RF137
Key Features
- Image-reject mixer for downconversion to 2nd IF 24 dB selectable attenuation on 1st IF amplifier 12 dB selectable attenuation on 2nd IF amplifier Integrated transmit path with high phase accuracy Reduced filtering requirements for the transmit path Wide RF and IF range for multi-band operation Integrated, fully programmable dual loop synthesizer Integrated local oscillator phase shifters On-chip second local oscillator Low supply voltage down to 2.7 V Separate enable lines for transmit, receive, and synthesizer modes for power management 48-pin Thin Quad Flat Pack (TQFP) (7mm x 7mm) package
- GSM900/DCS1800/PCS1900 digital cellular telephony
