CSR8635

CSR8635

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Single Chip Bluetooth Audio ROM Platform

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

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

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

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.

Product license agreement

Specifications

DSP

DSP Technology: Qualcomm® Kalimba™ DSP

MCU

MCU Clock Speed: 80MHz MCU

Bluetooth

Bluetooth Version: Bluetooth 4.1

Bluetooth Profiles: HFP v1.6, AVRCP v1.4, A2DP v1.2, DI v1.3, HSP v1.2

A2DP multipoint support: 2 A2DP sources

Bluetooth Radio: Up to +8dBm output power (typical), -91bBm receiver sensitivity (basic rate, typical)

USB

USB Version: USB 2.0 (Full Speed)

USB Support: Supports USB charger detection

General Audio

Audio Technology: Qualcomm® cVc™ audio technology, Talk-Time Extension

Equalizer: 5-band EQ

HFP multipoint support: 2 handsets

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

Package Size: 8 x 8 x 0.9 mm

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    Chipset
    MCU Clock SpeedBluetooth RadioAudio TechnologyMicrophonePackage TypePackage Size
    80MHz MCU
    Up to +8dBm output power (typical)
    -91bBm receiver sensitivity (basic rate, typical)
    Qualcomm® cVc™ audio technology
    Talk-Time Extension
    		—
    QFN
    8 x 8 x 0.9 mm
    80MHz MCU
    Up to +9dBm output power (typical)
    -92dBm receiver sensitivity (basic rate, typical)
    HD Voice
    Voice recognition technology
    Qualcomm® aptX™ audio technology
    Qualcomm® cVc™ audio technology
    Talk-Time Extension
    2 analog mics
    1 microphone bias generator
    2 digital mics
    VFBGA
    5.5 x 5.5 x 1 mm
    80MHz MCU
    Up to +9dBm output power (typical)
    -92dBm receiver sensitivity (basic rate, typical)
    HD Voice
    Voice recognition technology
    Qualcomm® cVc™ audio technology
    Talk-Time Extension
    2 analog mics
    1 microphone bias generator
    2 digital mics
    VFBGA
    5.5 x 5.5 x 1 mm
    80MHz MCU
    Up to +8dBm output power (typical)
    -91bBm receiver sensitivity (basic rate, typical)
    Talk-Time Extension
    		—
    QFN
    8 x 8 x 0.9 mm
    80MHz MCU
    Up to +9dBm output power (typical)
    -92dBm receiver sensitivity (basic rate, typical)
    HD Voice
    Voice recognition technology
    Qualcomm® cVc™ audio technology
    Talk-Time Extension
    2 analog mics
    1 microphone bias generator
    2 digital mics
    VFBGA
    5.5 x 5.5 x 1 mm
    80MHz MCU
    Up to +8dBm output power (typical)
    -91bBm receiver sensitivity (basic rate, typical)
    Qualcomm® cVc™ audio technology
    Talk-Time Extension
    1 analog mic
    1 digital mic
    QFN
    8 x 8 x 0.9 mm
    80MHz MCU
    Up to +9dBm output power (typical)
    -92dBm receiver sensitivity (basic rate, typical)
    Voice recognition technology
    Qualcomm® cVc™ audio technology
    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
    80MHz MCU
    Up to +8dBm output power (typical)
    -91bBm receiver sensitivity (basic rate, typical)
    Talk-Time Extension
    		——
    8 x 8 x 0.9 mm
    1. WLCSP
    2. VFBGA

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