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PRELIMINARY
CYW43353
Figure 7. CVSD Decoder Output Waveform After Applying PLC
5.5.6 Audio Rate-Matching Algorithms
The CYW43353 has an enhanced rate-matching algorithm that uses interpolation algorithms to reduce audio stream jitter that may
be present when the rate of audio data coming from the host is not the same as the Bluetooth audio data rates.
5.5.7 Codec Encoding
The CYW43353 can support SBC and mSBC encoding and decoding for wideband speech.
5.5.8 Multiple Simultaneous A2DP Audio Streams
The CYW43353 has the ability to take a single audio stream and output it to multiple Bluetooth devices simultaneously. This allows a
user to share his or her music (or any audio stream) with a friend.
5.6 Adaptive Frequency Hopping
The CYW43353 gathers link quality statistics on a channel by channel basis to facilitate channel assessment and channel map
selection. The link quality is determined using both RF and baseband signal processing to provide a more accurate frequency-hop
map.
5.7 Advanced Bluetooth/WLAN Coexistence
The CYW43353 includes advanced coexistence technologies that are only possible with a Bluetooth/WLAN integrated die solution.
These coexistence technologies are targeted at small form-factor platforms, such as Automotive and Industrial connectivity systems,
including applications such as VoWLAN + SCO and Video-over-WLAN + High Fidelity BT Stereo.
Support is provided for platforms that share a single antenna between Bluetooth and WLAN. The CYW43353 radio architecture
allows for lossless simultaneous Bluetooth and WLAN reception for shared antenna applications. This is possible only via an inte-
grated solution (shared LNA and joint AGC algorithm). It has superior performance versus implementations that need to arbitrate
between Bluetooth and WLAN reception.
The CYW43353 integrated solution enables MAC-layer signaling (firmware) and a greater degree of sharing via an enhanced coex-
istence interface. Information is exchanged between the Bluetooth and WLAN cores without host processor involvement.
The CYW43353 also supports Transmit Power Control (TPC) on the STA together with standard Bluetooth TPC to limit mutual inter-
ference and receiver desensitization. Preemption mechanisms are utilized to prevent AP transmissions from colliding with Bluetooth
frames. Improved channel classification techniques have been implemented in Bluetooth for faster and more accurate detection and
elimination of interferers (including non-WLAN 2.4 GHz interference).
The Bluetooth AFH classification is also enhanced by the WLAN core's channel information.
5.8 Fast Connection (Interlaced Page and Inquiry Scans)
The CYW43353 supports page scan and inquiry scan modes that significantly reduce the average inquiry response and connection
times. These scanning modes are compatible with the Bluetooth version 2.1 page and inquiry procedures.
Document Number: 002-14949 Rev. *G
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