1Device 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-
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
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
© Cambridge Silicon Radio Limited 2010 - 2011
Page 2 of 3
CS-205808-TOP3
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CSR8670 BGA
Technical Overview
