CSR8670 datasheet(2/2 Pages) ETC1

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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

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

Audio Interfaces

■

Audio codec with 2 high-quality dedicated ADCs

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2 microphone bias generators and up to 2 analogue

microphone inputs

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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

■

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

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