CSR8635

Contact Sales

Single Chip Bluetooth Audio ROM Platform

The CSR8635 QFN single-chip Bluetooth audio ROM device targets mid-range stereo speakers and headsets.

CSR8635 and Qualcomm Kalimba are products of Qualcomm Technologies, Inc., and/or its subsidiaries.

Specifications

Bluetooth

Specification Version: Bluetooth 4.1

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

Links: Dual A2DP, Dual eSCO

Maximum Output Power (typical): Up to 8 dBm

Receiver Sensitivity (basic rate, typical): -91 dBm

USB

USB Version: USB 2.0 (Full Speed)

USB Support: Supports USB charger detection

DSP

DSP Technology: Qualcomm® Kalimba™ DSP

MCU

MCU Clock Speed: 80MHz MCU

Audio

Qualcomm® cVc™ Echo Cancellation and Noise Suppression (ECNS) technology: Qualcomm® cVc™ Echo Cancellation and Noise Suppression

Other Audio Capturing Technologies: Talk-Time Extension

Other Audio Processing: 5-band EQ

Charging

Maximum Current: 200 mA on chip, 500 mA with external transistor

Memory

RAM: 56 KB RAM

Interface

Supported Interfaces: I²S, I²C, PCM, SPI, UART

Input/Output

ADC: 1 ADC

DAC: 1 DAC

Maximum PIOs: 22

PWM (LED): 3

Package

Package Type: QFN

Pitch: 0.4mm Pitch

Size: 8 x 8 x 0.9 mm

Compare related products.

Product
CSR8635 Chipset
CSR8645 Chipset
CSR8640 Chipset
CSR8630 Chipset
CSR8620 Chipset
CSR8615 Chipset
CSR8610 Chipset
CSR8605 Chipset

Receiver Sensitivity (basic rate, typical)	MCU Clock Speed	Other Audio Capturing Technologies	Microphone	Package Type	Size
-91 dBm	80MHz MCU	Talk-Time Extension	—	QFN	8 x 8 x 0.9 mm
-92 dBm	80MHz MCU	HD Voice Talk-Time Extension	2 analog mics 1 microphone bias generator 2 digital mics	VFBGA	5.5 x 5.5 x 1 mm
-92 dBm	80MHz MCU	HD Voice Talk-Time Extension	2 analog mics 1 microphone bias generator 2 digital mics	VFBGA	5.5 x 5.5 x 1 mm
-91 dBm	80MHz MCU	Talk-Time Extension	—	QFN	8 x 8 x 0.9 mm
-92 dBm	80MHz MCU	HD Voice Talk-Time Extension	2 analog mics 1 microphone bias generator 2 digital mics	VFBGA	5.5 x 5.5 x 1 mm
-91 dBm	80MHz MCU	Talk-Time Extension	1 analog mic 1 digital mic	QFN	8 x 8 x 0.9 mm
-92 dBm	80MHz MCU	Talk-Time Extension	1 analog mic 1 microphone bias generator 1 digital mic	VFBGA WLCSP	3.92 x 3.68 x 0.6 mm ¹ 5.5 x 5.5 x 1 mm ²
-91 dBm	80MHz MCU	Talk-Time Extension	—	—	8 x 8 x 0.9 mm

WLCSP
VFBGA

Access more.

To access more CSR8635 resources, you need to be a member of a verified company. Company verification is initiated by filling out our access request form.

Learn more

Already have a Qualcomm account?

About Qualcomm Careers Offices Contact Us Support Email Subscriptions

References to "Qualcomm" may mean Qualcomm Incorporated, or subsidiaries or business units within the Qualcomm corporate structure, as applicable.

Qualcomm Incorporated includes Qualcomm's licensing business, QTL, and the vast majority of its patent portfolio. Qualcomm Technologies, Inc., a wholly-owned subsidiary of Qualcomm Incorporated, operates, along with its subsidiaries, substantially all of Qualcomm's engineering, research and development functions, and substantially all of its products and services businesses. Qualcomm products referenced on this page are products of Qualcomm Technologies, Inc. and/or its subsidiaries.

Materials that are as of a specific date, including but not limited to press releases, presentations, blog posts and webcasts, may have been superseded by subsequent events or disclosures.

Nothing in these materials is an offer to sell any of the components or devices referenced herein.