CYW20706
1. Overview
The Broadcom CYW20706 complies with Bluetooth Core Specification, version 4.2+ HS and is designed for use in embedded BT4.2
and UART/USB HCI applications. The combination of the Bluetooth Baseband Core (BBC), a Peripheral Transport Unit (PTU), and
a Cortex-M3 based microprocessor with on-chip ROM provides a lower and upper layer Bluetooth stack, including Link Controller
(LC), Link Manager (LM), and HCI.
1.1 Major Features
Major features of the CYW20706 include:
■ Bluetooth v4.2 + EDR with integrated Class 1 PA
■ BT host digital interface (can be used concurrently with below interfaces):
❐ USB 2.0 full-speed (up to 12 Mbps)
❐ UART (up to 4 Mbps)42
■ Integrated RF section
❐ Single-ended, 50Ω RF interface
❐ Built-in TX/RX switch functionality
❐ TX Class 1 output power capability
❐ RX sensitivity basic rate of –93.5 dBm
❐ RX sensitivity for Low Energy of –96.5 dBm
■ GCI-enhanced coexistence support, ability to coordinate BT SCO transmissions around WLAN receives
■ Supports maximum Bluetooth data rates over HCI UART, USB, and SPI interfaces
■ I2S/PCM for BT audio
■ High-speed UART (H4, H4+) transport support
■ Wideband speech support (16 bits linear data, MSB first, left-justified at 4K samples/s for transparent air coding, both through I2S
and PCM interface)
■ Bluetooth SmartAudio® technology improves voice and music quality to headsets
■ Bluetooth low-power inquiry and page scan
■ Bluetooth low energy (BLE) support
■ Supports Broadcom proprietary 2 Mbps low energy mode
■ Maximum of 100 LE Connections
■ Supports TBFC (Triggered Broadcom [Bluetooth] Fast Connect)
■ Bluetooth packet loss concealment (PLC)
■ Bluetooth wide band speech (WBS)
Document Number: 002-14790 Rev. *A
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