BlueCore® CSR8811™ A08 0.5mm WLCSP
■ Dual-mode Bluetooth®/Bluetooth low energy
■ Fully qualified Bluetooth v4.0 IC
■ Bluetooth Smart Ready
■ Can form part of Bluetooth v4.0 + HS system
■ Class 1 or Class 2 Bluetooth power levels
■ High-sensitivity Bluetooth and Bluetooth low
■ Full-speed Bluetooth operation with full piconet
and scatternet support
■ On-chip balun and minimal BOM
■ Low-power selectable 1.2 to 3.6V I/O
■ Integrated I/O and core regulators
■ High-speed UART port (up to 4Mbps)
■ HFP v1.6 wide-band speech supported on-chip
■ On-chip encoding of SBC and aptX® codecs for
A2DP music streaming
■ PCM/I2S digital audio interface
■ Support for IEEE 802.11 coexistence
■ Green (RoHS and no antimony or halogenated
■ Optimised for use on low-cost PCBs
Bluetooth low energy
The CSR8811™ 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'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
Bluetooth low energy allows mobile devices to
exchange simple data sets with very low consumption.
Example use cases include watches, medical sensors
and fitness trainers that can operate for many years
from a small coin cell battery. CSR8811 brings
Bluetooth low energy to the mobile phone, allowing it
to connect to this new class of devices.
When used with CSR Synergy Software™ and a CSR
UniFi ® wireless chip, CSR8811 provides a system
fully qualifiable to the Bluetooth v4.0 + HS system for
faster file transfer.
This family of Bluetooth products includes:
■ CSR8311™ A08 for automotive applications
■ CSR8510™ A06 for PCs and USB dongles
Products requiring a standalone Bluetooth low energy
radio should use CSR1000™ or CSR1001™ ICs.
■ Low-cost phones, Feature phones, Smartphones
■ Personal Navigation Devices (PNDs)
■ Portable media Players (PMPs)
CSR designed CSR8811 to reduce PCB area and the
number of external components:
■ The high-power Class 1 Bluetooth transmitter
removes the requirement for external
■ The balun is integrated, which results in a single-
ended 50Ω port that does not require additional
■ Integrated LDOs, with minimum decoupling
components, allow the chip to be operated directly
from the battery or a regulated supply.
■ 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
To improve the performance of both Bluetooth and
IEEE 802.11b/g/n co-located systems a wide range of
coexistence features are supported.
This Material is Subject to CSR's Non-Disclosure Agreement
© Cambridge Silicon Radio Limited 2012
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