Specification
Radio
- Common TX/RX terminal simplifies external matching; eliminates external antenna switch
- BIST minimises production test time. No external trimming is required in production
- Full RF reference designs available
- Bluetooth® v2.0 + EDR specification compliant
Transmitter
- +6dBm RF transmit power with level control from on-chip 6-bit DAC over a dynamic range >30dB
- Class 2 and Class 3 support without the need for an external power amplifier or TX/RX switch
- Class 1 support using external power amplifier with RF power controlled by an internal 8-bit DAC
Receiver
- Integrated channel filters
- Digital demodulator for improved sensitivity and co-channel 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 an external crystal or with an external clock using sinusoidal or logic-level signals
- Accepts frequencies between 8 and 32MHz (in multiples of 250kHz); additionally accepts 7.68, 14.44, 15.36, 16.2, 16.8, 19.2, 19.44, 19.68, 19.8 and 38.4MHz TCXO frequencies typically used in GSM and CDMA devices
Auxiliary features
- Crystal oscillator with built-in digital trimming
- Power management includes digital shutdown, and wake up commands with an integrated low power oscillator for ultra low Park/Sniff/Hold mode
- Clock request output to control external clock
- On-chip linear regulator; 1.8V output from a 2.2-4.2V input, can also be used to generate microphone bias
- Power-on-reset cell detects low supply voltage
- Arbitrary power supply sequencing permitted
- 8-bit ADC and DAC available to applications
- Battery charger with programmable current (25-100mA) for Lithium Ion /Polymer battery
- LED intensity control for dedicated LED1 and LED0 outputs
Baseband and software
- Internal 6Mbits ROM
- Internal 48Kb RAM to support EDR. Allows full speed data transfer, mixed voice and data, and full piconet operation
- Logic for forward error correction, header error control, access code correlation, CRC, demodulation, encryption bit stream generation, whitening and transmit pulse shaping
- Transcoders for A-law, µ-law and linear voice from host and A-law, µ-law and CVSD voice over air
Physical interfaces
- Synchronous serial interface up to 4Mbaud for system debugging
- UART interface with programmable baud rate up to 3Mbaud with an optional bypass mode
- Full speed USB v1.1 interface supports OHCI and UHCI host interfaces. Compliant with USB v2.0
- Optional I2C™ compatible interface
Audio CODEC
- 15-bit resolution, 8kHz sampling frequency
- Digital enhancements to add bass cut, side tone and treble boost
- Analogue enhancements to support single-ended speaker drive capability and reference availability
Bluetooth stack
CSR's Bluetooth Protocol Stack runs on-chip in a variety of configurations:
- Standard HCI (UART or USB)
- Fully embedded to RFCOMM
- Customised builds with embedded application code
Package Options
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96-ball TFBGA, 8 x 8 x 1.2mm, 0.65mm pitch