BCM43455 Preliminary Data Sheet
Features
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Trigger Broadcom fast connect (TBFC)
Narrowband and wideband packet loss concealment
Scatternet operation with up to four active piconets with background scan and support for scatter mode
High-speed HCI UART transport support with low-power out-of-band BT_DEV_WAKE and
BT_HOST_WAKE signaling (see “Host Controller Power Management” on page 40)
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Channel quality driven data rate and packet type selection
Standard Bluetooth test modes
Extended radio and production test mode features
Full support for power savings modes
– Bluetooth clock request
– Bluetooth standard sniff
– Deep-sleep modes and software regulator shutdown
Supports a low-power crystal, which can be used during power save mode for better timing accuracy.
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Major FM radio features include:
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65 MHz to 108 MHz FM bands supported (US, Europe, and Japan)
FM subsystem control using the Bluetooth HCI interface
FM subsystem operates from reference clock inputs.
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Improved audio interface capabilities with full-featured bidirectional PCM and I S
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I S can be master or slave.
FM receiver-specific features include:
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Excellent FM radio performance with 1 μV sensitivity for 26 dB (S + N) ÷ N
Signal-dependent stereo/mono blending
Signal dependent soft mute
Auto search and tuning modes
Audio silence detection
RSSI, IF frequency, status indicators
RDS and RBDS demodulator and decoder with filter and buffering functions
Automatic frequency jump
Broadcom®
November 5, 2015 • 43455-DS109-R
Page 35
BROADCOM CONFIDENTIAL
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