Device Details
Bluetooth low energy
■ Dual‑mode Bluetooth low energy radio
■ Support for Bluetooth basic rate / EDR and low energy
connections
■ 3 Bluetooth low energy connections at the same time as
basic rate A2DP
Bluetooth Radio
■ On‑chip balun (50Ω impedance in TX and RX modes)
■ No external trimming is required in production
■ Bluetooth v4.0 specification compliant hardware
■ Bluetooth v4.0 specification fully qualified software
Bluetooth Transmitter
■ 10dBm RF transmit power with level control from on‑chip
6‑bit DAC
■ Class 1, Class 2 and Class 3 support without the need for
an external power amplifier or TX/RX switch
Bluetooth Receiver
■ Receiver sensitivity: -90dBm (basic rate) and -92dBm
(EDR)
■ 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 32MHz or an external
clock 19.2MHz to 40MHz
■ 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
■ Single‑cycle MAC; 24 x 24‑bit multiply and 56‑bit
accumulate with improved architecture and instructions for
better performance
■ 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 inputs (MEMS)
■ 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)
Package Option
■ 6.5 x 6.5 x 1mm, 0.5mm pitch 112‑ball VFBGA
Physical Interfaces
■UART interface
■ USB 2.0 interface (full‑speed)
■ Master and slave I²C interface
■ 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
0.85V to 1.20V 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:
■ 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
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
© Cambridge Silicon Radio Limited 2011-2013
Confidential Information - This Material is Subject to CSR's Non-disclosure Agreement
Page 3 of 117
CS-127997-DSP3
www.csr.com
CSR8670 BGA
Data Sheet
Prepared for jie gong - ceacsz.com.cn - Tuesday, February 26, 2013