BCM20705 Datasheet, PDF (2/67 Pages) Cypress Semiconductor – Single-Chip Bluetooth Transceiver and Baseband Processor

Data Sheet
BCM20705
Single-Chip Bluetooth Transceiver and Baseband Processor
GENERAL DESCRIPTION
The Broadcom® BCM20705 is a monolithic, single-
chip, Bluetooth 4.1 compliant, stand-alone baseband
processor with an integrated 2.4 GHz transceiver.
Manufactured using the industry's most advanced
65 nm CMOS low-power process, the BCM20705
employs the highest level of integration, eliminating
all critical external components, and thereby
minimizing the device’s footprint and costs associated
with the implementation of Bluetooth solutions.
The BCM20705 is the optimal solution for voice and
data applications that require a Bluetooth SIG
standard Host Controller Interface (HCI) via USB,
UART H4 or H5, and PCM audio interface support.
The BCM20705 radio transceiver’s enhanced radio
performance meets the most stringent industrial
temperature application requirements for compact
integration into mobile handset and portable devices.
The BCM20705 is fully compatible with all standard
TCXO frequencies and provides full radio
compatibility, enabling it to operate simultaneously
with GPS and cellular radios.
FEATURES
• Bluetooth 4.1 + EDR compliant
• Class 1 capable with built-in PA
• Programmable output power control meets Class
1, Class 2, or Class 3 requirements
• Use supply voltages up to 5.5V
• Supports Broadcom SmartAudio™, wide-band
speech, SBC codec, and packet loss
concealment.
• Fractional-N synthesizer supports frequency
references from 12 MHz to 52 MHz
• Automatic frequency detection for standard
crystal and TCXO values when an external
32.768 kHz reference clock is provided.
• Ultra-low power consumption
• Supports serial flash interfaces
• Available in a 50-ball FPBGA package.
• ARM7TDMI-S™–based microprocessor with
integrated ROM and RAM
• Supports mobile and PC applications without
external memory
• A USB hub
APPLICATIONS
• Desktop and laptop personal computers
• Computer peripheral devices (PCMCIA cards, CF
cards, and USB dongles)
• Personal digital assistants
• Automotive telematic systems
Figure 1: System Block Diagram
PCM/I²C
USB
UART/SPI
GPIO
SPI Master
BSC
TCXO
LPO
BCM20705
High-Speed Peripheral
Transport Unit (PTU)
Radio Transceiver
Microprocessor and
Memory Unit (uPU)
Bluetooth Baseband
Core (BBC)
5300 California Avenue • Irvine, CA 92617 • Phone: [phone] • Fax: [phone]
MCS20705-DS104-R
November 13, 2014