功能特点
TD-SCDMA transceiver
The RDA8206B RF transceiver is a fully integrated single-chip CMOS RF transceiver, fabricated in proven CMOS technology, for the Third Generation Partnership Project (3GPP) specification for the Universal Mobile Telecommunication System (UMTS) and GSM applications for 850MHz, 900MHz, 1800MHz and 1900MHz bands. The chip is specifically designed for UMTS Time Division Duplex (TDD) mode or TD-SCDMA standard that operates in the dual-band range of 1880 to 1920 MHz and 2010 to 2025 MHz (1.28 Mcps option) and for GSM mode that operates in the quad-band range of 850MHz, 900MHz, 1800MHz and 1900MHz.
The chipset consists of the RDA8206B transceiver and RDA8216 power amplifier for TD-SCDMA, RDA6212 power amplifier for GSM and RDA ES04 TX.RX switch. This RF chipset provides a complete solution connecting antenna to baseband for these two modes,eliminating the expensive IF SAW filter. All bulky components, such as RF VCO, loop filters, and tuning inductors, are completely integrated on chip.
参数指标
+ Fully integrated single-chip RF transceiver:
- 3GPP TD-SCDMA 1900MHz/2000MHz band
- GSM 850MHz band
- E-GSM 900MHz band
- DCS 1800MHz band
- PCS1900MHz band
+ RF total solution for GSM/TD-SCDMA:
- RDA8206B RF Transceiver
- RDA8216 TD-SCDMA power amplifier
- RDA6212 quad-band GSM power amplifier
- RDA ES04 RX/TX Switch
+ Digital low-IF receiver for GSM and digital zero-IF receiver for TD-SCDMA:
- Low noise RF front-end
- Image-reject down-converter
- High performance A/D converter
- On-chip DC offset cancellation
+ Direct fractional-N PLL modulation transmitter for GSM
+ Direct up-conversion transmitter for TD-SCDMA:
- Highly linear I/Q modulator
- RF VGA with over 90 dB APC control
- Minimum Carrier Leakage
+ Σ-Δ Fractional-N Frequency Synthesizer:
- Fully integrated on-chip VCO & loop filter
- Low phase noise
- Fast locking (<30μs)
+ Support 26MHz TC-VCXO or crystal,
+ Can output 13MHz, 26MHz system clock to baseband
+ SPI 3-wire serial interface bus
+ Support both analog I/Q baseband data interface and digital I/Q baseband data interface GSM/TD-SCDMA
+ 48-PIN 7mm × 7mm QFN package
+ 2.6 to 3.3V operation
+ UMTS(TDD)/TD-SCDMA cellular handsets
应用领域
1.GSM/GPRS cellular handsets for 850MHz.900MHz.1800MHz and 1900MHz bands
2.Wireless data modems and terminals
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