Product Summary

The CX24108-20 is a Digital Satellite Tuner RF lC intended for high-volume digital video, audio and data receivers. When combined with the HM1221 QPSK demodulator/FEC IC, the CX24108-20 provides a complete broadband satellite front-end solution capable of operating from 1 to 45 Msps in the most demanding satellite environments. The CX24108-20 is designed for 80+ transponder systems and is compatible with international standards such as DVB and DSS.

Parametrics

CX24108-20 specifications: (1)RF input: 950 to 2150 MHz; (2)Input power range: -20 to -81 dBm; (3)Noise figure: 10 dB, typical; (4)Input IP3 at minimum gain: 12 dBm, typical; (5)I/Q phase difference: ±3 degrees, typical; (6)I/Q amplitude difference: ±1.5 dB, typical; (7)Filter tune range: 0.5 to 30 MHz; (8)Output voltage, RL≥1kΩ: 0.5 Vp-p; (9)Typical junction temperature: 90℃ at room temperature; (10)Operating temperature range: 0 to 70℃; (11)Package type: 48-pin eTQFP.

Features

CX24108-20 features: (1)Single-chip RF-to-baseband satellite receiver; (2)Zero-IF architecture eliminates the need for image-reject filtering; (3)Integrated LNA; (4)Integrated LO with onboard VCO and synthesizer; (5)Variable baseband filters for optimal interference rejection; (6)Single +5V supply.

Diagrams

CX24108-20 block diagram

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