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csr8670

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Features

BlueCore

CSR8670™ BGA

■

Bluetooth

v3.0 specification fully qualified

software

■

Bluetooth v4.0 specification compliant hardware

■

Radio includes integrated balun and RF

performance of 10dBm transmit power and

-90dBm receive sensitivity

■

80MHz RISC MCU and 80MIPS Kalimba DSP

■

16Mb internal flash memory (64-bit wide, 45ns);

optional support for 64Mb of external SPI flash

■

Stereo codec with 2 channels of ADC and up to 6

microphone inputs (includes bias generators and

digital microphone support)

■

Support for CSR's latest CVC technology for

narrow-band and wideband voice connections

including wind noise reduction

■

Audio interfaces: I²S, PCM and SPDIF

■

Serial interfaces: UART, USB 2.0 full-speed,

master and slave bit-serialiser (I²C and SPI)

■

Integrated dual switch-mode regulators, linear

regulators and battery charger

■

3 hardware LED controllers (for RGB) and ability

to drive LCD segment display directly

■

Support for up to 6 capacitive touch sensor inputs

■

6.5 x 6.5 x 1mm, 0.5mm pitch 112‑ball VFBGA

■

Green (RoHS compliant and no antimony or

halogenated flame retardants)

Low-power Solution for

DSP Intensive Audio Applications

Production Information

CSR8670C

Issue 2

2. 4GHz

Radio

Balun

I/O

BT_RF

RAM

Baseband

MCU

Kalimba

DSP

FlashXTAL

Serial Flash

Exter nal

Memory

UART/USB

PIO

Audio In / Out

PCM/I

SPDIF

SPI /I

LED /PO

Audio

Interface

Capacitive

Sense

Clock

Gener ation

General Description

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.

Applications

Home Entertainment Ecosystem

■

TVs

■

Smart remote controllers

■

Wired or wireless soundbars

■

Wired or wireless speakers and headphones

Tablets / PCs / Mobile Connectivity

■

Wearable audio (on-the-go)

■

Wearable audio with sensors (health and well-

being applications)

■

Wired or wireless stereo headphones for music/

gaming/multimedia content

■

Wired or wireless speakers

■

Wired or wireless speakerphones

■

Mono headsets for voice

The audio codec supports 2 ADC channels, up to 6

microphone inputs, stereo output and a variety of audio

standards.

See

CSR Glossary

at www.csrsupport.com.

Production Information

This material is subject to CSR's non-disclosure agreement

Page 1 of 116

CS-127997-DSP2

www.csr.com

CSR8670 BGA

Data Sheet

Free Datasheet http://www.datasheetlist.com/

Device Details

Bluetooth Radio

■ On-chip balun (50Ω impedance in TX and RX modes)

■ No external trimming is required in production

■ Bluetooth v3.0 specification compliant

Bluetooth Transmitter

■ 10dBm RF transmit power with level control from on-chip

6-bit DAC over a dynamic range >30dB

■ Class 1, Class 2 and Class 3 support without the need for

an external power amplifier or TX/RX switch

Bluetooth Receiver

■ Receiver sensitivity of -90dBm

■ Integrated channel filters

■ Digital demodulator for improved sensitivity and co-

channel rejection

■ Real-time digitised RSSI available to application

■ Fast AGC for enhanced dynamic range

■ Channel classification for AFH

Bluetooth Synthesiser

■ Fully integrated synthesiser requires no external VCO,

varactor diode, resonator or loop filter

■ Compatible with crystals 19.2MHz to 42MHz or an external

clock 19.2MHz to 42MHz

■ Accepts 19.2, 19.44, 19.68, 19.8 and 38.4MHz TCXO

frequencies for GSM and CDMA devices with sinusoidal

or logic level signals

Kalimba DSP

■ Enhanced Kalimba DSP coprocessor, 80MIPS, 24‑bit

fixed point core

■ 2 single-cycle MACs; 24 x 24-bit multiply and 56-bit

accumulator

■ 32-bit instruction word, dual 24-bit data memory

■ 12K x 32-bit program RAM including 1K instruction cache

for executing out of internal flash

■ 32K x 24-bit + 32K x 24-bit 2-bank data RAM

Audio Interfaces

■ Audio codec with 2 high-quality dedicated ADCs

■ 2 microphone bias generators and up to 2 analogue

microphone inputs

■ Up to 6 digital microphone (MEMS) inputs

■ G.722 compatible, includes improved digital FIR filter path

for stop-band attenuation required for G.722 compliance

■ Enhanced side-tone gain control

■ Supported sample rates of 8, 11.025, 16, 22.05, 32, 44.1,

48 and 96kHz (DAC only)

Baseband and Software

■ 16Mb internal flash

■ Memory protection unit supporting accelerated VM

■ 56KB internal RAM, enables full-speed data transfer,

mixed voice/data and full piconet support

■ Logic for forward error correction, header error control,

access code correlation, CRC, demodulation, encryption

bit stream generation, whitening and transmit pulse

shaping

■ Transcoders for A-law, µ-law and linear voice via PCM and

A-law, µ-law and CVSD voice over air

Physical Interfaces

■UART interface

■ USB 2.0 interface (full-speed)

■ Master and slave bit-serialiser (I²C and SPI)

■ Up to 29 PIOs, i.e. 14 general purpose PIOs and unused

digital interfaces are available as PIOs

■ SPI debug and programming interface with read access

disable locking

■ PCM, I²S and SPDIF interfaces

■ Dual/quad external serial flash memory interface

■ 3 LED drivers (includes RGB) with PWM flasher on sleep

clock

■ Support for up to 6 capacitive touch sensor inputs

Integrated Power Control and Regulation

■ 2 high-efficiency switch-mode regulators with 1.8V and

1.35V outputs from battery supply

■ 3.3V USB pad supply linear regulator

■ Low-voltage linear regulator for internal digital supply with

0.80V to 1.25V output

■ Low-voltage linear regulator for internal analogue supply

with 1.35V output

■ Power-on-reset detects low supply voltage

■ Power management includes digital shutdown and wake-

up commands with an integrated low-power oscillator for

ultra-low power Park/Sniff/Hold mode

Battery Charger

■ Lithium ion / Lithium polymer battery charger with instant-

■ Fast charging support up to 200mA with no external

components

■ Higher charge currents using external pass device

■ Supports USB charge enumeration

■ Charger pre-calibrated by CSR

■ PSE compliance:

■ Design to JIS-C 8712/8714 (batteries)

■ Testing based on IEEE 1725

Auxiliary Features

■ Customer application space available

■ Crystal oscillator with built-in digital trimming

■ Clock request output to control external clock

■ Auxiliary ADC and DAC available to applications

Package Option

■ 6.5 x 6.5 x 1mm, 0.5mm pitch 112‑ball VFBGA

Production Information

This material is subject to CSR's non-disclosure agreement

Page 2 of 116

CS-127997-DSP2

www.csr.com

CSR8670 BGA

Data Sheet

Free Datasheet http://www.datasheetlist.com/

Functional Block Diagram

G-TW-0005372.7.2

Memory

Management

Unit

Bluetooth Modem

80MHz DSP

C/SPI

Master

/Slave

16 PIO

SPI

(Debug)

UART

4 Mbps

System

RAM

Serial Quad

I/O

Flash

(SQIF)

Interface

DMA ports

PCM /

S /SPDIF

eFlash

PIOSPI_DEBUG Serial Flash/RAM

MIC_LN

UART

80MHz MCU

SPKR_LN

Audio

Interface

MIC Bias

MIC_BIAS_B

MIC_BIAS_A

USB v2.0

Full-speed

USB

3.3V

MIC Bias

MEMS

MIC

Digital MICs

SPI–Lock

/DFU

Encrypt

VM Accelerator

(MPU )

LCD

Segment

Driver

PMU

Interface

and

BIST

Engine

LED PWM

Control and

Output

DM1

DM2

RGB

Digital Audio

1.35V

Switch-

mode

Regulator

Bypass

LDO

SMP_VBAT

LXL_1V8

Li-ion

Charger

VCHG

SMPS_3V3

1.8V

Switch-

mode

Regulator

LX_1V35

SMPS_1V8_SENSE

VOUT_3V3

Voltage / Temperature

Monitor

BT_RF

CAP_SENSE[0]

Clock

Generation

Analogue

Test

AUX ADC

XTAL AIO[1:0]

Capacitive

Touch

Controller

CAP_SENSE[1]

CAP_SENSE[2]

CAP_SENSE[3]

CAP_SENSE[4]

CAP_SENSE[5]

MIC_LP

MIC_RN

MIC_RP

SPKR_LP

SPKR_RN

SPKR_RP

SENSE SENSE

Bluetooth

Baseband

Bluetooth Radio

and Balun

High-quality ADC

High-quality DAC

1.35V

Low-voltage

VDD_AUX

Linear

Regulator

1.35V

Low-voltage

VDD_ANA

Linear

Regulator

0.85V to

1.2V

Low-voltage

VDD_DIG

Linear

Regulator

DMA ports

VDD_AUX

SENSE

VDD_ANA

SENSE

VDD_BT_RADIO

VDD_DIG_EFLASH

SENSE

CH_EXT

Switch

SMPS_1V35_SENSE

SENSE

VBAT

External

Connection

External

Connection

VDD_AUX_1V8

VREGIN_DIG

Production Information

This material is subject to CSR's non-disclosure agreement

Page 3 of 116

CS-127997-DSP2

www.csr.com

CSR8670 BGA Data Sheet

Free Datasheet http://www.datasheetlist.com/

Document History

Revision Date Change Reason

1 01 APR 11 Original publication of this document.

2 30 JUN 11 Production information added.

If you have any comments about this document, email comments@csr.com giving

number, title and section with your feedback.

Production Information

This material is subject to CSR's non-disclosure agreement

Page 4 of 116

CS-127997-DSP2

www.csr.com

CSR8670 BGA Data Sheet

Free Datasheet http://www.datasheetlist.com/

Status Information

The status of this Data Sheet is Production Information.

CSR Product Data Sheets progress according to the following format:

Advance Information

Information for designers concerning CSR product in development. All values specified are the target values of the

design. Minimum and maximum values specified are only given as guidance to the final specification limits and must

not be considered as the final values.

All detailed specifications including pinouts and electrical specifications may be changed by CSR without notice.

Pre-production Information

Pinout and mechanical dimension specifications finalised. All values specified are the target values of the design.

Minimum and maximum values specified are only given as guidance to the final specification limits and must not be

considered as the final values.

All electrical specifications may be changed by CSR without notice.

Production Information

Final Data Sheet including the guaranteed minimum and maximum limits for the electrical specifications.

Production Data Sheets supersede all previous document versions.

Life Support Policy and Use in Safety-critical Applications

CSR's products are not authorised for use in life-support or safety-critical applications. Use in such applications is

done at the sole discretion of the customer. CSR will not warrant the use of its devices in such applications.

CSR Green Semiconductor Products and RoHS Compliance

CSR8670 BGA devices meet the requirements of Directive 2002/95/EC of the European Parliament and of the

Council on the Restriction of Hazardous Substance (RoHS).

CSR8670 BGA devices are also free from halogenated or antimony trioxide-based flame retardants and other

hazardous chemicals. For more information, see CSR's

Environmental Compliance Statement for CSR Green

Semiconductor Products

Trademarks, Patents and Licences

Unless otherwise stated, words and logos marked with

™

are trademarks registered or owned by CSR plc or its

affiliates. Bluetooth

and the Bluetooth

logos are trademarks owned by Bluetooth

SIG, Inc. and licensed to

CSR. Other products, services and names used in this document may have been trademarked by their respective

owners.

The publication of this information does not imply that any license is granted under any patent or other rights owned

by CSR plc and/or its affiliates.

CSR reserves the right to make technical changes to its products as part of its development programme.

While every care has been taken to ensure the accuracy of the contents of this document, CSR cannot accept

responsibility for any errors.

Refer to www.csrsupport.com for compliance and conformance to standards information.

Production Information

This material is subject to CSR's non-disclosure agreement

Page 5 of 116

CS-127997-DSP2

www.csr.com

CSR8670 BGA Data Sheet

Free Datasheet http://www.datasheetlist.com/

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