BCM2040 Просмотр технического описания (PDF) - Broadcom Corporation

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BCM2040

SINGLE-CHIP BLUETOOTH® MOUSE AND KEYBOARD

Broadcom Corporation 

BCM2040

®

SINGLE-CHIP BLUETOOTH® MOUSE AND KEYBOARD

FEATURES

SUMMARY OF BENEFITS

• 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 profile and minimize power

consumption

• Bluetooth version 1.2 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

152 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

• Available in 64-pin fpBGA and 100-pin fpBGA packages

• Cost-optimized solution for mouse and keyboard applications

- not a generic HCI device adapted for mouse and keyboard

• Achieves lowest possible cost through the integration of all

external components

• Direct interface to key scan matrix or ball/optical mouse

encoders

• Replaces existing mouse or keyboard processor and memory

and adds Bluetooth functionality

• Lowest power consumption solution provides greater than six-

month battery life

• Adaptive frequency hopping support ensures full

interoperability and coexistence with WLAN enabled personal

computers

• Optimized radio provides long-range, interference-free

operation in high-interference environments

• Transmitter provides +4 dBm output power and satisfies Class

2 operation

• Receiver provides -85 dBm receiver sensitivity

• Single monolithic bulk CMOS device providing low cost and

high availability of manufacturing supply

• AT commands (7.05 and 7.07)

APPLICATIONS

• Bluetooth mouse

• Bluetooth keyboard

• Remote control HID devices

• Game controllers

• Combination mouse/keyboard

BCM2040 Functional Block Diagram

Processing

Unit

2.4 GHz

Radio

RF Control

and Data

Bluetooth

Baseband

Core

System Bus

GPIO for

LEDs, LCD,

Power, etc.

Keyboard

Matrix

Scanner

3-Axis

Mouse

Signal

Decoder

RF I/O

T/R

Switch

Frequency

Synthesizer

Power

Mgmt

XTAL

GPIO

Scan

Matrix

Quadrature

Inputs

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