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CSR BC7830 蓝牙芯片

名称：IC集成电路

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简介：BC7830 addresses the need for diverse wireless feature sets in an even smaller form factor than CSR’s industry-leading B...

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产品介绍

Description

BC7830 addresses the need for diverse wireless feature sets in an even smaller form factor than CSR’s industry-leading BC7820. With Bluetooth, GPS and FM Rx/Tx, BC7830 heralds a previously unprecedented level of integration. BC7830 measures a mere 11mm² making it the world’s smallest GPS combination device, with the nearest competing device being over 50% larger.

Key features

Multi-band GNSS radio
Fully qualified Bluetooth v2.1 + EDR system with on-chip balun
BC7830 can be used as part of a fully compliant Bluetooth v3.0 + HS system
Integrated FM radio receiver and transmitter with full RDS/RBDS encoding and decoding, including support for TMC encoding and decoding
Both analogue and digital stereo audio input and output stages
Integrated digital core and analogue regulators
Green (RoHS and no antimony or halogenated flame retardants)

Benefits

Includes a multi-band GNSS radio and decimation chain optimised for use with a software GPS receiver. It is specifically architected to support multiple radio technologies.
It is capable of operating within challenging RF environments such as within a cellular phone using a clock in the range 19.2MHz to 52MHz. Also, it can be used in PNDs or PMPs. eGPS Fine Time and Fine Frequency Aiding are also supported using the high-precision signal timestamp mechanism via a PIO.
Includes AuriStream Bluetooth audio transfer which offers significant power reduction over the CVSD-based system when used at both ends of the link.
The device incorporates auto-calibration and BIST routines to simplify development, type approval and production test.
Can support receiving or transmitting FM radio broadcasts with simultaneous use of Bluetooth voice or data connections and GPS.

Product details

GPS Radio

GNSS radio with balanced RF input
Integral on-chip LNA with 2.5dB noise figure
Optional support for an external LNA

GPS Receiver

GNSS receive chain comprising digital decimator, quantiser and packet builder
Coaster for host MIPS/power-saving
Tone canceller for interference mitigation
Current consumption 45mA for simultaneous BT HV3 connection and GPS operation

Bluetooth Radio

On-chip balun (50Ω impedance in Tx and Rx modes)
No external trimming is required in production
Bluetooth v2.1 + EDR specification compliant

Bluetooth Transmitter

10dBm RF transmit power with level control from on-chip 6-bit DAC over a dynamic range >30dB
Class 1, Class 2 and Class 3 support without need for external power amplifier or TX/RX switch

Bluetooth Receiver

-93dBm π/4 DQPSK sensitivity
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
Channel classification for AFH

FM Receiver

-108dBm sensitivity
Simultaneous operation with Bluetooth
Support of US/Europe (87.5 to 108MHz) and Japanese (76 to 90MHz) FM bands
Wide dynamic range AGC
Soft mute and stereo blend
Adjustment-free stereo decoder and AFC
Autonomous search tuning function (up/down) with programmability (threshold setting)
RDS and RBDS demodulator
Audio output available over Bluetooth audio interface or dedicated audio output
Adaptive filter to suppress narrow band interference in the FM channel

FM Transmitter

118dBμV RF software-controllable transmit power level, specifically designed to overcome global differences in regulatory limits and variations in antenna implementations
Simultaneous operation with Bluetooth
Support of US/Europe (87.5 to 108MHz) and Japanese (76 to 90MHz) FM bands
RDS modulator PA output stage capable of PS, AF, PTY, RT, TP and TA transmissions
PCM/I2S digital audio input supported
Single-ended stereo analogue audio input

Synthesiser

Fully integrated synthesiser requires no external VCO varactor diode, resonator or loop filter
Compatible with external clock 19.2MHz to 52MHz

Audio

Single-ended stereo analogue audio line input and output
Digital audio input and output

Baseband and Software

AuriStream® (16, 24, 32, 48, 64, 80kbps) CODEC offering significant power reduction over the CVSDbased system when used at both ends of the link
Internal RAM allows full-speed data transfer, mixed voice and data, and full piconet operation, including all medium rate packet types
Logic for forward error correction, header error control, access code correlation, CRC, demodulation, encryption bit stream generation, whitening and transmit pulse shaping. Includes support for eSCO and AFH
Transcoders for A-law, μ-law and linear voice from host and A-law, μ-law and CVSD voice over air

Physical Interfaces

SDIO and CSPI (CSR SPI)
Synchronous serial interface up to 4Mbits/s for system debugging
UART interface with programmable baud rate up to 4Mbits/s
Two digital audio PCM/I2S interfaces (input and output)
Analogue stereo

Auxiliary Features

Power management includes digital shutdown, and wake up commands with an integrated low power oscillator for ultra low power Park/Sniff/Hold mode
Device can run in low power modes from an external 32.768kHz clock signal
Auto Baud Rate setting, depending on host interface
On-chip linear regulators: 1.8V output from typical 2.3-4.8V input and second low dropout linear regulators producing core voltages from 1.8V
Power-on-reset cell detects low supply voltage
Arbitrary sequencing of power supplies is permitted

Bluetooth Stack

CSR's Bluetooth Protocol Stack runs on the on-chip MCU in the configuration Standard HCI over UART, SDIO or CSPI

Package

55-ball 3.2 x 3.6 x 0.6mm, 0.4mm pitch WLCSP

CSR BC7820 蓝牙芯片

CSR 7810 蓝牙芯片