FEATURES
n n n n n n n n n n n n DESCRIPTION
The LTC®6603 is a dual, matched, programmable lowpass filter for communications receivers and transmitters. The selectivity of Furthermore, the differential inputs and outputs provide a simple interface for most communications systems. The external resistor programs an internal oscillator whose frequency is divided prior to being applied to the filter networks. This allows up to three cutoff frequencies that can be obtained for each external resistor value, allowing the cutoff frequency to be programmed over a range of more than six octaves. Alternatively, the cutoff frequency can be set with an external clock. The filter gain can also be programmed to 1, 2, 4 or 16. The LTC6603 features a low power shutdown mode that can be programmed through the serial interface and is available in a 24-pin 4mm × 4mm QFN package. Guaranteed Phase and Gain Matching Specs Programmable BW Up to 2.5MHz Programmable Gain (0dB/6dB/12dB/24dB) 9th Order Linear Phase...