LTC6602

The LTC^®6602 is a dual, matched, programmable bandpass or lowpass fi lter and differential driver. The selectivity of the LTC6602, combined with its phase matching and dynamic range, make it ideal for fi ltering in RFID systems. With two degree phase matching between channels, the LTC6602 can be used in applications requiring highly matched fi lters, such as transceiver I and Q channels. Gain programmability, and the fully differential inputs and outputs, simplify implementation in most systems.

Both channels of the LTC6602 consist of a programmable mlowpass and highpass fi lter. For bandpass functionality, the lowpass fi lters are programmed for the upper cutoff frequency. For lowpass functionality, the highpass fi lters can be bypassed. The fi lter cutoff frequencies can be set with a guaranteed accuracy of 3% with the use of a single resistor. Alternatively, the fi lter cutoff frequencies can be controlled with an external clock.

The LTC6602 operates on a single 2.7V to 3.6V supply and features a low power shutdown mode.