OKI Semiconductor
ML7055
Bluetooth Baseband Controller IC
FEDL7055-02
Issue Date: Apr. 8, 2003
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
•
The high-speed, low-power ARM7TDMI
TM
is installed as the CPU core
•
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
•
I
2
C bus interface provides accesses to EEPROM or PCM-Codec
•
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.
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