OKI Semiconductor

FEDL7055-02

Issue Date: Apr. 8, 2003

ML7055

Bluetooth Baseband Controller IC

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GENERAL DESCRIPTION

The ML7055 is a CMOS digital IC for use in 2.4 GHz band Bluetooth™ systems. This IC incorporates the

ARM7TDMI

 as the CPU core, features a highly expandable architecture, and supports the interfaces for a variety

of applications. Since the ML7055 has Oki’s Bluetooth protocol stack software installed, when the IC is used in

conjunction with the Bluetooth RF transceiver IC, data/voice communications are possible while maintaining

interconnectivity with other Bluetooth systems.

FEATURES

• Conforms to Bluetooth Specification (Ver1.1)

• Designed for connection with the RF-LSI interface, such as the OKI RF-LSI interface (ML7050), the

SKYWORKS RF-LSI interface (CX72303), or the BROADCOM RF-LSI interface (BCM2002X) that

functions as the Bluetooth RF-LSI interface

• PCM-CVSD transcoder that provides high quality voice using the noise filter is installed

• Low power consumption in flexible power management modes according to operating modes of Bluetooth

•

DETACH signal provides control of change to power-saving mode (STOP) and return request to normal

mode.

• UART interface corresponding to baud rates up to 921.6 kbps

• Selactable 12 MHz or 13 MHz for the system clock

• Selectable 32 kHz or 32.768 kHz for the LPO clock

• Built-in programmed ROM eliminates external ROM/FLASH

• The packages are available in three types:

63-pin WCSP for ML7055HB

64-pin BGA for ML7055LA

84-pin BGA for ML7055LP

ARM, ARM7TDMI and Thumb are registered trademarks of ARM Ltd., UK.

BLUETOOTH is a trademark owned by Bluetooth SIG, Inc. and licensed to Oki Electric Industry.

The information contained herein can change without notice owing to the product being under development.