CSR8670 datasheet(2/2 Pages) ETC1

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Device Details

Bluetooth Radio

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On-chip balun (50Ω impedance in TX and RX modes)

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No external trimming is required in production

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Bluetooth v3.0 specification compliant

Bluetooth Transmitter

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10dBm RF transmit power with level control from on-chip

6-bit DAC over a dynamic range >30dB

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Class 1, Class 2 and Class 3 support without the need for

an external power amplifier or TX/RX switch

Bluetooth Receiver

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Receiver sensitivity of -90dBm

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Integrated channel filters

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Digital demodulator for improved sensitivity and co-

channel rejection

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Real-time digitised RSSI available to application

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Fast AGC for enhanced dynamic range

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Channel classification for AFH

Bluetooth Synthesiser

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Fully integrated synthesiser requires no external VCO,

varactor diode, resonator or loop filter

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Compatible with crystals 19.2MHz to 42MHz or an external

clock 19.2MHz to 42MHz

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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

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Enhanced Kalimba DSP coprocessor, 80MIPS, 24‑bit

fixed point core

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2 single-cycle MACs; 24 x 24-bit multiply and 56-bit

accumulator

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32-bit instruction word, dual 24-bit data memory

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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

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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

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G.722 compatible, includes improved digital FIR filter path

for stop-band attenuation required for G.722 compliance

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Enhanced side-tone gain control

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Supported sample rates of 8, 11.025, 16, 22.05, 32, 44.1,

48 and 96kHz (DAC only)

Baseband and Software

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16Mb internal flash

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Memory protection unit supporting accelerated VM

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56KB internal RAM, enables full-speed data transfer,

mixed voice/data and full piconet support

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Logic for forward error correction, header error control,

access code correlation, CRC, demodulation, encryption

bit stream generation, whitening and transmit pulse

shaping

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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

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USB 2.0 interface (full-speed)

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Master and slave bit-serialiser (I²C and SPI)

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Up to 29 PIOs, i.e. 14 general purpose PIOs and unused

digital interfaces are available as PIOs

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SPI debug and programming interface with read access

disable locking

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PCM, I²S and SPDIF interfaces

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Dual/quad external serial flash memory interface

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3 LED drivers (includes RGB) with PWM flasher on sleep

clock

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Support for up to 6 capacitive touch sensor inputs

Integrated Power Control and Regulation

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2 high-efficiency switch-mode regulators with 1.8V and

1.35V outputs from battery supply

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3.3V USB pad supply linear regulator

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Low-voltage linear regulator for internal digital supply with

0.80V to 1.25V output

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Low-voltage linear regulator for internal analogue supply

with 1.35V output

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Power-on-reset detects low supply voltage

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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

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Lithium ion / Lithium polymer battery charger with instant-

■

Fast charging support up to 200mA with no external

components

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Higher charge currents using external pass device

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Supports USB charge enumeration

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Charger pre-calibrated

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PSE compliance:

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Design to JIS-C 8712/8714 (batteries)

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Testing based on IEEE 1725

Auxiliary Features

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Customer application space available

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Crystal oscillator with built-in digital trimming

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Clock request output to control external clock

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Auxiliary ADC and DAC available to applications

Package Option

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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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