AERO4223
General Description
The Aero4223 is a complete RF transceiver for multi-band GSM, GPRS, and EDGE wireless communications. The receive section interfaces between the RF band-select SAW filters and the baseband subsystem. The Aero4223 receiver leverages a proven digital low-IF architecture and enables a universal baseband interface without the need for complex dc offset compensation. The transmit section of the Aero4223 provides a complete upconversion path from the baseband subsystem and the power amplifier and uses a unique dual-transmitter architecture for EDGE. In GMSK mode, an offset phase locked loop (OPLL) is used to modulate the I and Q signals. In 8-PSK mode, the OPLL is unmodulated and acts as a local oscillator (LO) to the direct upconversion mixer.
All sensitive components, such as VCOs, loop filters, tuning inductors, and varactors are totally integrated into a single integrated circuit. The Aero4223 transceiver includes a digitally-controlled crystal oscillator (DCXO) and completely integrates the reference oscillator and varactor functionality.
Key Features
- GSM/GPRS/EDGE transceiver
- 110 nm RF CMOS
- Universal analog I/Q
- Digital low-IF receive architecture
- Best-in-class sensitivity
- Eliminates DC offset and AM detection
- Dual transmit architecture
- Minimizes phase error
- Best-in-class modulation spectrum and 20 MHz noise
- Optimized for low EVM
- Industry-leading BOM
- Quad-band -14 components
- Fully integrated DCXO
- Industry-leading footprint
- 4 x 4 mm 49-pin LFBGA
- Quad-band < 1.5 cm2
- Single-ended 50 ohm outputs
Connection Diagram
Applications
Supporting Documents
| Type: | Description: | File Size: | Download: |
| Brochure | High-performance products for a full range of cellular applications | 814KB | download |
