ITM2520

The ITM2520 is an optimized LNA/Mixer IC for dual-band tri-mode applications. It provides a receiver front-end for cellular CDMA/AMPS and GPS functions on a single chip. The LNAs/Mixers for both bands are designed for high gain, high linearity, and low noise figure with flexible optimization of performance. The device offers an easy control of linearity and current, using one external resistor, as well as a gain control to minimize intermodulation and cross-modulation due to strong jammers. The image-reject mixer(IRM) has high image-reject ratio at low current consumption, eliminating external RF SAW filter on GPS signal path. This feature saves the foot-print space and manufacturing cost simultaneously. The ITM2520 includes an internal LO frequency divider which allows the use of a single VCO for both bands.

The ITM2520 is fabricated on an advanced SiGe BiCMOSprocess, and is available in a small 24-pin Leadless Plastic Chip Carrier (LPCC) package.