FEATURES
n n n n LTC6602 Dual Matched, High Frequency Bandpass/Lowpass Filters DESCRIPTION
n n n n n n n n n Matched Dual Filter/Driver, Ideal for RFID Readers Guaranteed Phase Matching to Within 2 Degrees Guaranteed Gain Matching to Within 0.2dB Configurable as Lowpass or Bandpass Programmable 5th Order Lowpass: 42kHz to 900kHz Programmable 4th Order Highpass: 4.2kHz to 90kHz Programmable Gain: 1×, 4×, 16×, 32× Simple Pin Programming or SPI Interface Low Noise: –145dBm/Hz (Input Referred) Low Distortion: –75dBc at 200kHz Differential, Rail-to-Rail Inputs and Outputs Input Range Extends from 0V to 5V Low Voltage Operation: 2.7V to 3.6V Shutdown Mode 4mm × 4mm QFN Package The LTC®6602 is a dual, matched, programmable bandpass or lowpass filter and differential driver. The selectivity of Gain programmability, and the fully differential inputs and outputs, simplify implementation in most systems. For bandpass functionality, the lowpass filters are programmed for the upper cutoff frequency. For lowpass functionality, the highpass filters can be bypassed.