Copyright © 2009 LG Electronics. Inc. All right reserved.
3. Technical brief
GD510 Operational Description Revision A
LG Electronics 43/113 LGE Property
Bluetooth 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
Bluetooth Transmitter
• +6 dBm RF Transmit power with level control from on-chip 6-bit DAC over a dynamic range > 30dB
• Class 1 and Class 2 support without the need for an external power amplifier or TX/RX switch.
Bluetooth Receiver
• Integrated channel filters
• Digital demodulator for improved sensitivity and co-channel rejection
• Real time digitized RSSI available on HCI interface
• Fast AGC for enhanced dynamic range
• Channel classification for AFH
Synthesizer
• Fully integrated synthesizer requires no external VCO varactor diode, resonator or loop filter
• Compatible with crystals between 7.5 and 40MHz (in multiples of 250KHz) or an external clock
Audio
• Single-ended stereo analogue output
• 16-bit 48 kHz digital audio bit stream output
Baseband and Software
• Internal 48Kbyte 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. Supports all Bluetooth v 2.0 + EDR
features incl. ESCO and AFH
• Transcoders for A-law, u-law and linear voice from host and A-law, u-law and CVSD voice over air
Physical Interfaces
• Synchronous serial interface up to 4Mbits/s for system debugging
• UART interface with programmable baud rate up to 4Mbits/s with an optional bypass mode
• USB v1.1 interface
• I2C slave for FM
• Two audio PCM interfaces (input and output)
• Analogue stereo (output only)
Figure 21. Bluetooth / FM Radio Block Diagram
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