BCM2042

Features:

• Single-chip Bluetooth® device with fully integrated Human
Interface Device (HID) profile and full Bluetooth stack
• On-board 8051 processor and RAM/ROM memory
• Custom-integrated Bluetooth core processor has been
optimized to support the HID v1.0 profile and minimize power consumption
• Bluetooth version 2.0 compliant including support for adaptive
frequency hopping and fast connect
• Fully integrated radio eliminates all filters and matching
components and features a single-pin interface directly to antenna
• Direct interface to keyboard scan matrix with full support for
up to 8 x 20 keys and user-customizable hot keys
• Integrated quadrature signal decoder to support both ball and
optical mouse designs
• Direct interface to LED and LCD displays
• Drive capability to power external optoelectronics
• ROM-based design eliminates external flash memories
• Flash option offered to support feature development
• Fully integrated low dropout (LDO) regulator provides
direction interface to batteries
• Integrated switching regulator to support external sensor and
more to further reduce BOM cost
• Available in 88-pin fpBGA and 120-pin fpBGA packages




Application

• Bluetooth mouse
• Bluetooth keyboard
• Remote control HID devices
• Game controllers
• Combination mouse/keyboard




Description

The BCM2042 is a major breakthrough in the design of low-cost Bluetooth mouse and keyboard devices. The BCM2042 is a true single chip that integrates the entire profile, application, and Bluetooth protocol stack and is fully compliant with the Bluetooth SIG specification for human interface devices. The BCM2042 is fully compliant with the version 2.0 Bluetooth specification, BCM2042 including adaptive frequency hopping and fast connection, which are essential to mouse and keyboard applications in personal computers.

Integration is key to achieving the system cost targets of today's PC OEMs. By integrating all components within today's mouse and keyboard into the BCM2042, low system costs can be achieved to approach the price points of legacy-wired mice and keyboards. The BCM2042 can interface directly to mouse optical or ball encoders and keyboard scan matrices.