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3.1.10 Integrated RF Transmitter
• Offset phase lock loop
• IQ modulator DC offset calibration by BB ADC/DAC
• Precise quadrature by IF divide-by-4
• Integrated loop filter
3.1.11 Integrated RF Frequency Synthesizer
• Programmable fractional-N synthesizer
• Integrated wide range RFVCO
• Integrated loop filter
• Fast setting time suitable for multi-slot SPRS applications
3.1.12 Integrated RF Digitally-Controlled Crystal Oscillator(DCXO)
• One-pin 26MHz crystal oscillator
• On-chip programmable capacitor array for cross tune
3.1.13 Radio Interface and Baseband Front End
• GMSK modulator with analog I and Q channel outputs
• 10-bit D/A Converter for uplink baseband I and Q signals
• 14-bit high resolution A/D Converter for downlink baseband I and Q signals
• Calibration mechanism of offset and gain mismatch for baseband A/D Converter and D/A
Converter
• 10-bit D/A Converter for Automatic Power Control
• Programmable Radio RX filter with adaptive bandwidth control
• Dedicated Rx filter for FB acquisition
• 6-Pin Baseband Parallel Interface(BRI) with programmable driving strength
• Multi-band support
3.1.14 Voice and Modem CODEC
• Digital tone generation
• Voice Memo
• Noise Reduction
• Echo Suppression
• Advanced Sidetone Oscillation Reduction
• Digital sidetone generator with programmable gain
• Two programmable acoustic compensation filters
• GSM/GPRS quad vocoders for adaptive multirate(AMR), enhanced full rate(EFR), full
rate(FR), and half rate(HR)
• GSM channel coding, equalization and A5/1, A5/2 and A5/3 ciphering
• GPRS GEA1, GEA2 and GEA3 ciphering
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3. TECHNICAL BRIEF
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3. TECHNICAL BRIEF
LGE Internal Use Only
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