Product Categories
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)
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.
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