CSR8670 Datasheet PDF - CSR

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CSR8670
CSR

Part Number CSR8670
Description Low-power Solution for DSP Intensive Audio Applications
Page 30 Pages


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Features
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)
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.
BlueCore® CSR8670™ BGA
Low-power Solution for
DSP Intensive Audio Applications
Production Information
CSR8670C
Issue 2
XTAL
Clock
Generation
Flash
RAM
External
Memory
Serial Flash
UART/USB
BT_RF
2. 4GHz
Radio
+
Balun
Baseband
I/O
PIO
LED /PO
Audio In /Out
PCM/I2S/
SPDIF
Audio
Interface
MCU
Kalimba
DSP
Capacitive
Sense
SPI /I2C
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
© Cambridge Silicon Radio Limited 2011
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Device Details
Bluetooth Radio
Physical Interfaces
■ On-chip balun (50Ω impedance in TX and RX modes) ■ UART interface
■ No external trimming is required in production
■ USB 2.0 interface (full-speed)
■ Bluetooth v3.0 specification compliant
■ Master and slave bit-serialiser (I²C and SPI)
Bluetooth Transmitter
■ Up to 29 PIOs, i.e. 14 general purpose PIOs and unused
■ 10dBm RF transmit power with level control from on-chip
digital interfaces are available as PIOs
6-bit DAC over a dynamic range >30dB
■ SPI debug and programming interface with read access
■ Class 1, Class 2 and Class 3 support without the need for
disable locking
an external power amplifier or TX/RX switch
■ PCM, I²S and SPDIF interfaces
Bluetooth Receiver
■ Dual/quad external serial flash memory interface
■ Receiver sensitivity of -90dBm
■ Integrated channel filters
■ Digital demodulator for improved sensitivity and co-
channel rejection
■ 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
■ Real-time digitised RSSI available to application
■ 2 high-efficiency switch-mode regulators with 1.8V and
■ Fast AGC for enhanced dynamic range
1.35V outputs from battery supply
■ Channel classification for AFH
■ 3.3V USB pad supply linear regulator
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
■ 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-
on
■ 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:
Audio Interfaces
■ Audio codec with 2 high-quality dedicated ADCs
■ 2 microphone bias generators and up to 2 analogue
■ Design to JIS-C 8712/8714 (batteries)
■ Testing based on IEEE 1725
Auxiliary Features
microphone inputs
■ Customer application space available
■ Up to 6 digital microphone (MEMS) inputs
■ Crystal oscillator with built-in digital trimming
■ G.722 compatible, includes improved digital FIR filter path ■ Clock request output to control external clock
for stop-band attenuation required for G.722 compliance ■ Auxiliary ADC and DAC available to applications
■ Enhanced side-tone gain control
Package Option
■ Supported sample rates of 8, 11.025, 16, 22.05, 32, 44.1, ■ 6.5 x 6.5 x 1mm, 0.5mm pitch 112‑ball VFBGA
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
Production Information
This material is subject to CSR's non-disclosure agreement
© Cambridge Silicon Radio Limited 2011
Page 2 of 116
CS-127997-DSP2
www.csr.com
Free Datasheet http://www.datasheetlist.com/



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Functional Block Diagram
SPI_DEBUG
PIO
Serial Flash/RAM UART
SPI
(Debug)
SPI–Lock
/DFU
Encrypt
16 PIO
LCD
Segment
Driver
Serial Quad
I/O
Flash
(SQIF)
Interface
UART
4 Mbps
DMA ports
System
RAM
I2C
RGB
USB
I2C/SPI
Master
/Slave
LED PWM
Control and
Output
USB v2.0
Full-speed
Bluetooth
Baseband
eFlash
Memory
Management
Unit
Audio
Interface
PM
DM1
DM2
80MHz DSP
80MHz MCU
VM Accelerator
(MPU)
6x
MEMS
MIC
PCM /
I2S /SPDIF
PMU
Interface
and
BIST
Engine
XTAL
AIO[1:0]
3.3V
Bluetooth Modem
Clock
Generation
Analogue
Test
AUX ADC
Capacitive
Touch
Controller
TX
Bluetooth Radio
and Balun
RX
High-quality ADC
High-quality ADC
High-quality DAC
High-quality DAC
Voltage / Temperature
Monitor
Switch
MIC Bias
MIC Bias
0.85V to
1.2V
Low-voltage
VDD_DIG
Linear
Regulator
SENSE
1.35V
Low-voltage
VDD_ANA
Linear
Regulator
SENSE
1.35V
Low-voltage
VDD_AUX
Linear
Regulator
SENSE
1.8V
Switch-
mode
Regulator
SENSE
1.35V
Switch-
mode
Regulator
SENSE
Bypass
LDO
SENSE
Li-ion
Charger
CAP_SENSE[0]
CAP_SENSE[1]
CAP_SENSE[2]
CAP_SENSE[3]
CAP_SENSE[4]
CAP_SENSE[5]
BT_RF
MIC_LN
MIC_LP
MIC_RN
MIC_RP
SPKR_LN
SPKR_LP
SPKR_RN
SPKR_RP
MIC_BIAS_A
MIC_BIAS_B
SMP_VBAT
VBAT
CH_EXT
VCHG
Production Information
This material is subject to CSR's non-disclosure agreement
© Cambridge Silicon Radio Limited 2011
External
Connection
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Document History
Revision Date
1 01 APR 11
2 30 JUN 11
Change Reason
Original publication of this document.
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
© Cambridge Silicon Radio Limited 2011
Page 4 of 116
CS-127997-DSP2
www.csr.com
Free Datasheet http://www.datasheetlist.com/



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