CSR BlueCore CSR8640 BGA - User Manual

Features
BlueCore
®
CSR8640™ BGA
■
80MHz RISC MCU and 80MIPS Kalimba DSP
■
Internal ROM, serial flash memory and EEPROM
interfaces
■
Stereo codec with 2 microphone inputs
■
Radio includes integrated balun
■
5-band fully configurable EQ
■
CSR's latest CVC technology for narrow-band
and wideband voice connections including wind
noise reduction
■
HFP v1.6 includes wideband speech and mSBC
codec
■
Voice recognition support for answering a call,
enables true hands-free use
■
Multipoint HFP connection to 2 phones for voice
■
Multipoint A2DP connection enables a headset
(A2DP) connection to 2 A2DP source devices for
music playback
■
Secure simple pairing, CSR's proximity pairing
and CSR's proximity connection
■
Audio interfaces: I²S and PCM
■
Serial interfaces: UART, USB 2.0 (full-speed),
I²C and SPI
■
SBC, MP3 and AAC decoder support
■
Wired audio support (USB and analogue)
■
Support for smartphone/tablet applications
■
Integrated dual switch-mode regulators, linear
regulators and battery charger
■
External crystal load capacitors not required for
typical crystals
■
3 LED outputs
■
68‑ball VFBGA 5.5 x 5.5 x 1mm 0.5mm pitch
■
Green (RoHS compliant and no antimony or
halogenated flame retardants)
Stereo Headset Solution
Low-power Solution for
DSP Intensive Audio Applications
2-mic CVC Audio Enhancement
Fully Qualified Single-chip
Bluetooth
®
v3.0 System
Advance Information
CSR8640A03
Issue 1
2.4GHz
Radio
+
Balun
I/ OBT _RF
RAM
Baseband
MCU
Kalimba
DSP
ROMXTAL
Seri al Flash /
EEPROM
UART/USB
Audio In/Out
SPI/I
2
C
External Memory
PIO
General Description
The BlueCore
®
CSR8640™ BGA is a product from
CSR's Connectivity Centre. It is a single-chip radio and
baseband IC for Bluetooth 2.4GHz systems.
The integrated peripherals reduce the number of
external components required, including no
requirement for external codec, battery charger,
SMPS, LDOs, balun or external program memory,
ensuring minimum production costs.
The battery charger architecture enables the
CSR8640 BGA to independently operate from the
charger supply, ensuring dependable operation for all
battery conditions.
Applications
■
Stereo headsets
■
Wired stereo headsets and headphones
■
Portable stereo speakers
The enhanced Kalimba DSP coprocessor with
80MIPS supports enhanced audio and DSP
applications.
The integrated audio codec supports 2 channels of
ADC, 2 digital microphone inputs and stereo output, as
well as a variety of audio standards.
See CSR Glossary at www.csrsupport.com.
Advance Information
This material is subject to CSR's non-disclosure agreement
© Cambridge Silicon Radio Limited 2011
Page 1 of 110
CS-209182-DSP1
www.csr.com
CSR8640 BGA
Data Sheet

Summary

Features

BlueCore CSR8640 BGA

Stereo Headset Solution

Low-power Solution for DSP Intensive Audio Applications

Optimized for DSP intensive audio tasks.

2-mic CVC Audio Enhancement

Enhanced audio processing with dual microphones.

Fully Qualified Single-chip Bluetooth v3.0 System

Integrated Bluetooth v3.0 system.

Device Details

Kalimba DSP

80MIPS DSP coprocessor for audio/DSP applications.

Audio Interfaces

Codec with ADCs, digital mic inputs, and stereo output.

Physical Interfaces

UART, USB, SPI, I2C, PIO, PCM, I2S interfaces.

Integrated Power Control and Regulation

Automatic power switching and regulators.

Battery Charger

Lithium-ion/polymer charger with fast charge support.

Baseband and Software

Internal ROM, memory protection, and hardware engine.

CSR8640 Stereo Headset Details

Bluetooth Profiles

Support for v3.0, HFP, HSP, A2DP, AVRCP.

Improved Audio Quality

2-mic CVC audio enhancements, mSBC codec.

Music Enhancements

Headset Configurator Tool

CSR8640 Stereo Headset Development Kit

Functional Block Diagram

Interfaces

Programmable I;O Ports, PIO

Audio Interface

Audio Input and Output

Audio Codec Interface

PCM1 Interface

Digital Audio Interface (I2 S)

Power Control and Regulation

1.8 V Switch-mode Regulator

Provides 1.80V supply rail with 185mA output.

1.35 V Switch-mode Regulator

Provides 1.35V supply rail with 160mA output.

1.8 V and 1.35 V Switch-mode Regulators Combined

Parallel configuration for higher current 1.80V supply.

Bypass LDO Linear Regulator

Low-voltage VDD_DIG Linear Regulator

Low-voltage VDD_AUX Linear Regulator

Low-voltage VDD_ANA Linear Regulator

Voltage Regulator Enable

Reset, RST#

Battery Charger

Battery Charger Hardware Operating Modes

Modes like Disabled, Trickle, Fast, Standby, Error.

External Mode

Electrical Characteristics

Absolute Maximum Ratings

Maximum ratings for storage and supply voltages.

Recommended Operating Conditions

Recommended operating ranges for voltage and temperature.

Input;Output Terminal Characteristics

Characteristics for regulators and I/O terminals.

ESD Protection

ESD handling precautions and maximum ratings.

Power Consumption

Software

CSR8640 BGA

Integrated Bluetooth v3.0, CVC, EQ, development kit.

CSR8640 Stereo Headset

ROM software features, configurability.

Proximity Pairing

Proximity Connection

6 th Generation 2-mic CVC Audio Enhancements

Wind Noise Reduction

Dual-microphone Signal Separation

Noise Suppression

Acoustic Echo Cancellation

Equalisation

Automatic Gain Control

Packet Loss Concealment

Adaptive Equalisation

Frequency Enhanced Speech Intelligibility

Music Enhancements

Audio Decoders

Configurable EQ

Stereo Widening (S3 D)

Volume Boost

CSR8640 Stereo Headset Development Kit

CSR BlueCore CSR8640 BGA Specifications

General

Bluetooth Version	Bluetooth 4.0
Profiles	A2DP, AVRCP, HFP, HSP
Audio Codec	SBC, AAC, aptX
Package	BGA
Operating Range	Up to 10 meters
Chipset	CSR8640
Operating Temperature	-40°C to +85°C