm
CSR8620 Chipset	End of life	Up to 80 MHz	Down to -92 dBm	HD Voice Talk-Time Extension	2	VFBGA	5.5 × 5.5 × 1 mm
CSR8615 Chipset	Not for new designs	Up to 80 MHz	Down to -91 dBm	Talk-Time Extension	1	QFN	8 × 8 × 0.9 mm
CSR8610 Chipset	Not for new designs	Up to 80 MHz	Down to -92 dBm	Talk-Time Extension	1	WLCSP VFBGA	5.5 × 5.5 × 1 mm ¹ VFBGA 3.92 × 3.68 × 0.6 mm ² WLCSP

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5.5 × 5.5 × 1 mm

8 × 8 × 0.9 mm

3.92 × 3.68 × 0.6 mm

	Status	CPU Clock Speed	Bluetooth Receiver Sensitivity (Basic Rate, typical)	Audio Other Audio Capturing Technologies	Digital Microphones Number of Interfaces	Package Type	Package Size
CSR8605 Chipset	End of life	Up to 80 MHz	Down to -91 dBm	Talk-Time Extension	—	—	8 × 8 × 0.9 mm
CSR8635 Chipset	Not for new designs	Up to 80 MHz	Down to -91 dBm	Talk-Time Extension	—	QFN	8 × 8 × 0.9 mm
CSR8645 Chipset	Not for new designs	Up to 80 MHz	Down to -92 dBm	HD Voice Talk-Time Extension	2	VFBGA	5.5 × 5.5 × 1 mm
CSR8640 Chipset	Not for new designs	Up to 80 MHz	Down to -92 dBm	HD Voice Talk-Time Extension	2	VFBGA	5.5 × 5.5 × 1 mm
CSR8630 Chipset	Not for new designs	Up to 80 MHz	Down to -91 dBm	Talk-Time Extension	—	QFN	8 × 8 × 0.9 mm
CSR8620 Chipset	End of life	Up to 80 MHz	Down to -92 dBm	HD Voice Talk-Time Extension	2	VFBGA	5.5 × 5.5 × 1 mm
CSR8615 Chipset	Not for new designs	Up to 80 MHz	Down to -91 dBm	Talk-Time Extension	1	QFN	8 × 8 × 0.9 mm
CSR8610 Chipset	Not for new designs	Up to 80 MHz	Down to -92 dBm	Talk-Time Extension	1	WLCSP VFBGA	5.5 × 5.5 × 1 mm ¹ VFBGA 3.92 × 3.68 × 0.6 mm ² WLCSP

VFBGA
WLCSP

Development tools and purchase options.

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DK-8640-10061-2A QUALCOMM

Development Board / Kit

BlueCore Transceiver; Bluetooth® Smart 4.x Low Energy (BLE) For Use With CSR8640

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