Technical Overview

Features
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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
On-chip SBC encoding
On-chip balun
Low-power selectable 1.2 to 3.6V I/O
Integrated I/O and core regulators
High-speed UART port (up to 4Mbps)
PCM/I2S digital audio interface
Support for IEEE 802.11 coexistence
HFP v1.6 wide-band speech supported on-chip
Optimised for use on low-cost PCBs
28-ball 2.57 x 3.21 x 0.6mm 0.5mm pitch WLCSP
Green (RoHS compliant and no antimony or
halogenated flame retardants)
Bluetooth® v4.1 Specification
Bluetooth Smart Ready
CSR8811A12
Production Information
Issue 1
Wi-Fi
Coex
RAM
UART
ROM
BT RF
2.4GHz
Radio
MMU
I/O
PIO
MCU
Kalimba DSP Core
Slow Clock
PCM/I2 S/SPI
System Clock or Crystal
General Description
Applications
The CSR8811 WLCSP 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 3Mbits/s and Bluetooth low energy.
CSR8811 WLCSP's dual-mode radio enables it to
connect to the billions of Bluetooth products already on
the market, as well as a new generation of Bluetooth low
energy devices.
Consumer electronics devices, for example:
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Portable navigation devices
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Point of sale terminals
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Personal media players
CSR designed CSR8811 WLCSP to reduce PCB area
and the number of external components:
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The high-power Class 1 Bluetooth transmitter
removes the requirement for external amplification.
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The balun is integrated, which results in a singleended 50Ω port that does not require additional
matching components.
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Integrated LDOs, with minimum decoupling
components required, allow the chip to be operated
directly from a battery or regulated supply.
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No requirement for external inductors.
This ensures that production costs are minimised.
The device incorporates auto-calibration and BIST
routines to simplify development, type approval and
production test.
To improve the performance of both Bluetooth and
IEEE 802.11b/g/n co-located systems a wide range of
coexistence features are supported.
When used with CSR Synergy® Software and a CSR
UniFi ® wireless chip, CSR8811 WLCSP provides a
system fully qualifiable to the Bluetooth v4.1 for faster
file transfer.
This family of Bluetooth products includes:
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CSR8311 A12 for automotive applications
Products requiring a standalone Bluetooth low energy
radio should use products of the CSR101x™ family.
Production Information
© Cambridge Silicon Radio Limited 2015
Confidential Information - This Material is Subject to CSR's Non-Disclosure Agreement
Page 1 of 3
CS-324220-TOP1
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CSR8811 WLCSP A12 Technical Overview
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BlueCore® CSR8811 WLCSP
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 19.2MHz to 40MHz
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Can be operated from external crystal
Physical Interfaces
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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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PCM interface/I2S interface
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Synchronous serial interface up to 4Mbps for system
debugging
Auxiliary Features
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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
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Auto Baud Rate setting, depending on host interface
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Integrated linear regulators:
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1.8V output from typical 2.5 to 4.8V (5.5V for
short periods) input (load current 100mA)
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Low dropout linear regulators producing internal
supply voltages from 1.8V, and allowing
operation directly from a battery
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Arbitrary sequencing of power supplies is permitted
Package
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28-ball 2.57 x 3.21 x 0.6mm, 0.5mm pitch WLCSP
Note:
This IC has the same package size as the
previous CSR8811 WLCSP 0.5mm pitch
versions and the CSR8810 WLCSP 0.5mm pitch
ICs.
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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-324220-TOP1
www.csr.com
CSR8811 WLCSP A12 Technical Overview
Bluetooth low energy
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Dual-mode Bluetooth low energy radio
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Support for Bluetooth basic rate/EDR and Bluetooth
low energy connections.
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Support for on-chip AES encryption
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Adaptive Bluetooth/Bluetooth low energy scheduler
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On-chip whitelist support
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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9dBm (typical) RF transmit power (basic rate) with
level control from on-chip 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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-95dBm (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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DQPSK and 8DPSK
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
CSR8811 WLCSP
Type
Size
Shipment
Method
WLCSP‑28-ball
(Pb free)
2.57 x 3.21 x 0.6mm
0.5mm pitch
Tape and reel
Order Number
CSR8811A12-ICXR-R
Note:
Supply chain: CSR's manufacturing policy is to multisource volume products. For further details, contact your local
sales account manager or representative.
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
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CSR8811 WLCSP A12 Technical Overview
1.1