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4. Bluetooth Su bsystem Overview
The Cypress CYW43353 is a Bluetooth 4.1 + EDR-compliant, baseband processor/2.4 GHz transceiver. It features the highest level
of integration and eliminates all critical external components, thus minimizing the footprint, power consumption, and system cost of a
Bluetooth solution.
The CYW43353 is the optimal solution for any Bluetooth voice and/or data application. The Bluetooth subsystem presents a stan-
dard Host Controller Interface (HCI) via a high-speed UART and PCM for audio. The CYW43353 incorporates all Bluetooth 4.1 fea-
tures including Secure Simple Pairing, Sniff Subrating, and Encryption Pause and Resume.
The CYW43353 Bluetooth radio transceiver provides enhanced radio performance to meet –40°C to +85°C temperature applica-
tions and the tightest integration into automotive and industrial platforms. It is fully compatible with any of the standard TCXO fre-
quencies and provides full radio compatibility to operate simultaneously with GPS, WLAN, and cellular radios.
The Bluetooth transmitter also features a Class 1 power amplifier with Class 2 capability.
4.1 Features
Major Bluetooth features of the CYW43353 include:
Supports key features of upcoming Bluetooth standards
■
Fully supports Bluetooth Core Specification version 4.1 + (Enhanced Data Rate) EDR features:
■
Adaptive Frequency Hopping (AFH)
❐
Quality of Service (QoS)
❐
Extended Synchronous Connections (eSCO)—Voice Connections
❐
Fast Connect (interlaced page and inquiry scans)
❐
Secure Simple Pairing (SSP)
❐
Sniff Subrating (SSR)
❐
Encryption Pause Resume (EPR)
❐
Extended Inquiry Response (EIR)
❐
Link Supervision Timeout (LST)
❐
UART baud rates up to 4 Mbps
■
Supports Bluetooth 4.1 for automotive and industrial applications
■
Supports maximum Bluetooth data rates over HCI UART
■
Multipoint operation with up to seven active slaves
■
Maximum of seven simultaneous active ACL links
❐
Maximum of three simultaneous active SCO and eSCO connections with scatternet support
❐
Trigger Cypress 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
■
Controller Power Management
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
■
Document Number: 002-14949 Rev. *G
PRELIMINARY
)
CYW43353
Host
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