BCM20705 datasheet(2/67 Pages) CYPRESS

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MCS20705-DS104-R

5300 California Avenue • Irvine, CA 92617 • Phone: 949-926-5000 • Fax: 949-926-5203

November 13, 2014

Data Sheet

BCM20705

Single-Chip Bluetooth Transceiver and Baseband Processor

Figure 1: System Block Diagram

GE NE R A L DE S C RI PT ION

FEATU R ES

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.

• 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

A P P L IC AT IO N S

• Desktop and laptop personal computers

• Computer peripheral devices (PCMCIA cards, CF

cards, and USB dongles)

• Personal digital assistants

• Automotive telematic systems

BCM20705

Microprocessor and

Memory Unit (uPU)

Bluetooth Baseband

Core (BBC)

High-Speed Peripheral

Transport Unit (PTU)

Radio Transceiver

TCXO

LPO

PCM/I

USB

UART/SPI

GPIO

SPI Master

BSC

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