Technical Overview

BlueCore® CSR8311 QFN Automotive
Features
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Bluetooth® v4.1 Specification
Bluetooth Smart Ready
CSR8311A12
Production Information
Issue 1
General Description
Applications
CSR8311 QFN is a product from CSR's Connectivity
Centre. It is a single-chip radio and baseband IC for
Bluetooth 2.4GHz systems including EDR to 3Mbps and
Bluetooth Smart.
Dedicated signal and baseband processing is included
for full Bluetooth operation.
When used with CSR's Synergy host software suite,
CSR8311 QFN provides a system fully qualified to the
Bluetooth v4.1 specification for data and voice
communications.
Automotive
USB Bluetooth dongles
CSR designed CSR8311 QFN to reduce PCB area and
the number of external components, including no
requirement for an external balun. This ensures that
production costs are minimised.
The device incorporates auto-calibration and BIST
routines to simplify development, type approval and
production test.
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RAM
USB
ROM
BT RF
2.4GHz
Radio
MMU
MCU
Kalimba DSP Core
UART
I/O
PIO
PCM/SPI/I 2S
XTAL
Production Information
© Cambridge Silicon Radio Limited 2015
Confidential Information - This Material is Subject to CSR's Non-Disclosure Agreement
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CSR8311 QFN Automotive A12 Technical Overview
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Fully qualified Bluetooth® v4.1 system
Full-speed Bluetooth operation with full piconet and
scatternet support
Class 1 Bluetooth power level supported
High-sensitivity Bluetooth receiver
Wideband speech
On-chip SBC encoding
On-chip balun
Low-power selectable 1.2 to 3.6V I/O
No external regulators required for USB supply
operation
Full-speed USB 2.0 interface
Integrated I/O and core regulators
High-speed UART port (up to 4Mbps)
2 x PCM/I²S digital audio interfaces
Support for IEEE 802 ®.11 coexistence
Optimised for use on low-cost PCBs
40-lead 6 x 6 x 0.9mm, 0.5mm pitch QFN
Green (RoHS compliant and no antimony or
halogenated flame retardants)
Device Details
Bluetooth Stack
CSR's Bluetooth Protocol Stack runs up to HCI on the
on-chip MCU
Synthesiser
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Fully integrated synthesiser requires no external
VCO varactor diode, resonator or loop filter
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Compatible with external clock 16MHz to 40MHz and
crystal oscillator 16MHz to 32MHz
Physical Interfaces
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Full-speed (12Mbps) USB 2.0 interface
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Synchronous serial interface up to 4Mbps for system
debugging
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UART interface with programmable baud rate up to
4Mbps
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BCSP, H4, H4DS and H5 support
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2 x PCM interface/I²S interface
Auxiliary Features
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Power management includes digital shutdown and
wake up commands with an integrated low power
oscillator
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Auto Baud Rate setting, depending on host interface
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Integrated linear regulators:
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USB: USB bus supply to 3.3V
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High-voltage: 2.3V to 4.8V input to 1.85V
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Low-voltage: VDD_DIG, VDD_ANA and
VDD_AUX regulators
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Arbitrary sequencing of power supplies is permitted
Package
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40-lead 6 x 6 x 0.9mm, 0.5mm pitch QFN
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Low-cost PCB with no laser via needed
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Production Information
© Cambridge Silicon Radio Limited 2015
Confidential Information - This Material is Subject to CSR's Non-Disclosure Agreement
Page 2 of 3
CS-324217-TOP1
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CSR8311 QFN Automotive A12 Technical Overview
Bluetooth Smart
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Dual-mode Bluetooth Smart radio
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Support for Bluetooth basic rate/EDR and Bluetooth
Smart connections
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3 Bluetooth Smart connections at the same time as
basic rate A2DP
Bluetooth Radio
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Integrated balun (50Ω impedance in TX and RX
modes)
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No external trimming is required in production
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Bluetooth v4.1 specification compliant
Bluetooth Transmitter
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9.5dBm (typical) RF transmit power (basic rate) with
level control from on-chip 6-bit DAC
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Class 1, Class 2 and Class 3 support without need for
external power amplifier or TX/RX switch
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DQPSK and 8DPSK
Bluetooth Receiver
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-92.5dBm (typical) π/4 DQPSK sensitivity
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Integrated channel filters
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Digital demodulator for improved sensitivity and cochannel rejection
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Real time digitised RSSI available on HCI interface
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Fast AGC for enhanced dynamic range
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Channel classification for AFH
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2Mbps and 3Mbps EDR support
Baseband and Software
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Internal RAM enables full-speed data transfer, mixed
voice and data, and full piconet operation, including
all medium rate packet types
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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. Includes
support for eSCO and AFH.
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Transcoders for A-law, µ-law and linear voice from
host and A-law, µ-law and CVSD voice over air
1
Ordering Information
Package
Device
CSR8311A12
QFN
Type
Size
Shipment
Method
QFN‑40-lead
(Pb free)
6 x 6 x 0.9mm
0.5mm pitch
Tape and Reel
Order Number
CSR8311A12-AQQD-R
Note:
Supply chain: CSR's manufacturing policy is to multisource volume products. For further details, contact your local
sales account manager or representative.
1.1
Contacts
General information
Information on this product
Customer support for this product
Details of compliance and standards
Help with this document
www.csr.com
[email protected]
www.csrsupport.com
[email protected]
[email protected]
Document History
Revision
Date
Change Reason
1
12 MAR 15
Original publication of this document.
Trademarks, Patents and Licences
Unless otherwise stated, words and logos marked with ™ or ® are trademarks registered or owned by CSR plc or its affiliates. Bluetooth ® and the
Bluetooth ® logos are trademarks owned by Bluetooth ® SIG, Inc. and licensed to CSR. Other products, services and names used in this document may
have been trademarked by their respective owners.
The publication of this information does not imply that any license is granted under any patent or other rights owned by CSR plc and/or its affiliates.
CSR reserves the right to make technical changes to its products as part of its development programme.
While every care has been taken to ensure the accuracy of the contents of this document, CSR cannot accept responsibility for any errors.
Refer to www.csrsupport.com for compliance and conformance to standards information.
Production Information
© Cambridge Silicon Radio Limited 2015
Confidential Information - This Material is Subject to CSR's Non-Disclosure Agreement
Page 3 of 3
CS-324217-TOP1
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CSR8311 QFN Automotive A12 Technical Overview
Minimum order quantity is 4kpcs taped and reeled.