PRELIMINARY
CYW43438
11.10 RDS/RBDS
The CYW43438 integrates a RDS/RBDS modem, the decoder includes programmable filtering and buffering functions. The RDS/
RBDS data can be read out through the HCI interface.
In addition, the RDS/RBDS receive functionality supports the following:
■ Block decoding, error correction, and synchronization
■ A flywheel synchronization feature, allowing the host to set parameters for acquisition, maintenance, and loss of sync. (It is possible
to set up the CYW43438 such that synchronization is achieved when a minimum of two good blocks (error free) are decoded in
sequence. The number of good blocks required for sync is programmable.)
■ Storage capability up to 126 blocks of RDS data
■ Full or partial block-B match detection with host interruption
■ Audio pause detection with programmable parameters
■ Program Identification (PI) code detection with host interruption
■ Automatic frequency jumping
■ Block-E filtering
■ Soft muting
■ Signal dependent mono/stereo blending
Document Number: 002-14796 Rev. *K
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