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BlueCore® BC6150™

BlueCore® BC6150™

Description

BC6150 is a DSP ROM solution aimed at the increasing number of mid-range Bluetooth headsets, and supports both single and dual-microphone CVC noise reduction. BC6150 also has all the features of BC6130 and BC6140, making it one of the most comprehensive mono headset parts on the market.

Key features

Single-chip 2-mic Bluetooth mono headset solution supporting audio prompts, multipoint and proximity pairing
Built-in high-performance fifth generation CVC single and dual microphone echo and noise cancellation
Low-power consumption: over 7 hours of talk time from a 120mAh battery
Advanced Multipoint support: enables a headset (HFP) connection to 2 phones for voice
Packet loss and bit error concealment to improve audio quality in the presence of air interference
Very low eBOM for a DSP based 2-mic noise reduction headset.
Green (RoHS compliant and no antimony or halogenated flame retardants)

Benefits

Supports Advanced Multipoint for dual handset connections
Programmable Audio Prompts to provide the user with tone and/or voice feedback and CSR’s Proximity Pairing (Headset Initiated Pairing)
The BC6150 DSP solution integrates a Bluetooth radio, baseband, DSP, high quality CODEC, SMPS and battery charger thereby minimising the bill of materials, component count and PCB footprint.

CVC brings the following benefits to the BC6150 device:

Packet loss and bit error concealment to provide enhanced performance in harsh RF environments such as cross-body situations.
Near end audio enhancements offset noise by automatically changing volume and audio characteristics.
Far end audio enhancements reduce or eliminate noise and echo received by the person on the far end.

Product details

Radio

Common TX/RX terminal simplifies external matching; eliminates external antenna switch
No external trimming is required in production
Bluetooth v2.1 + EDR specification compliant

Transmitter

7dBm RF transmit power with level control from on-chip 6-bit DAC over a dynamic range typically >30dB
Class 2 and Class 3 support without the need for an external power amplifier or TX/RX switch

Receiver

Receiver sensitivity of -90dBm
Integrated channel filters
Digital demodulator for improved sensitivity and cochannel rejection
Real-time digitised RSSI available on HCI interface
Fast AGC for enhanced dynamic range

Synthesiser

Fully integrated synthesiser requires no external VCO varactor diode, resonator or loop filter
Compatible with crystals between 16 and 26MHz or an external clock 12MHz to 52MHz

Kalimba DSP

Very low power Kalimba DSP coprocessor, 64MIPS, 24-bit fixed point core
Single-cycle MAC; 24 x 24-bit multiply and 56-bit accumulator
32-bit instruction word, dual 24-bit data memory
4K x 32-bit program RAM, 8K x 24-bit + 4K x 24-bit data RAM
64 x 32-bit program memory cache when executing from ROM

Audio CODEC

16-bit resolution mono CODEC
ADC and DAC
Integrated amplifiers for driving 16Ω speakers; no need for external components
Support for single-ended speaker termination and line output
Integrated low-noise microphone bias

Physical Interfaces

Synchronous serial interface for system debugging
I²C compatible interface to external EEPROM containing device configuration data (PS Keys)
UART interface with data rates up to 3Mbits/s

Subject to approval, a datasheet can be made available for this product via CSR Support.